Caterpillarwork toolvibratory compactor

Caterpillar CVP16

Maintenance schedule, common problems & OEM parts breakdown

The CVP16 is a passive hydraulic vibratory plate compactor attachment, not a self-powered machine: it carries no engine, ECM, fuel tank, or cooling system and runs entirely on hydraulic flow supplied by its carrier. It mounts to mini hydraulic excavators in the 2.7-6 ton class through a pin grabber, dedicated hydraulic, or pin-lock coupler and needs 40-50 L/min (11-13 gpm) at a minimum operating pressure of about 13,000 kPa (1,885 psi) to produce its rated 16 kN (3,597 lb) impulse force at 2,200 bpm. The base plate measures 305 x 787 mm (12 x 31 in), and factory weight is listed at 150 kg (330.7 lb), though some equipment listings show figures up to roughly 216 kg (474 lb), likely reflecting bracket or coupler hardware included in the total. No dated production-year range or confirmed predecessor/successor model exists in available documentation; the CVP16 is treated as an ongoing, currently offered Cat attachment. It sits at the small end of Cat's vibratory plate compactor family, alongside the larger CVP28, CVP40, and CVP55 units built for bigger excavator and backhoe-loader classes.

Within that family, the CVP16 is the smallest and lightest unit, sized specifically to match the smallest compatible excavator bracket and hydraulic-kit standard that Cat also uses across its hammer line, so the same coupler and mounting hardware serve both breakers and compactors on one carrier. An optional bolt-on backfill blade extends the base unit for trench backfill work; features like the swivel plate and post/plate driver documented for other models in the family are not confirmed as available on the CVP16 itself. In the used and parts market, the CVP16 matters because it lets a mini-excavator owner do plate-compaction work, trench backfill, footing prep, and asphalt patch work, without buying or renting a dedicated walk-behind or ride-on roller. Because it shares coupler and bracket standards with Cat's hammer line, used units move easily between compact-equipment fleets, and parts demand concentrates on wear items such as isolator bushings, the base plate, coupler pins and bushings, and hydraulic hoses rather than on any powertrain component, since the attachment has none.

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 CVP16 specifications

Engine

Power source

No onboard engine. The CVP16 is a passive hydraulic attachment powered entirely by the carrier machine's hydraulic system. No engine model, displacement, cylinder count, or emissions tier applies.

Weights

Operating weight (factory spec sheet)	150 kg (330.7 lb)
Operating weight (varies by listing)	Some dealer/aggregator listings show 215 kg (474 lb) instead of the factory-sheet figure. This may reflect a mounting bracket or a different measurement basis — treat as varies by source/configuration and confirm with a current factory spec sheet for the exact bracket in use.
Shipping weight	Not separately published. Shipped as a single bolt-on unit; operating weight figure applies.
Base plate (ground) pressure	86.5 kPa (12.5 psi)

Dimensions

Base plate width (A)	305 mm (12 in)
Base plate length (B)	787 mm (31 in)
Overall height (C)	528 mm (20.8 in)
Working length (D)	607 mm (23.9 in)
Compaction area	0.19 m² (2.0 ft²)
Ground clearance / track gauge	Not applicable — passive attachment, no undercarriage or wheelbase of its own.

Performance

Impulse force	16 kN (3,597 lb)
Impact frequency	2,200 impacts per minute
Optimal hydraulic flow (from carrier)	40-50 L/min (11-13 gpm)
Minimum operating pressure	13,000 kPa (1,885 psi)
Carrier compatibility	Mini hydraulic excavators in the 2.7-6 ton class. (Larger siblings in the same family cover mini excavators up to 13 ton and select backhoe loaders, but those figures belong to the larger models, not the CVP16.)
Travel speed / gradeability	Not applicable — the compactor has no independent travel drive; mobility and grade performance are functions of the carrier machine.

Service capacities (summary)

Fuel tank	Not applicable — no engine on the attachment.
Hydraulic system	Runs off the carrier machine's hydraulic circuit; no separate reservoir capacity is published for the attachment itself.
Engine oil	Not applicable — no engine.
Cooling system	Not applicable — no engine.
Internal drive/gearbox oil	Factory literature notes a rear centerline plug for simplified oil changes on the internal vibratory drive while the compactor stays mounted, but does not publish a fill capacity figure.

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

CVP16 fluids & capacities

System	Capacity	Recommended fluid
Vibrator/eccentric bearing case (oil-bath)	Not published in available dealer literature. Serviced through a rear centerline drain/fill plug; oil can be changed with the compactor still mounted. Case is a sealed oil-bath design, not a grease-lubricated bearing.	Exact product name and viscosity grade are not published for this attachment in the sources checked. Verify the correct compactor bearing/gear oil against the operation and maintenance manual or with your dealer before use. No climate/viscosity split is documented for this compartment.
Hydraulic system (attachment drive)	No dedicated reservoir on the attachment — the CVP16 is hydraulically driven entirely off the host carrier's hydraulic system. Required flow 40-50 L/min (11-13 gpm) at a minimum operating pressure around 13,000 kPa (1,885 psi); a built-in flow/pressure control valve protects the motor from the host machine's circuit.	Use the host machine's own manual-specified hydraulic oil (grade/brand per that carrier's fluid recommendations); the CVP16 itself carries no separate hydraulic fluid spec.
Grease points (mounting pins/coupler pivots)	Spec only — no fill capacity applies; lubricate per grease-fitting zerk until purge is visible at the joint.	A Cat moly-EP multipurpose grease is the standard recommendation for pin and linkage grease points on Cat hydraulic work tools/attachments; no distinct CVP16-specific grease callout found.

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

Caterpillar CVP16 maintenance schedule

Service interval	Tasks
Every 10 h	Inspect hydraulic hoses, fittings, and quick-couplers for leaks, cuts, or abrasion before each shift. Check coupler pin engagement and lock mechanism for proper seating on the carrier. Inspect base plate mounting bolts and frame fasteners for looseness; retorque if movement is felt. Visually inspect rubber isolator bushings for cracking, tearing, or bulging. Clean packed soil and debris from around the base plate and isolator mounts. Wipe grease fittings and check coupler pin/bushing lubrication; top up if dry.
Every 250 h	Grease coupler pins and bushings fully, purging old grease until fresh grease appears at the joint. Inspect isolator bushings for wear-pattern changes such as uneven compression or separation from the housing; replace if degraded. Check eccentric bearing case oil level at the rear centerline plug without unmounting the compactor. Inspect base plate welds and rib-to-plate junctions for stress cracking. Torque-check all base plate and frame fasteners to factory specification.
Every 500 h	Drain and refill eccentric bearing case oil through the rear centerline plug. Inspect coupler pins and bushings for measurable wear or play; replace worn pins before clearance becomes excessive. Inspect hydraulic hose routing and jumper lines for chafing against the frame or carrier arm. Check isolator bushing bolt torque and mounting bracket condition.
Every 1,000 h	Inspect eccentric bearing case oil for metal particles or discoloration as an indicator of internal bearing wear. Replace isolator bushings as a set if any show cracking, softening, or permanent deformation. Inspect base plate thickness at high-contact leading and trailing edges against factory wear limits. Inspect hydraulic hoses for surface cracking or reduced flexibility and replace as needed.
Every 2,000 h	Remove the base plate and inspect the eccentric shaft and bearing assembly for radial play; rebuild if clearances exceed factory limits. Inspect coupler bracket and pin bores for elongation; bush or replace bores worn beyond tolerance. Reseal the bearing case regardless of visible leakage given cumulative vibration fatigue on gaskets. Assess the base plate for cumulative wear or warping and plan replacement if thickness or flatness is out of tolerance.
Every 3,000 h	Rebuild or replace the eccentric bearing and shaft assembly. Replace all isolator bushings and mounting hardware as a matched set. Replace the base plate assembly if worn past factory limits or previously repaired by welding. Replace all hydraulic hoses and fittings on the compactor as a preventive set regardless of individual condition.

Servicing the CVP16 beyond the schedule

Predictive Maintenance & Fluid Analysis

The CVP16 has no engine oil to sample; its only onboard lubricant is eccentric bearing case oil, drained and refilled through the rear centerline plug without unmounting the unit. Check that oil's color and metal content at each interval as an early bearing-wear signal. Since all power comes from the carrier's hydraulic circuit, hydraulic fluid cleanliness on the host machine matters more than any fluid analysis performed on the attachment itself. Watch hose condition, coupler wear, and isolator bushings for early cracking before a small fault cascades into the base plate or eccentric case.

Corrective & Common Repairs

Most CVP16 repairs trace to three wear points: base plate weld cracking from sustained impulse loading, isolator bushing failure that lets vibration transmit into the carrier arm instead of the ground, and coupler pin or bushing wear that shows up as play at the mounting bracket. Weld cracks near the plate ribs call for gouge-and-reweld repair, or plate replacement once cracking becomes extensive. Isolator bushings and coupler pins are bolt-in wear items; replace them as matched sets rather than individually to keep vibration isolation and coupler fit even across the base plate.

Overhaul & Rebuild Points

Overhaul on the CVP16 centers on the eccentric bearing and shaft that generate its 16 kN impulse at 2,200 bpm. Persistent metal contamination in the bearing case oil, or measurable shaft play, signals a rebuild is due, requiring the housing to be split and bearings, seals, and the shaft replaced as needed. Base plate replacement is the other major rebuild decision, once wear or repeated weld repair pushes plate thickness or flatness past factory limits. Reseal the housing completely during any rebuild, since constant vibration fatigues gaskets even without visible leakage.

Seasonal & Environment Servicing

Cold weather affects the CVP16 through the carrier, not the tool itself: warm hydraulic oil to operating temperature before applying full flow, since cold, viscous oil below the 40-50 L/min optimal range under-drives the eccentric and lugs the impulse. Wet, abrasive soil and demolition rubble accelerate base plate edge wear and isolator bushing fatigue; rinse packed mud and grit from around isolators and coupler pins after each use in these conditions. In freeze-thaw regions, confirm hoses and fittings have not stiffened or cracked before startup.

CVP16 common service parts

Part number	Part	Notes
212-0787	Cartridge As-Logic Element	Scheduled service item	Check fitment →

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CVP16 fault codes & troubleshooting

Code	Meaning	Likely cause	What to do
No CVP16-specific code	Cat documentation for the CVP16 plate compactor lists no CID/FMI or SPN/FMI diagnostic codes for the attachment itself.	The CVP16 has no engine, ECM, or onboard electronics; it is a passive hydraulic implement driven entirely by the carrier excavator's auxiliary circuit.	Treat any fault as a carrier-machine issue: check the carrier's own hydraulic and electrical fault code display rather than looking for a compactor-side code.
Carrier low hydraulic flow/pressure warning (varies by carrier model)	Carrier excavator senses auxiliary/high-flow circuit pressure or flow outside the range needed to drive an attachment like the CVP16.	Auxiliary hydraulic flow/pressure on the host machine not configured for the CVP16's required range (roughly 40-50 L/min and around 13,000 kPa, varies by carrier and configuration), a restricted or leaking quick-coupler line, or worn carrier pump.	Verify carrier auxiliary circuit is set to the flow/pressure specified for the CVP16 at dealer setup, inspect couplers and hoses for leaks or blockage, and read the carrier's own diagnostic display for the exact code before assuming an attachment fault.
Carrier auxiliary hydraulic solenoid/valve fault (carrier-side, model-dependent)	Carrier's electro-hydraulic control reports a fault on the auxiliary solenoid or valve circuit used to route flow to a work tool.	Wiring or solenoid issue on the carrier's auxiliary circuit, not on the CVP16 itself since the attachment has no electrical connection to the carrier.	Diagnose on the carrier machine using its own service manual and dealer diagnostic tooling; confirm the CVP16's hydraulic couplers and lines are intact and not the source before carrier-side electrical troubleshooting.

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

CVP16 attachments & work tools

Carrier machine compatibility

CVP16 is a vibratory plate compactor work tool, not a standalone machine. It mounts to Cat mini hydraulic excavators in the 2.5 to 6 metric ton class, spanning the full mini excavator line offered at the time of catalog.

Coupler and mounting system

Uses the same bracket family as Cat's B and H model hydraulic hammers. Mounting options include pin-on, pin grabber, pin lock, CW quick-coupler, and S-type connections, plus dedicated hydraulic couplers for faster tool changes.

Hydraulic requirements

Runs on a single auxiliary hydraulic circuit with no carrier modification needed. Optimal flow is cited around 10 gpm (38 L/min), with dealer literature giving a broader working range of roughly 10-13 gpm (38-50 L/min). Minimum operating pressure varies by source, from about 1,600 psi (11,000 kPa) up to 1,900-2,500 psi (13,000-17,000 kPa) depending on configuration; confirm against the specific carrier's aux-circuit rating before deployment.

Companion attachments and factory options

An optional bolt-on backfill blade (front or rear mounted) lets the operator level backfill while compacting in the same pass. A manual swivel plate option is also offered for angled compaction along trench walls and confined spaces.

Performance and physical specs (class reference)

Impulse force is approximately 16 kN (roughly 3,600-3,650 lbf) at 2,200 impacts per minute, with base plate pressure around 12.5-12.8 psi (86-88 kPa). Unit weight and plate length vary across documentation sources — some list about 150 kg (331 lb) with a 305 x 787 mm (12 x 31 in) plate, others list about 216 kg (476 lb) with a 305 x 610 mm (12 x 24 in) plate — treat as varies by configuration/documentation series and verify against the specific unit's spec sheet.

Service and guarding notes

A rear centerline drain plug allows oil changes without removing the compactor from the carrier. Solid rubber isolator bushings should be inspected regularly for cracking, and an axle bolt installation is recommended for trench-box or extraction-type duty to protect the isolators from added stress.

All CVP16 assemblies by section

Every catalogued assembly group for the Caterpillar CVP16. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Hydraulic System

231-4300 Fitting Gp-Hydraulic

21***93	Hose As	2
21***20	Lines Group-Hydraulic	1
23***00	Fitting Group-Hydraulic	1
3K***60	Seal Pilot Manifold On; Seal To Boom Check Valve Drain	2

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213-0472 Lines Gp-Connecting

1P***04	Seal - Rectangular (45mm Dia)	2
1P***67	Flange-Half (43.31 mm Id)	4
21***72	Lines Group-Connecting	1
25***86	Hose As	2

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212-0785 Lines Gp-Connecting

21***85	Lines Group-Connecting	1
21***19	Hose As	2
5K***90	Seal-To Hydraulic Cooler Inlet Port	2
6V***35	Connector-Seal; (1- 5/16-12)	2

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211-8189 Lines Gp-Connecting

10***01	Fitting; (Quick Disconnect, Female)	1
10***06	Fitting; (Quick Disconnect, Male)	1
21***89	Lines Group-Connecting	1
21***96	Hose As	2

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211-8195 Lines Gp-Connecting

1P***04	Seal - Rectangular (45mm Dia)	2
1P***67	Flange-Half (43.31 mm Id)	4
21***95	Lines Group-Connecting	1
21***88	Hose As	2

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256-0045 Lines Gp-Connecting

21***22	Hose As	2
25***45	Lines Group-Connecting	1
5K***90	Seal-To Hydraulic Cooler Inlet Port	6
6V***84	Elbow-90 Deg Blkh	2

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255-8487 Lines Gp-Connecting

21***96	Hose As	2
25***87	Lines Group-Connecting	1
5K***90	Seal-To Hydraulic Cooler Inlet Port	4
6V***16	Connector-Seal; (1- 5/16-12)	2

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214-4733 Lines Gp-Hydraulic

03***21	Ring-Back-Up	1
09***32	Seal-O-Ring (Id=28.24mm)	1
16***49	Seal-O-Ring; (12.42mm Id)	1
16***54	Seal-O-Ring	1

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213-1820 Lines Gp-Hydraulic

21***20	Lines Group-Hydraulic	1
21***34	Hose As	2
2S***78	Seal-O-Ring (Id=37.47mm)	2
3E***26	Elbow-90 Degree	2

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222-3779 Manifold Gp-Control

22***79

Manifold Group-Control

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205-9395 Manifold Gp-Control

03***21	Ring-Back-Up	1
09***32	Seal-O-Ring (Id=28.24mm)	1
16***49	Seal-O-Ring; (12.42mm Id)	1
16***54	Seal-O-Ring	1

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207-2309 Manifold Gp-Control

03***21	Ring-Back-Up	1
09***32	Seal-O-Ring (Id=28.24mm)	1
16***49	Seal-O-Ring; (12.42mm Id)	1
16***54	Seal-O-Ring	1

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212-3440 Manifold Gp-Control

03***21	Ring-Back-Up	1
1H***23	Packing,Preformed Part Of Kit P/N 5r***25	1
21***40	Manifold Group-Control	1
22***38	Valve Group-Check; (Parking Brake Oil)	1

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Work Tools

212-3450 Blade Gp-Compactor

21***50	Blade Group-Compactor	1
21***66	Blade As	1
21***24	Plate	2
3E***62	Nut-Hard-Self Lock; (3/4unc)	6

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212-0789 Blade Gp-Compactor

21***89	Blade Group-Compactor	1
21***90	Blade As	1
21***24	Plate	2
3E***62	Nut-Hard-Self Lock; (3/4unc)	6

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222-6443 Blade Gp-Compactor

0S***79	Bolt 5.08 cm(2 In.) Long	2
0S***03	Bolt,Machine Fuel Pump Drive Gear Mounting	2
22***43	Blade Group-Compactor	1
22***02	Plate	1

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211-8200 Blade Gp-Compactor

21***00	Blade Group-Compactor	1
21***79	Blade As-Straight	1
21***23	Plate	2
6V***87	Locknut; (M12x1.75-Thd)	6

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259-1763 Bracket Gp-Mounting

22***31	Bracket As	1
25***63	Bracket Group-Mounting	1
6V***76	Nut-Lock; (M24 X 3.0)	8
7X***54	Bolt; (M24x3.0x110mm)	8

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259-1760 Bracket Gp-Mounting

17***71	Bracket As	1
18***20	Locknut; (M20x2.5-Thd)	8
25***60	Bracket Group-Mounting	1
8T***23	Washer-Plated; (22x35x3.5-mm Thk)	16

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112-5537 Bracket Gp-Mounting

11***04	Bracket As	1
11***37	Bracket Group-Mounting	1
6V***76	Nut-Lock; (M24 X 3.0)	10
7Y***71	Plate	2

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259-1768 Bracket Gp-Mounting

17***74	Bracket As	1
25***68	Bracket Group-Mounting	1
6V***76	Nut-Lock; (M24 X 3.0)	8
7X***54	Bolt; (M24x3.0x110mm)	8

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7q-8466 Bracket Gp-Mounting

16***58	Bracket As	1
7Q***66	Bracket Group-Mounting	1
7X***54	Bolt; (M16x2x70-mm)	12
7X***64	Bolt; (M20x2.5x90-mm)	8

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129-1545 Bracket Gp-Mounting

12***45	Bracket Group-Mounting	1
12***46	Bracket As	1
6V***76	Nut-Lock; (M24 X 3.0)	10
7X***54	Bolt; (M24x3.0x110mm)	10

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259-1767 Bracket Gp-Mounting

20***54	Bracket As	1
25***67	Bracket Group-Mounting	1
6V***76	Nut-Lock; (M24 X 3.0)	8
7X***54	Bolt; (M24x3.0x110mm)	8

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259-1762 Bracket Gp-Mounting

17***73	Bracket As	1
25***62	Bracket Group-Mounting	1
6V***76	Nut-Lock; (M24 X 3.0)	8
7X***54	Bolt; (M24x3.0x110mm)	8

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226-2797 Bracket Gp-Mounting

22***97	Bracket Group-Mounting	1
22***96	Bracket As	1
8T***31	Nut; (M20x2.5-Thd)	8
8T***41	Bolt-Plt; (M20 X 2.5 X 70)	8

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3q-7609 Bracket Gp-Mounting

16***57	Bracket As	1
3Q***09	Bracket Group-Mounting	1
7X***54	Bolt; (M16x2x70-mm)	12
8T***23	Washer-Plated; (22x35x3.5-mm Thk)	16

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112-4833 Bracket Gp-Mounting

11***33	Bracket Group-Mounting	1
11***36	Bracket As	1
6V***76	Nut-Lock; (M24 X 3.0)	10
7Y***71	Plate	2

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123-3343 Bracket Gp-Mounting

12***43	Bracket Group-Mounting	1
12***44	Bracket As	1
6V***76	Nut-Lock; (M24 X 3.0)	10
7X***54	Bolt; (M24x3.0x110mm)	10

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3q-7608 Bracket Gp-Mounting

16***56	Bracket As	1
3Q***08	Bracket Group-Mounting	1
7X***54	Bolt; (M16x2x70-mm)	12
7X***64	Bolt; (M20x2.5x90-mm)	8

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259-1759 Bracket Gp-Mounting

18***20	Locknut; (M20x2.5-Thd)	4
24***57	Bracket As	1
25***59	Bracket Group-Mounting	1
8T***23	Washer-Plated; (22x35x3.5-mm Thk)	8

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192-4211 Bracket Gp-Mounting

19***11	Bracket Group-Mounting	1
19***92	Bracket As	1
7X***54	Bolt; (M16x2x70-mm)	12
8T***23	Washer-Plated; (22x35x3.5-mm Thk)	16

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112-4831 Bracket Gp-Mounting

11***31	Bracket Group-Mounting	1
11***42	Bracket As	1
6V***76	Nut-Lock; (M24 X 3.0)	10
7Y***71	Plate	0

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219-0667 Bracket Gp-Mounting

21***67	Bracket Group-Mounting	1
21***68	Bracket As	1
7X***54	Bolt; (M16x2x70-mm)	12
8T***23	Washer-Plated; (22x35x3.5-mm Thk)	16

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253-3268 Bracket Gp-Mounting

25***68	Bracket Group-Mounting	1
25***57	Bracket As	1
8T***23	Washer-Plated; (22x35x3.5-mm Thk)	8
8T***31	Nut; (M20x2.5-Thd)	4

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112-5850 Bracket Gp-Mounting

11***50	Bracket Group-Mounting	1
11***09	Bracket As	1
6V***76	Nut-Lock; (M24 X 3.0)	10
7Y***71	Plate	2

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305-4984 Bracket Gp-Mounting

18***62	Hose As	1
20***88	Isolator	4
20***90	Frame As	1
20***91	Compactor As	1

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259-1753 Bracket Gp-Mounting

17***68	Bracket As	1
18***20	Locknut; (M20x2.5-Thd)	4
25***53	Bracket Group-Mounting	1
8T***23	Washer-Plated; (22x35x3.5-mm Thk)	8

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128-4341 Bracket Gp-Mounting

12***41	Bracket Group-Mounting	1
17***39	Bracket As	1
6V***76	Nut-Lock; (M24 X 3.0)	10
7Y***71	Plate	2

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205-5902 Compactor Gp-Vibratory

0S***29	Bolt (1" Long)	8
19***36	Seal; (85.6mm Od)	1
1J***76	Seal-O-Ring; (202.79mm Id)	1
20***02	Compactor Group-Vibratory	1

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205-5901 Compactor Gp-Vibratory

1K***70	Nut (National Coarse)	32
1P***77	Flange-Half (For Tilt Ports On Valve)	8
20***96	Frame As	1
20***97	Compactor As	1

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222-3780 Compactor Gp-Vibratory

22***80	Compactor Group-Vibratory	1
7X***65	Bolt; (M20x2.5x100-mm)	2
8T***31	Nut; (M20x2.5-Thd)	2
8T***39	Washer; (6.0mm Thk)(M21.5x6x45mm)	2

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205-5900 Compactor Gp-Vibratory

1K***70	Nut (National Coarse)	32
1P***76	Flange-Half (Hose To Pump); Flange-Half (32.54mm Bore)	4
1P***77	Flange-Half (For Tilt Ports On Valve)	4
20***93	Frame As	1

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230-8791 Plate Gp-Stop

15***17	Cap-Dust	1
15***18	Cap-Dust	1
15***94	Coupler As-Quick Disconnect; (Female)(Quick Disconnect)	1
15***95	Fitting As; (Quick Disconnect, Male)	1

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CVP16 serial number reference

The PIN plate is riveted or bolted to the compactor's top frame/mounting bracket, near the hydraulic motor housing or the quick-coupler plate — since the CVP16 has no engine, there is no separate engine-serial tag to cross-check. Read the first three characters as the plant/model prefix (letters, e.g. A1E) and the digits following as the sequential unit number within that prefix.

Prefix	Identifies	Notes
A1E	CVP16 vibratory plate compactor, base/only known series	Cat parts manual coverage begins at A1E1-and-up for this attachment, and the online Cat parts catalog ties this prefix specifically to the CVP16 product line, separate from the CVP40/CVP75/CVP110 siblings covered in the same combined manual. Multiple real used-unit listings carry A1E-prefixed serials. No engine or ECM; it is a passive hydraulic vibratory plate compactor driven off the carrier's auxiliary hydraulics. No second prefix or region-specific series found for this model.

Frequently asked questions

What powers the Cat CVP16?

The CVP16 has no engine of its own. It runs entirely on hydraulic flow supplied by the carrier excavator, needing 40-50 L/min (11-13 gpm) at a minimum operating pressure of about 13,000 kPa (1,885 psi) to generate its 16 kN (3,597 lb) impulse force at 2,200 bpm.

What is the CVP16's operating weight?

Factory specification lists the CVP16 at 150 kg (330.7 lb). Some secondary equipment listings show figures up to about 216 kg (474 lb), likely reflecting mounting bracket or coupler hardware included in the total, so treat the higher figure as configuration-dependent rather than a separate model weight.

What replaced the Cat CVP16?

No documented successor exists. The CVP16 remains a current model in Cat's vibratory plate compactor lineup, sized for 2.7-6 ton mini excavators, alongside the larger CVP28, CVP40, and CVP55 attachments built for bigger carrier classes.

What CVP16 owners discuss

What hydraulic flow and pressure does the CVP16 need from the carrier, and what happens if it's mismatched?

The CVP16 is rated for roughly 10-12 gpm (38-45 L/min) of auxiliary flow on a 2.5-6 metric ton mini excavator. Running it on a carrier below that range starves the motor and the plate loses striking force. Running it on a carrier with excess flow, or with relief pressure set too high, accelerates motor seal and isolator wear. Confirm the carrier's rated auxiliary flow and relief setting match the tool's spec plate before hooking up. Have your dealer verify the carrier's relief valve setting if compaction feels weak or the tool runs hot.

What wears out first, the isolator bushings or the internal eccentric bearing?

Owners consistently report the rubber isolator mounts, the pads connecting the top frame to the vibrating base, wear out first, especially with back-to-back multi-day use where the rubber tears or goes soft. Several report replacing the isolator rubber more than once over the tool's service life, well before any bearing symptoms appear. Bearing wear shows up later, as excess play felt when the base plate is rocked by hand with the tool off the ground, or as a growl or knock once it's spinning up to speed.

Is base plate cracking a known issue on hydraulic plate compactors like the CVP16?

Cracking at the base plate welds is a recognized wear pattern on hydraulic plate compactors as a class of tool, not something specific to one brand. It is driven by continuous high-frequency shock loading at the weld toe, made worse by compacting on rocky or broken ground, letting the plate strike debris, or running past the recommended duty cycle without a cool-down period. Fine hairline cracking near the frame-to-plate weld is the first sign, ahead of any visible bent plate or gouging. Have your dealer verify any suspected cracking with a proper inspection before returning the tool to service.

Does running a plate compactor wear out the excavator's own coupler pins and bushings?

Yes, that is a common owner observation. The constant high-frequency vibration transmitted back through the coupler accelerates wear at the carrier's own quick-coupler pins and bushings faster than normal digging duty would. Check coupler pin-to-bushing clearance more often on machines that see regular compactor use, and grease the coupler pivot points before and after each compaction job.

How does the CVP16 protect the excavator's boom and stick from vibration damage, and can that protection fail?

The isolator mounts are angled so boom-down pressure loads them mainly in compression rather than shear, which is what gives the rubber a useful working life instead of tearing quickly. Once those isolators go soft, split, or bottom out under load, vibration that should stay in the tool starts transmitting into the stick and boom pins, showing up as faster pin and bushing wear and a rougher feel through the cab. Do not keep running the tool with visibly collapsed or torn isolators. Have your dealer verify isolator condition and check stick and boom pin wear if vibration seems to be reaching the cab.

Are there any electrical, sensor, or motor quirks to watch for on the CVP16?

No, the CVP16 has no engine, ECM, or onboard electrical system of its own; it runs entirely off the carrier's hydraulics, so there is nothing analogous to an engine or sensor fault to track. Reported problems trace back to the hydraulic interface instead: worn or cross-threaded coupler faces that leak flow and reduce impact force, and hoses routed too tight against the stick that chafe through faster under constant vibration than a bucket's hoses would. Inspect hose routing and the coupler pin and bushing fit at every hookup.

What should I check before buying a used CVP16?

Rock the base plate by hand, with the tool off the carrier if possible, to feel for play in the eccentric bearing; looseness there points to an expensive internal rebuild. Inspect the base plate itself for cracked welds, gouging, or excessive weld build-up from prior repairs. Check the isolator rubber mounts for tearing, splitting, or a mushy, over-compressed feel, since they double as the tool's main protection for the carrier's boom. Look over the coupler pins and bushings for egg-shaped wear, and check the hydraulic hoses for cracking, abrasion, or weeping fittings. Ask what flow and pressure the tool was run at, since operation above its rated flow accelerates wear across all of the above. Have your dealer verify bearing play and isolator condition on a test hookup before purchase.

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

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