Caterpillarwork toolpulverizer

Caterpillar VPC-40

Maintenance schedule, common problems & OEM parts breakdown

The Cat VPC-40 is a Verachtert-built, Cat-badged mechanical concrete pulverizer work tool for excavators, not a standalone machine. It is a passive pin-on attachment: a single jaw driven by one hydraulic cylinder fed entirely from the host excavator's auxiliary circuit, so it carries no engine, no onboard hydraulic reservoir, no undercarriage, and no fault-code system of its own. It sits mid-pack in Cat's VPC mechanical pulverizer line, sized above the compact-carrier VPC-30 and below the larger VPC-50 and VPC-60, and pairs with mid-size excavators through a pin-on mounting bracket; carrier class varies by configuration and is best confirmed with a dealer fitment chart. Confirmed OEM serial-effectivity records place the VPC-40 across four production ranges - BGY (earliest), then BNJ, then BTC, and a final BWB range built with the mounting and linkage arrangement for Cat 345 excavators ("F"/"T" linkage) and 345CL excavators ("TB" linkage) - pointing to a long production run with at least one carrier-fitment update along the way. Exact operating weight, jaw opening, and crushing-force figures are not published in available literature; standard factory configuration is a fixed, non-rotating single jaw with bolt-on, field-replaceable teeth and wear plates, with no rotator or dual-jaw option documented for this size.

Across its production life the VPC-40's core jaw-and-cylinder design stayed mechanically simple, with the documented changes concentrated in the mounting and linkage hardware rather than the crushing mechanism: OEM parts records show the bracket assembly was revised through the BGY, BNJ, and BTC ranges before settling on the BWB-range design built specifically for 345 and 345CL carriers. That carrier-driven update reflects how excavator boom and stick geometry, more than the pulverizer itself, tends to force a fitment revision on a passive tool like this. In the used and parts market the VPC-40 remains relevant as a low-complexity, affordable secondary demolition and rebar-separation tool: with no engine, hydraulics, or electronics of its own to fail, resale value and remaining service life hinge almost entirely on jaw and tooth wear, pin-and-bushing condition, cylinder seal integrity, and mounting-bracket structural soundness, which are the points a buyer or dealer should check before any purchase or rebuild decision.

Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.

Caterpillar VPC-40 specifications

Engine

Power sourceNo onboard engine or ECM. This is a passive pin-on jaw attachment; the crushing jaw is driven by a hydraulic cylinder powered entirely off the host excavator's auxiliary hydraulic circuit.
Emissions tierNot applicable — no engine fitted to this work tool.

Weights

Operating weightNot published in available spec literature for this specific size in the mechanical pulverizer line. It sits mid-family, heavier than the smaller jaw size and lighter than the larger jaw size in the same series — exact figure unconfirmed for this model; verify with a dealer using the machine's serial number.
Shipping weightNot documented in available sources.
Ground pressureNot applicable — this is a carried attachment, not a self-propelled machine, so it has no ground contact of its own.

Dimensions

Transport length/width/heightNot documented in available spec sources for this model.
Jaw opening / jaw depthNot published for this specific size; figures could not be confirmed from OEM or dealer literature without cross-borrowing from unrelated pulverizer/shear lines, which is avoided here.
Carrier weight classSized for mid-size hydraulic excavators per the family's general positioning, but the exact compatible carrier class/tonnage range for this specific size is not confirmed in available literature — verify with dealer fitment charts before ordering mounting brackets.

Performance

Crushing forceNot published for this specific model in available literature.
Travel speed / gradeabilityNot applicable — passive attachment with no independent propulsion.
Cycle/operating performanceDriven by the host excavator's auxiliary hydraulic flow and pressure; no independent performance rating published for this attachment.

Service capacities (summary)

Hydraulic systemNo dedicated reservoir, pump, or cooler on the tool itself — it operates on the carrier excavator's auxiliary hydraulic supply.
Fuel tankNot applicable — no engine on this work tool.
Engine oilNot applicable — no engine on this work tool.
Cooling systemNot applicable — no engine on this work tool.
Lubrication pointsPin and bushing joints require periodic grease per standard work-tool service intervals; no published quantity figures found.

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

VPC-40 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcaseNot applicableNo engine. VPC-40 is a passive mechanical pulverizer work tool with no onboard powerplant.
Cooling systemNot applicableNo cooling system. No engine or radiator fitted to this attachment.
Fuel tankNot applicableNo fuel tank. The attachment carries no combustion engine.
Transmission/powertrainNot applicableNo transmission or drivetrain compartments. The unit has no self-propulsion or internal gearing requiring oil service.
Final drivesNot applicableNot fitted. No final drive components on this attachment.
Hydraulic system and tankNot applicableNo onboard hydraulic reservoir, pump, or filtration. Jaw closing force comes from a single cylinder fed directly by the host excavator's auxiliary hydraulic circuit; fluid type, capacity, and service intervals follow the carrier machine's own hydraulic oil chart, not a separate chart for the attachment.
Axles/differentialsNot applicableNot fitted. Static work tool with no axle or differential hardware.
Grease points (jaw pivot pins, cylinder pins, bushings)Grease to purge at each point; no reservoir volume specifiedCat Extreme Application Grease (moly-fortified, NLGI #2) or equivalent multipurpose EP grease with 3-5% molybdenum disulfide additive. Apply until fresh grease purges from the joint. Daily greasing recommended under normal duty; shorten interval to every 4 to 5 hours in wet, muddy, or abrasive demolition debris conditions. No separate winter/summer viscosity grades called out for grease service on this attachment; standard Cat multipurpose grease is used year-round.

Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.

Caterpillar VPC-40 maintenance schedule

Service intervalTasks
Every 10 h
  • Grease the jaw pivot pins, cylinder pins, and bushings until fresh grease purges at every joint.
  • Inspect jaw teeth and wear plates for chipping, cracking, or uneven wear.
  • Check the closing cylinder rod for scoring, pitting, or seal weep.
  • Inspect auxiliary hose routing and quick-disconnect couplers for chafing or leaks.
  • Cycle the jaw through full open and close travel and confirm it holds position without drifting.
  • Walk down mounting-bracket welds and pin bosses for visible cracking.
Every 250 h
  • Measure pin-to-bushing clearance at each pivot and compare against service limits.
  • Rotate or flip reversible teeth to expose fresh cutting edges.
  • Retorque mounting-bracket-to-stick and bracket-to-cylinder fasteners to spec.
  • Pull a fluid sample from the host excavator's auxiliary hydraulic circuit for analysis.
  • Inspect cylinder seal glands and rod seals for early-stage leak-down.
Every 500 h
  • Disassemble and inspect pivot bushings for out-of-round wear; replace any pin-and-bushing pair showing measurable play.
  • Dye-penetrant check mounting ears and top/bottom bracket plates for fatigue cracking.
  • Reseal cylinder glands showing seepage and inspect the rod surface for scoring.
  • Confirm the auxiliary hose kit sizing still matches the current host carrier.
  • Retorque all structural fasteners and record the readings.
Every 1,000 h
  • Replace all jaw pivot pins and bushings as a set regardless of individual wear reading.
  • Pull the cylinder for a full reseal and rod inspection; replace the rod if pitting exceeds polish-out limits.
  • Inspect the jaw casting for stress cracking at the tooth-mounting face.
  • Have a dealer certify mounting-bracket structural integrity, especially where prior weld repairs exist.
  • Confirm the host excavator's auxiliary relief and flow settings still match the tool's spec.
Every 2,000 h
  • Perform a full jaw-pivot rebuild: new pins, bushings, seals, and thrust washers throughout.
  • Rebuild or replace the closing cylinder complete, including piston seals and wear bands.
  • Repair or replace worn jaw halves and wear plates beyond weld-buildup limits.
  • Re-certify the mounting-bracket structure and replace it if cracking recurs at the same location.
  • Re-evaluate whether continued service is cost-effective versus replacement given the tool's age and duty cycle.
Every 4,000 h
  • Conduct a complete teardown and dimensional inspection of jaw halves, pivot bores, and cylinder trunnion mounts against OEM wear limits.
  • Replace the jaw casting or send it to a rebuild shop if the tooth-mounting face is worn beyond weld-repair tolerance.
  • Renew all bracket-to-carrier mounting hardware and verify coupler pin-boss dimensions.
  • Document cumulative pin, bushing, and cylinder replacement history to support a rebuild-versus-retire decision.

Servicing the VPC-40 beyond the schedule

Predictive maintenance and fluid analysis

Since the VPC-40 has no engine or onboard hydraulic system, predictive maintenance centers on the host excavator's auxiliary circuit and the tool's wear components. Sample the carrier's auxiliary hydraulic oil regularly for water, particulate, and viscosity shift, since jaw-closing shock loads on rebar can spike contamination faster than normal digging duty. Track pin-and-bushing clearance and cylinder rod condition over time rather than waiting for visible play, and log tooth wear rate to schedule tooth rotation before edges go thin.

Corrective and common repairs

Most VPC-40 repairs are pin, bushing, and cylinder work rather than powertrain fixes. Replace pins and bushings in pairs once play develops at a pivot; don't reuse a worn bushing with a new pin or vice versa. Reseal the closing cylinder at the first sign of rod weep or leak-down that lets the jaw drift open. Inspect mounting-bracket welds and pin bosses for cracking after any hard delink, and have a dealer weld-repair or replace a cracked bracket rather than running it.

Overhaul and rebuild points

A full VPC-40 rebuild centers on the jaw pivot, the closing cylinder, and the mounting bracket. Rebuild the pivot with new pins, bushings, seals, and thrust washers as a matched set rather than mixing new and worn parts. Send the cylinder out for a complete reseal, honing, or rod replacement if scoring exceeds polish-out limits. Re-certify the mounting bracket and boss welds structurally before returning the tool to demolition duty, since that structure carries the full crushing load.

Seasonal and environment servicing

Demolition debris and concrete dust are the VPC-40's main environmental threats, since dust and grit accelerate pin, bushing, and cylinder rod wear faster than normal digging dirt. Shorten the grease interval in wet, muddy, or dusty demolition conditions, and switch to a cold-weather-rated NLGI grease grade in freezing climates so grease still purges fully at each joint. Keep the exposed cylinder rod wiped and shielded from abrasive debris where possible, and clear packed debris from pivot points before greasing, not after.

VPC-40 attachments & work tools

Work-tool family

The VPC-40 is a Caterpillar-badged, Verachtert-built concrete pulverizer for excavators, a mid-size member of the VPC family that also includes the VPC-30, VPC-50, and VPC-60. It is a passive jaw tool with no engine, ECM, or fault-code system of its own.

Primary application

Single-jaw pulverizer for crushing reinforced concrete, separating rebar from aggregate, and secondary demolition sizing at ground level or from the boom. It is a pulverizer, not a shear or a grapple, though it shares the broader Cat/Verachtert demolition-processor lineage with those tool types.

Mounting and coupler

A pin-on mounting bracket pins directly to the excavator boom or stick linkage in place of the bucket. Fitment to a mechanical or hydraulic quick coupler depends on the coupler's pin spacing and weight rating for this size class; confirm compatibility with the carrier's specific coupler make and model before ordering.

Hydraulic requirement

Jaw open/close is driven by a hydraulic cylinder fed from the carrier's auxiliary (attachment) hydraulic circuit, not by an onboard power pack. The excavator needs stick-routed auxiliary lines and an in-cab auxiliary control valve; exact flow and pressure targets for this tool are not published and vary by carrier, so confirm the auxiliary circuit setting with the dealer or the tool's operation and maintenance manual before first use.

Carrier size class

The VPC-40 sits in the middle of its 30/40/50/60 family, sized for mid-size excavators heavier than the VPC-30's compact-carrier fit and lighter than the VPC-50/VPC-60's larger-carrier fit. No official carrier weight range is published for the VPC-40 specifically, so match carrier size to jaw weight and hydraulic capacity with your dealer.

Wear parts and jaw tips

The jaw set uses bolt-on, individually replaceable crusher teeth/tips rather than a welded edge, so worn tips can be swapped in the field without hot work. The bolt-on tooth pattern on this frame size is shared with several other Cat/Verachtert demolition-processor tools of similar size, though the jaw casting and mounting frame remain specific to the VPC-40.

Factory configuration and guarding

Standard configuration is a fixed (non-rotating) single jaw with bolt-on wear plates protecting the jaw body and pivot area; no rotator, tiltrotator, or dual-jaw (combi) option is documented for this specific model. Grease the pivot pins on the routine service interval since the tool has no other moving parts to maintain.

All VPC-40 assemblies by section

Every catalogued assembly group for the Caterpillar VPC-40. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Frame And Body
184-3501 Mounting Gp-Pulverizer
16***38Bracket Group-Mounting1
17***92Bracket Group-Mounting1
18***00Link Group1
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286-2438 Mounting Gp-Pulverizer
16***26Bracket Group-Mounting1
18***10Link Group1
28***37Bracket Group-Mounting1
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184-9850 Mounting Gp-Pulverizer
16***26Bracket Group-Mounting1
18***50Mounting Group-Pulverizer1
18***52Bracket Group-Mounting1
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171-1471 Mounting Gp-Pulverizer
16***54Bracket Group-Mounting1
17***78Link Group1
17***71Mounting Group-Pulverizer1
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171-2264 Mounting Gp-Pulverizer
16***71Bracket Group-Mounting1
17***64Mounting Group-Pulverizer1
17***65Bracket Group-Mounting1
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170-9030 Mounting Gp-Pulverizer
16***38Bracket Group-Mounting1
17***97Link Group1
17***30Mounting Group-Pulverizer1
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171-3082 Mounting Gp-Pulverizer
16***26Bracket Group-Mounting1
17***82Mounting Group-Pulverizer1
17***83Bracket Group-Mounting1
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171-1472 Mounting Gp-Pulverizer
16***54Bracket Group-Mounting1
17***96Link Group1
17***72Mounting Group-Pulverizer1
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169-3435 Mounting Gp-Pulverizer
16***35Mounting Group-Pulverizer1
16***36Bracket Group-Mounting1
16***37Link Group1
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169-4623 Mounting Gp-Pulverizer
16***23Mounting Group-Pulverizer1
16***24Bracket Group-Mounting1
16***25Link Group1
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169-3063 Mounting Gp-Pulverizer
16***63Mounting Group-Pulverizer1
16***68Bracket Group-Mounting1
16***69Link Group1
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185-1381 Mounting Gp-Pulverizer
16***24Bracket Group-Mounting1
16***26Bracket Group-Mounting1
18***81Mounting Group-Pulverizer1
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184-9851 Mounting Gp-Pulverizer
16***26Bracket Group-Mounting1
18***51Mounting Group-Pulverizer1
18***53Bracket Group-Mounting1
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185-7828 Mounting Gp-Pulverizer
16***26Bracket Group-Mounting1
17***83Bracket Group-Mounting1
18***28Mounting Group-Pulverizer1
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171-0723 Mounting Gp-Pulverizer
16***38Bracket Group-Mounting1
17***99Link Group1
17***23Mounting Group-Pulverizer1
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169-3150 Mounting Gp-Pulverizer
16***50Mounting Group-Pulverizer1
16***52Bracket Group-Mounting1
16***53Link Group1
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184-9819 Mounting Gp-Pulverizer
16***38Bracket Group-Mounting1
17***24Bracket Group-Mounting1
18***19Mounting Group-Pulverizer1
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170-8291 Mounting Gp-Pulverizer
16***38Bracket Group-Mounting1
17***91Mounting Group-Pulverizer1
17***92Bracket Group-Mounting1
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Service Equipment And Supplies
177-0154 Film Gp
14***36Film-Warning; (Flying Debris)2
14***69Film-Warning; (Alert)2
14***70Film-Warning; (Read Omm)2
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177-3829 Film Gp
14***36Film-Warning; (Flying Debris)2
14***69Film-Warning; (Alert)2
14***70Film-Warning; (Read Omm)2
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177-3828 Film Gp
14***36Film-Warning; (Flying Debris)2
14***69Film-Warning; (Alert)2
14***70Film-Warning; (Read Omm)2
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177-3827 Film Gp
14***36Film-Warning; (Flying Debris)2
14***69Film-Warning; (Alert)2
14***70Film-Warning; (Read Omm)2
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Work Tool Arrangement
189-2892 Pulverizer Ar-Mechanical
18***28Mounting Group-Pulverizer1
18***92Pulverizer Ar-Mechanical1
20***82Pulverizer Group1
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177-3789 Pulverizer Ar-Mechanical
17***23Mounting Group-Pulverizer1
17***89Pulverizer Ar-Mechanical1
20***81Pulverizer Group1
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189-2894 Pulverizer Ar-Mechanical
18***51Mounting Group-Pulverizer1
18***94Pulverizer Ar-Mechanical1
20***82Pulverizer Group1
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308-6546 Pulverizer Ar-Mechanical
20***82Pulverizer Group1
28***38Mounting Group-Pulverizer1
30***46Pulverizer Ar-Mechanical1
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177-3791 Pulverizer Ar-Mechanical
16***23Mounting Group-Pulverizer1
17***91Pulverizer Ar-Mechanical1
20***82Pulverizer Group1
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177-3788 Pulverizer Ar-Mechanical
17***91Mounting Group-Pulverizer1
17***88Pulverizer Ar-Mechanical1
20***81Pulverizer Group1
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177-3780 Pulverizer Ar-Mechanical
16***57Pulverizer Group1
17***64Mounting Group-Pulverizer1
17***80Pulverizer Ar-Mechanical1
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177-3782 Pulverizer Ar-Mechanical
17***72Mounting Group-Pulverizer1
17***82Pulverizer Ar-Mechanical1
20***34Pulverizer Group1
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177-3787 Pulverizer Ar-Mechanical
17***30Mounting Group-Pulverizer1
17***87Pulverizer Ar-Mechanical1
20***81Pulverizer Group1
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177-3784 Pulverizer Ar-Mechanical
17***71Mounting Group-Pulverizer1
17***84Pulverizer Ar-Mechanical1
20***34Pulverizer Group1
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177-3792 Pulverizer Ar-Mechanical
17***82Mounting Group-Pulverizer1
17***92Pulverizer Ar-Mechanical1
20***82Pulverizer Group1
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177-3779 Pulverizer Ar-Mechanical
16***63Mounting Group-Pulverizer1
17***79Pulverizer Ar-Mechanical1
20***80Pulverizer Group1
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177-3786 Pulverizer Ar-Mechanical
16***35Mounting Group-Pulverizer1
17***86Pulverizer Ar-Mechanical1
20***81Pulverizer Group1
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187-8749 Pulverizer Ar-Mechanical
18***81Mounting Group-Pulverizer1
18***49Pulverizer Ar-Mechanical1
20***82Pulverizer Group1
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177-3783 Pulverizer Ar-Mechanical
16***50Mounting Group-Pulverizer1
17***83Pulverizer Ar-Mechanical1
20***34Pulverizer Group1
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189-2893 Pulverizer Ar-Mechanical
18***50Mounting Group-Pulverizer1
18***93Pulverizer Ar-Mechanical1
20***82Pulverizer Group1
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189-2890 Pulverizer Ar-Mechanical
18***01Mounting Group-Pulverizer1
18***90Pulverizer Ar-Mechanical1
20***81Pulverizer Group1
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189-2891 Pulverizer Ar-Mechanical
18***19Mounting Group-Pulverizer1
18***91Pulverizer Ar-Mechanical1
20***81Pulverizer Group1
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Work Tools
169-3152 Bracket Gp-Mounting
16***52Bracket Group-Mounting1
16***55Bracket As1
16***56Pin; (251 mm)4
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171-2265 Bracket Gp-Mounting
16***73Pin; (124mm)4
17***65Bracket Group-Mounting1
17***67Bracket As1
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286-2437 Bracket Gp-Mounting
16***28Pin; (307mm)4
28***36Bracket As1
28***37Bracket Group-Mounting1
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169-4624 Bracket Gp-Mounting
16***24Bracket Group-Mounting1
16***27Bracket As1
16***28Pin; (307mm)4
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171-1474 Bracket Gp-Mounting
16***56Pin; (251 mm)4
17***74Bracket Group-Mounting1
17***76Bracket As1
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184-9853 Bracket Gp-Mounting
16***28Pin; (307mm)4
18***53Bracket Group-Mounting1
18***56Bracket As1
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169-3438 Bracket Gp-Mounting
09***48Nipple, Grease2
16***38Bracket Group-Mounting1
16***56Bracket As1
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169-3068 Bracket Gp-Mounting
16***68Bracket Group-Mounting1
16***72Bracket As1
16***73Pin; (124mm)4
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171-1473 Bracket Gp-Mounting
16***56Pin; (251 mm)4
17***73Bracket Group-Mounting1
17***75Bracket As1
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171-0724 Bracket Gp-Mounting
16***41Pin; (253mm)4
17***24Bracket Group-Mounting1
17***25Bracket As1
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169-3436 Bracket Gp-Mounting
16***36Bracket Group-Mounting1
16***40Bracket As1
16***41Pin; (253mm)4
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169-4626 Bracket Gp-Mounting
09***48Nipple, Grease2
16***26Bracket Group-Mounting1
16***43Bracket As1
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169-3154 Bracket Gp-Mounting
09***48Nipple, Grease1
16***92Pin1
16***54Bracket Group-Mounting1
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170-9031 Bracket Gp-Mounting
16***41Pin; (253mm)4
17***31Bracket Group-Mounting1
17***38Bracket As1
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170-8292 Bracket Gp-Mounting
16***41Pin; (253mm)4
17***92Bracket Group-Mounting1
17***93Bracket As1
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169-3071 Bracket Gp-Mounting
09***48Nipple, Grease1
16***71Bracket Group-Mounting1
16***91Bracket As1
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171-3083 Bracket Gp-Mounting
16***28Pin; (307mm)4
17***83Bracket Group-Mounting1
17***18Bracket As1
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184-9852 Bracket Gp-Mounting
16***28Pin; (307mm)4
18***52Bracket Group-Mounting1
18***55Bracket As1
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170-8278 Link Gp
09***48Nipple, Grease3
09***54Seal; (Id=79.85mm)4
16***58Bushing; (50mm)2
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185-3810 Link Gp
08***48Bearing-Sleeve; (120mm Lg)2
09***48Nipple, Grease3
16***59Bushing4
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169-4625 Link Gp
08***79Bearing; (Sleeve)2
09***48Nipple, Grease3
16***25Link Group1
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169-3437 Link Gp
09***48Nipple, Grease3
16***87Bushing2
16***37Link Group1
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188-9717 Link Gp
09***48Nipple, Grease3
16***59Bushing4
18***17Link Group1
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170-8297 Link Gp
08***48Bearing-Sleeve; (120mm Lg)2
09***48Nipple, Grease3
16***87Bushing2
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170-8299 Link Gp
09***48Nipple, Grease3
14***47Bearing-Sleeve2
16***87Bushing2
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170-8298 Link Gp
08***48Bearing-Sleeve; (120mm Lg)2
09***48Nipple, Grease3
16***87Bushing2
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184-9858 Link Gp
09***48Nipple, Grease3
16***59Bushing4
18***58Link Group1
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171-3084 Link Gp
09***48Nipple, Grease3
16***59Bushing4
17***84Link Group1
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169-3153 Link Gp
09***48Nipple, Grease3
16***53Link Group1
16***57Link As1
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184-9820 Link Gp
09***48Nipple, Grease3
14***47Bearing-Sleeve2
16***87Bushing2
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171-2266 Link Gp
09***48Nipple, Grease3
09***54Seal; (Id=79.85mm)4
16***03Bushing2
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169-3069 Link Gp
09***48Nipple, Grease3
09***54Seal; (Id=79.85mm)4
16***69Link Group1
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184-9857 Link Gp
09***48Nipple, Grease3
16***59Bushing4
18***57Link Group1
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184-3500 Link Gp
08***79Bearing; (Sleeve)2
09***48Nipple, Grease3
16***87Bushing2
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170-8296 Link Gp
09***48Nipple, Grease3
09***54Seal; (Id=79.85mm)4
16***58Bushing; (50mm)2
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202-4680 Pulverizer Gp
16***57Pulverizer Group1
17***27Film Group1
20***80Pulverizer Group1
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169-3434 Pulverizer Gp
09***48Nipple, Grease2
14***78Lockwasher4
16***88Plate-Lock; (170 mm)2
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202-2534 Pulverizer Gp
16***49Pulverizer Group1
17***54Film Group1
20***34Pulverizer Group1
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202-4681 Pulverizer Gp
16***34Pulverizer Group1
17***28Film Group1
20***81Pulverizer Group1
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169-4622 Pulverizer Gp
09***48Nipple, Grease2
14***78Lockwasher4
16***88Plate-Lock; (170 mm)2
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168-6857 Pulverizer Gp
09***48Nipple, Grease2
14***78Lockwasher4
16***57Pulverizer Group1
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202-4682 Pulverizer Gp
16***22Pulverizer Group1
17***29Film Group1
20***82Pulverizer Group1
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169-3149 Pulverizer Gp
09***48Nipple, Grease2
14***78Lockwasher4
16***79Tooth Group-Crusher1
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169-3079 Tooth Gp-Crusher
15***22Lockwasher14
16***79Tooth Group-Crusher1
16***90Tooth10
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169-3448 Tooth Gp-Crusher
15***22Lockwasher15
16***48Tooth Group-Crusher1
28***00Tooth15
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169-4634 Tooth Gp-Crusher
16***77Lockwasher14
16***34Tooth Group-Crusher1
16***42Tooth14
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VPC-40 serial number reference

The ID plate for this pulverizer is a stamped metal tag, typically riveted to the mounting bracket or frame near the pivot pins rather than on the jaw itself, matching Cat's convention for pulverizer work tools. It carries the model designation and a serial number formatted as a 3-letter prefix followed by a 5-digit sequence. Read the prefix as the production-range code and confirm the full number with your dealer for exact linkage and carrier fitment.

PrefixIdentifies
BGYEarliest confirmed production range for the VPC-40. Covers the first mounting-arrangement hardware for this size in the OEM parts catalog, including the base 'b' and 'c' linkage bracket variants.
BNJMid-production range for the VPC-40, covering a later mounting-arrangement and film-group hardware update in the OEM parts catalog.
BTCMid-to-late production range for the VPC-40, covering another mounting-arrangement and film-group update in the OEM parts catalog.
BWBLatest confirmed production range for the VPC-40, including the mounting arrangement built for Cat 345 excavators with 'F' and 'T' linkage and 345CL excavators with 'TB' linkage.

Frequently asked questions

What engine does the Cat VPC-40 use?

None. The VPC-40 is a passive work tool with no engine, ECM, or onboard power source of any kind. Its single jaw-closing cylinder runs entirely off the host excavator's auxiliary hydraulic circuit, so the tool's power comes from whatever carrier it is mounted on.

What is the VPC-40's operating weight?

Not published in available Cat or Verachtert literature for this specific size. It sits mid-family, heavier than the smaller VPC-30 and lighter than the larger VPC-50 and VPC-60, but no confirmed operating-weight figure exists for the VPC-40 itself; verify with a dealer using the tool's serial number before sizing mounting hardware or a carrier to it.

What replaced the Cat VPC-40?

No confirmed direct successor is documented. Cat's current pulverizer lineup covers similar secondary-demolition duty today, but no source ties a specific model to the VPC-40 as a formal replacement. The final BWB production range, built for Cat 345 and 345CL linkage, appears to be the tool's last documented configuration.

What VPC-40 owners discuss

Is the VPC-40 hard on an excavator's hydraulics compared with a shear or hammer?
General consensus for this class of single-cylinder pulverizer is that it's easier on a carrier's hydraulics than a rotating tool or a hammer: it needs only one double-acting auxiliary circuit and doesn't add the continuous shock loading a hammer does. Operators do note that closing on rebar-heavy slabs still spikes pressure at jaw closure, so relief and flow settings need to match the tool's spec sheet rather than whatever the carrier's aux circuit happens to be set at. Dedicated owner discussion naming the VPC-40 specifically is thin online; this reflects general experience with this class of pulverizer attachment rather than model-specific threads.
What jaw and tooth wear pattern do owners report, and how is it managed?
Teeth and jaw wear plates are the first things to go on any pulverizer of this type. Where the wear parts are reversible, owners flip or rotate them to run more cutting edges before condemning the set, roughly doubling usable life versus a one-sided design. Daily walk-around checks of tooth and plate condition are standard practice; parts worn to a thin edge or showing deep grooves get swapped, not built back up with weld, since surfacing hardened wear steel in the field is a poor fix. No VPC-40-specific wear-interval figures turned up in public discussion, so treat these as general pulverizer-class patterns rather than confirmed numbers for this model.
How much play at the pin and bushing is normal before it needs attention?
No VPC-40-specific threads address this directly, but the broader pinned-attachment consensus applies: some play is normal, but if a bushing can be worked in and out by hand, or a pin visibly rocks under load, it is overdue for replacement. Many shops deliberately spec the pin softer than the bushing so the pin sacrifices first, since it's the cheaper part to swap. Regular greasing slows wear but doesn't stop it, and the seals at the pin bore should be renewed at the same time as the bushing rather than reused.
Do cylinder seal leaks or rod damage come up as a common complaint on this type of pulverizer?
Light rod seepage after extended service is generally treated as a normal wear item on single-cylinder pulverizer attachments, not a defect, and the exposed rod is the part most exposed to debris scoring, which is why many designs shroud or armor it. What owners flag as a real problem is leak-down bad enough that the jaw drifts open on its own weight, or a rod showing visible pitting, since both accelerate further seal wear and affect how the jaw holds position mid-cycle. Have your dealer inspect any cylinder with rod scoring or noticeable leak-down before putting the tool back into demolition duty.
Does the mounting bracket or pin bosses crack over time, and what should be watched?
Across passive demolition attachments generally, the pin bosses and mounting ears carry the highest tensile and torsional load in the structure, and that's the area most commonly cited for fatigue cracking industry-wide. Recommended practice is a visual check of the boss welds and top/bottom plate at each service interval, and especially after any hard delink event that bends or cracks the bracket-to-cylinder connection, since a compromised mount is a load-path failure risk, not just a cosmetic issue. Have your dealer verify any suspected crack or prior weld repair at the mounting structure before returning the tool to service.
Will a VPC-40 hose kit and mounting set up on one excavator carrier work on a different one?
General guidance for this class of attachment is that hose routing, flow rate, pressure, and hose diameter all have to be matched to the specific carrier's auxiliary circuit; reusing a hose kit or plumbing sized for a different excavator model is repeatedly cited as a cause of overheating, sluggish jaw action, or early hose failure. Because it's a single double-acting circuit, the plumbing itself is simple, but the kit (hoses, couplers, mounting adapter and pins) is still matched to a given carrier class and serial number rather than being universal across the wider model family.
What should I check before buying a used VPC-40?
Start with jaw and tooth wear: look for thin edges, deep grooves, or uneven wear side to side. Check pin and bushing play at every pivot; a bushing that moves by hand or a pin that rocks under load both mean it's due for work. Cycle the cylinder through full travel and watch for seepage, rod scoring, or the jaw drifting open or shut on its own once you release the control. Look closely at the mounting ears and top plate for hairline cracks or old weld repairs, since that structure carries the entire crushing load. Confirm what carrier size and hydraulic circuit the tool was last set up for, since the hose kit and pin/bracket geometry are matched to a specific excavator class rather than universal. Have your dealer verify any suspected cracked weld or structural repair before committing to the purchase.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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