Caterpillar G130B
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar G130B is a Contractors' Grapple, a mechanical, pin-mounted excavator work tool rather than a self-powered machine. It has no engine, ECM, transmission, or undercarriage of its own; a single hydraulic cylinder opens and closes its two-over-three tine jaw, drawing all power from the host excavator's auxiliary hydraulic circuit. Operating weight runs about 2332 kg (5130 lb), with a fixed jaw width near 1260 mm (49.6 in) and a maximum jaw opening of about 3223 mm (126.9 in). The tool is sized for medium hydraulic excavators in the 320-330 class, pinning to C, CB, D, or DB-linkage sticks depending on carrier generation, and mounts pin-on or through a pin-grabber coupler without modification. It carries the GCN serial prefix and sits in a shared Contractors' Grapple lineup alongside the G107B, G112B, G115B, G120B, G125B, G145B, G165B, and G185B, each scaled and prefixed for a different excavator size class.
Across this lineup the letter suffix and linkage code, not an engine or capacity change, mark what is new: Caterpillar issues the same grapple frame in different C/CB/D/DB pin-group configurations so one tine geometry can be pinned to successive generations of 320/325/330-class stick linkage as excavator carriers update. Because the G130B has no powertrain or electronics to fail, its condition in the used and parts market rides almost entirely on three points: remaining AR400 tine-tip material, pivot pin and bushing play, and cylinder seal condition. Its broad fit across a long-running excavator class keeps it in steady circulation on demolition and scrap-sorting sites, and it shows up regularly on the used-attachment market as a lower-cost alternative to a new grapple once buyers confirm those wear points are within service limits.
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 G130B specifications
Engine
| Powertrain | Not applicable. The G130B is a mechanical Contractors' Grapple work tool, a passive excavator attachment with no engine, hydraulic pump, or ECM of its own. It draws hydraulic power from the host excavator's circuit. |
Weights
| Operating weight | 2332 kg (5130 lb) |
Dimensions
| Fixed jaw width | 1260 mm (49.6 in) |
| Maximum jaw opening | 3223 mm (126.9 in) |
| Tine configuration | Two-over-three tine layout (two tines on the upper jaw, three on the lower jaw), wide-spaced for working-area visibility |
| Wear plate thickness | 40 mm (1.57 in) |
| Wrapper thickness (inner and outer) | 20 mm (0.79 in) each |
Performance
| Mounting | Pin-on or pin-grabber-coupler mounting, usable either way without modification |
| Base machine compatibility | Sized for Cat medium hydraulic excavators in the 320-330 class. Documented linkage references vary by source and configuration (325D CB-linkage cited on some documentation; broader 320-336 class C/D/E-series compatibility cited on others) - confirm exact linkage code (C, CB, D, DB) against the host excavator before ordering. |
| Frame construction | Armored, box-type frame in AR400 abrasion-resistant steel with a slightly curved lower jaw for improved loading and debris penetration; tine tips are replaceable and flush-mounted with the inner wrapper |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
G130B fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Pivot pins and bushings (grease) | Not a filled reservoir; applied via grease fitting until purge at each service interval, no volume specified in Cat literature for this attachment | Cat multipurpose grease, NLGI 2 with moly additive (Cat Prime Application Grease or equivalent EP/moly grease); no viscosity-by-climate split published, single all-season grease grade |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar G130B maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the G130B beyond the schedule
Predictive Wear Monitoring & Grease Condition
On the G130B the only fluid to track is grease at the jaw pivots and cylinder pin. Check grease purge color and consistency at each fitting; contaminated or metallic-flecked grease signals advancing bushing wear before play is measurable by hand. Log tine-tip wear-material thickness and cylinder close-cycle time at each interval. A slowing close cycle is the earliest sign of internal cylinder seal bypass, letting you schedule a reseal before the grapple loses clamping force in service.
Corrective & Common Repairs
Most G130B repairs trace to three parts: tine tips, pivot bushings, and the single actuating cylinder. Replace AR400 tine tips once wear material reaches the service limit rather than letting the tine body itself wear through. Loose or misaligned jaws usually mean elongated pin bores; rebush or oversize the pin rather than running it loose. A jaw that closes slowly or creeps shut under load points to worn cylinder seals; reseal or exchange the cylinder before the tool drops a load.
Overhaul & Rebuild Points
Because the G130B has no engine or transmission to overhaul, rebuild work concentrates on the jaw pivot assembly and the frame itself. At major overhaul, replace pins, bushings, and retainers as a matched set rather than fitting new pins into worn bores. Inspect welds at the jaw roots and mounting ears for fatigue cracking, common on grapples run hard in demolition and scrap-sorting duty, and have any crack repaired by a qualified welder before the tool returns to work.
Seasonal & Environment Servicing
The G130B has no coolant or fuel system to winterize, so seasonal care centers on grease and corrosion protection. In cold climates, confirm pin and bushing grease stays pumpable at low temperature so pivots still get lubricated at shift start. Before extended idle storage, purge fresh grease into every fitting, retract and coat the exposed cylinder rod to prevent pitting, and store the tool off bare ground to limit rust at the frame and mounting ears.
G130B attachments & work tools
Product family and role
The G130B is a Contractors' Grapple, a mechanical tine-type demolition and sorting attachment, not a machine. It belongs to the same catalog family as the G107B, G112B, G115B, G120B, G125B, G145B, G165B and G185B contractor grapples, which share a common work-tool manual and pin-group parts structure.
Excavator class / mounting compatibility
The G130B is sized for medium hydraulic excavators in the 320D-330D class range, mounting in place of a bucket on the stick end. Fitment follows the excavator's linkage family rather than a universal coupler, so the grapple must match the stick's pin spacing and pin diameter for that model/series.
Linkage / stick configuration options
Because 320/325/330-class sticks were built with more than one linkage geometry across C and D-series updates, Caterpillar issues linkage-specific pin-group kits (documented variants include C-, CB-, D- and DB-type pin groups within the Contractor Grapples family) so the same grapple frame can be pinned to different stick generations. Exact linkage-to-serial-prefix pairing specific to the G130B beyond this family-level listing is not independently confirmed.
Tine / jaw configuration
The grapple uses a two-over-three tine arrangement (two upper tines closing against three lower tines) with wide tine spacing for operator visibility into the grab zone. Tine tips are abrasion-resistant AR400 steel, replaceable, and flush-mounted with the inner wrapper for wear service.
Capacity for size class
Reported jaw opening is approximately 3223 mm (126.9 in) with an attachment weight near 2332 kg (5130 lb); figures are consistent across the sources reviewed but should be treated as nominal for the class since Cat's demolition/sorting grapple line as a whole spans host-machine operating weights from about 10 000 kg to 45 000 kg (22,000-99,200 lb).
Actuation / hydraulic arrangement
As a fixed pin-mounted contractor grapple (not a rotating grapple), the G130B is closed and opened by a single hydraulic cylinder run off the excavator's auxiliary hydraulic circuit; it does not include a powered rotation head, distinguishing it from Cat's separate rotating-grapple product line.
Wear / guarding options
Standard guarding for this class includes AR400 wear plates and wrappers on the tine shell plus replaceable tine tips, aimed at extending service life in demolition and mixed-debris sorting work; no additional factory guard packages specific to the G130B were found beyond these wear components.
All G130B assemblies by section
Every catalogued assembly group for the Caterpillar G130B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Service Equipment And Supplies
280-1490 Plate & Film Gp
| 15***44 | Film-Warning; (Flying Debris) | 1 |
| 15***35 | Film-Warning; (Crush Hazard, Stay Back) | 2 |
| 15***36 | Film-Warning; (Read Operation Manual) | 1 |
285-8093 Plate & Film Gp
| 15***44 | Film-Warning; (Flying Debris) | 1 |
| 15***35 | Film-Warning; (Crush Hazard, Stay Back) | 2 |
| 15***36 | Film-Warning; (Read Operation Manual) | 1 |
287-0487 Plate & Film Gp
| 15***44 | Film-Warning; (Flying Debris) | 1 |
| 15***35 | Film-Warning; (Crush Hazard, Stay Back) | 2 |
| 15***36 | Film-Warning; (Read Operation Manual) | 1 |
287-8239 Plate & Film Gp
| 28***39 | Plate & Film Group | 1 |
286-5619 Plate & Film Gp
| 15***44 | Film-Warning; (Flying Debris) | 1 |
| 15***35 | Film-Warning; (Crush Hazard, Stay Back) | 2 |
| 15***36 | Film-Warning; (Read Operation Manual) | 1 |
284-7987 Plate & Film Gp
| 15***44 | Film-Warning; (Flying Debris) | 1 |
| 15***35 | Film-Warning; (Crush Hazard, Stay Back) | 2 |
| 15***36 | Film-Warning; (Read Operation Manual) | 1 |
285-3642 Plate & Film Gp
| 15***44 | Film-Warning; (Flying Debris) | 1 |
| 15***35 | Film-Warning; (Crush Hazard, Stay Back) | 2 |
| 15***36 | Film-Warning; (Read Operation Manual) | 1 |
288-3908 Plate & Film Gp
| 28***08 | Plate & Film Group | 1 |
287-5798 Plate & Film Gp
| 15***44 | Film-Warning; (Flying Debris) | 1 |
| 15***35 | Film-Warning; (Crush Hazard, Stay Back) | 2 |
| 15***36 | Film-Warning; (Read Operation Manual) | 1 |
Work Tool Arrangement
321-6032 Grapple Ar-Demolition
| 28***04 | Pin Group-Grapple; -G130b, D-Linkage | 1 |
| 32***58 | Grapple Group | 1 |
| 32***32 | Grapple Ar-Demolition | 1 |
282-2576 Grapple Ar-Mechanical
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 28***76 | Grapple Ar-Mechanical | 1 |
| 28***77 | Grapple Group; -G165b | 1 |
275-6072 Grapple Ar-Mechanical -G125b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***72 | Grapple Ar-Mechanical; -G125b | 1 |
| 27***75 | Grapple Group; -G125b | 1 |
279-7362 Grapple Ar-Mechanical -G145b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***62 | Grapple Ar-Mechanical; -G145b | 1 |
| 27***77 | Grapple Group; -G145b | 1 |
279-7307 Grapple Ar-Mechanical -G120b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***07 | Grapple Ar-Mechanical; -G120b | 1 |
| 27***22 | Grapple Group; -G120b | 1 |
282-2575 Grapple Ar-Mechanical -G165b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 28***75 | Grapple Ar-Mechanical; -G165b | 1 |
| 28***77 | Grapple Group; -G165b | 1 |
279-7306 Grapple Ar-Mechanical -G120b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***06 | Grapple Ar-Mechanical; -G120b | 1 |
| 27***22 | Grapple Group; -G120b | 1 |
275-2402 Grapple Ar-Mechanical -G130b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***02 | Grapple Ar-Mechanical; -G130b | 1 |
| 27***04 | Grapple Group; -G130b | 1 |
283-7308 Grapple Ar-Mechanical -G185b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 28***08 | Grapple Ar-Mechanical; -G185b | 1 |
| 28***10 | Pin Group-Grapple; -G185b | 1 |
285-1264 Grapple Ar-Mechanical -G107b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 28***64 | Grapple Ar-Mechanical; -G107b | 1 |
| 28***15 | Grapple Group | 1 |
282-8316 Grapple Ar-Mechanical -G115b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 28***16 | Grapple Ar-Mechanical; -G115b | 1 |
| 28***17 | Grapple Group; -G115b | 1 |
279-7305 Grapple Ar-Mechanical -G120b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***05 | Grapple Ar-Mechanical; -G120b | 1 |
| 27***22 | Grapple Group; -G120b | 1 |
275-6073 Grapple Ar-Mechanical -G125b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***73 | Grapple Ar-Mechanical; -G125b | 1 |
| 27***75 | Grapple Group; -G125b | 1 |
283-5790 Grapple Ar-Mechanical -G112b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 28***90 | Grapple Ar-Mechanical; -G112b | 1 |
| 28***91 | Grapple Group; -G112b | 1 |
275-2403 Grapple Ar-Mechanical -G130b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***03 | Grapple Ar-Mechanical; -G130b | 1 |
| 27***04 | Grapple Group; -G130b | 1 |
275-2401 Grapple Ar-Mechanical -G130b
| 13***34 | Plate-Identification; (Work Tool) | 0 |
| 27***01 | Grapple Ar-Mechanical; -G130b | 1 |
| 27***04 | Grapple Group; -G130b | 1 |
279-7361 Grapple Ar-Mechanical -G145b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***61 | Grapple Ar-Mechanical; -G145b | 1 |
| 27***77 | Grapple Group; -G145b | 1 |
275-2400 Grapple Ar-Mechanical -G130b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***00 | Grapple Ar-Mechanical; -G130b | 1 |
| 27***04 | Grapple Group; -G130b | 1 |
275-6074 Grapple Ar-Mechanical -G125b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 27***74 | Grapple Ar-Mechanical; -G125b | 1 |
| 27***75 | Grapple Group; -G125b | 1 |
283-7307 Grapple Ar-Mechanical -G185b
| 13***34 | Plate-Identification; (Work Tool) | 1 |
| 28***07 | Grapple Ar-Mechanical; -G185b | 1 |
| 28***09 | Pin Group-Grapple; -G185b | 1 |
Work Tools
279-7322 Grapple Gp -G120b
| 09***48 | Nipple, Grease | 4 |
| 10***29 | Bearing-Sleeve | 2 |
| 12***90 | Bearing-Sleeve | 2 |
284-5386 Grapple Gp -G185b
| 08***97 | Washer; (13x50x6-mm Thk) | 1 |
| 09***30 | Seal-Lip Type | 4 |
| 09***74 | Bearing-Sleeve | 1 |
321-4358 Grapple Gp
| 27***09 | Bushing | 2 |
| 27***14 | Pin | 1 |
| 27***17 | Bushing | 2 |
283-5791 Grapple Gp -G112b
| 09***48 | Nipple, Grease | 6 |
| 14***38 | Bearing-Sleeve | 4 |
| 16***52 | Bearing; (180.45-mm Id) | 2 |
285-3515 Grapple Gp
| 27***08 | Bushing | 2 |
| 27***13 | Pin | 1 |
| 27***16 | Bearing | 2 |
279-7377 Grapple Gp -G145b
| 09***48 | Nipple, Grease | 6 |
| 14***38 | Bearing-Sleeve | 4 |
| 18***58 | Bearing; (190.31-mm Od) | 2 |
275-6075 Grapple Gp -G125b
| 09***48 | Nipple, Grease | 4 |
| 10***29 | Bearing-Sleeve | 2 |
| 19***52 | Bracket As-Mounting | 1 |
275-2404 Grapple Gp -G130b
| 09***48 | Nipple, Grease | 4 |
| 19***52 | Bracket As-Mounting | 1 |
| 19***60 | Pin As | 1 |
282-8317 Grapple Gp -G115b
| 09***48 | Nipple, Grease | 4 |
| 12***90 | Bearing-Sleeve | 2 |
| 19***63 | Spacer; (16.5x22.2x13-mm Thk) | 1 |
282-2577 Grapple Gp -G165b
| 09***48 | Nipple, Grease | 4 |
| 11***81 | Bearing-Sleeve | 2 |
| 12***90 | Bearing-Sleeve | 2 |
280-9012 Pin Gp-Grapple -G130b
| 27***16 | Bearing | 2 |
| 27***79 | Bearing | 2 |
| 27***81 | Pin | 1 |
281-2049 Pin Gp-Grapple -G145b, F / T-Linkage
| 19***79 | Plate | 1 |
| 28***49 | Pin Group-Grapple; -G145b, F / T-Linkage | 1 |
| 28***53 | Pin As | 1 |
281-0356 Pin Gp-Grapple -G120b, G125b, Cb-Linkage
| 27***82 | Bushing | 2 |
| 27***83 | Collar | 2 |
| 27***84 | Pin | 1 |
282-2583 Pin Gp-Grapple -G165b
| 08***23 | Pin Bkt To Stk Link To Bkt. | 1 |
| 09***76 | Nut; (M14x2-Thd) | 2 |
| 24***74 | Bolt; (M14x2x160-mm) | 1 |
280-9004 Pin Gp-Grapple -G130b, D-Linkage
| 09***49 | Washer; (22x60x6-mm Thk) | 1 |
| 25***58 | Pin As | 1 |
| 27***10 | Bushing | 2 |
280-9013 Pin Gp-Grapple -G130b, Cb-Linkage
| 09***49 | Washer; (22x60x6-mm Thk) | 1 |
| 23***31 | Pin As | 1 |
| 27***08 | Bushing | 2 |
285-3550 Pin Gp-Grapple -G107b
| 26***28 | Plate As-Wear | 3 |
| 26***29 | Plate-Wear | 4 |
| 26***30 | Plate-Wear | 4 |
281-2051 Pin Gp-Grapple -G145b
| 19***79 | Plate | 1 |
| 21***88 | Pin As | 1 |
| 28***51 | Pin Group-Grapple; -G145b | 1 |
283-5792 Pin Gp-Grapple -G112b, 312-Linkage
| 19***80 | Plate | 1 |
| 19***84 | Pin As | 1 |
| 28***59 | Collar | 2 |
283-7310 Pin Gp-Grapple -G185b
| 26***19 | Plate As-Wear | 2 |
| 26***20 | Plate As-Wear | 3 |
| 26***23 | Plate-Wear | 4 |
280-9011 Pin Gp-Grapple -G130b, C-Linkage
| 09***49 | Washer; (22x60x6-mm Thk) | 1 |
| 23***31 | Pin As | 1 |
| 27***11 | Bushing | 2 |
282-2582 Pin Gp-Grapple -G165b, V-Linkage
| 10***78 | Pin | 1 |
| 28***82 | Pin Group-Grapple; -G165b, V-Linkage | 1 |
| 28***22 | Bearing | 2 |
281-0355 Pin Gp-Grapple -G120b, G125b, C-Linkage
| 27***80 | Bushing | 2 |
| 27***81 | Pin | 1 |
| 27***84 | Bushing | 2 |
283-7309 Pin Gp-Grapple -G185b
| 04***12 | Pin | 2 |
| 10***34 | Pin | 1 |
| 28***09 | Pin Group-Grapple; -G185b | 1 |
281-0357 Pin Gp-Grapple -G120b, G125b, B-Linkage
| 20***71 | Washer; (26x90x8-mm Thk) | 1 |
| 27***83 | Collar | 2 |
| 27***86 | Bushing | 2 |
282-8521 Pin Gp-Grapple -G115b
| 19***79 | Plate | 1 |
| 28***59 | Collar | 2 |
| 28***21 | Pin Group-Grapple; -G115b | 1 |
298-5681 Plate Gp-Wear
| 27***37 | Keeper | 1 |
| 27***78 | Keeper | 1 |
| 27***00 | Plate-Wear | 2 |
268-9631 Plate Gp-Wear
| 26***31 | Plate Group-Wear | 1 |
| 29***66 | Plate As-Wear | 4 |
| 29***69 | Plate As-Wear | 1 |
268-9617 Plate Gp-Wear
| 26***17 | Plate Group-Wear | 1 |
| 26***34 | Plate As-Wear | 2 |
| 26***65 | Plate As-Wear | 3 |
268-9679 Plate Gp-Wear
| 26***79 | Plate Group-Wear | 1 |
| 29***75 | Plate As-Wear | 4 |
| 29***78 | Plate As-Wear | 1 |
298-5672 Plate Gp-Wear
| 29***72 | Plate Group-Wear | 1 |
| 29***92 | Plate As-Wear | 5 |
| 29***93 | Plate-Wear | 2 |
298-5689 Plate Gp-Wear
| 28***32 | Plate-Wear | 2 |
| 28***33 | Plate-Wear | 2 |
| 28***37 | Bar, Bolt,Hex Flange Head Cap M8 X 1.25 X 125mm; Special, Bolt,Hex Flange Head Cap M8 X 1.25 X 125mm | 2 |
268-9670 Plate Gp-Wear
| 26***70 | Plate Group-Wear | 1 |
| 28***14 | Plate-Wear | 4 |
| 28***15 | Plate-Wear | 4 |
268-9625 Plate Gp-Wear
| 26***25 | Plate Group-Wear | 1 |
| 26***74 | Plate As-Wear | 4 |
| 26***76 | Plate As-Wear | 1 |
288-5713 Plate Gp-Wear
| 28***13 | Plate Group-Wear | 1 |
| 29***84 | Plate As-Wear | 4 |
| 29***85 | Plate-Wear | 4 |
285-1265 Tine As
| 27***37 | Keeper | 1 |
| 27***74 | Plate-Wear | 2 |
| 27***75 | Plate-Wear | 2 |
275-6076 Tine As -Upper
| 27***76 | Tine As; -Upper | 1 |
| 28***33 | Plate-Wear | 3 |
| 28***41 | Plate-Wear | 3 |
285-1266 Tine As
| 10***29 | Bearing-Sleeve | 2 |
| 27***07 | Tine Group; -Lower | 1 |
| 28***66 | Tine As | 1 |
279-7378 Tine Gp
| 25***07 | Bearing-Sleeve | 2 |
| 27***78 | Tine Group | 1 |
| 28***56 | Tine Group | 1 |
275-6077 Tine Gp
| 27***77 | Tine Group | 1 |
| 27***10 | Plate-Wear | 2 |
| 27***11 | Plate-Wear | 2 |
285-3538 Tine Gp
| 27***05 | Tine Group | 1 |
| 28***38 | Tine Group | 1 |
| 28***14 | Plate-Wear | 4 |
275-2406 Tine Gp -Lower
| 10***29 | Bearing-Sleeve | 2 |
| 27***06 | Tine Group; -Lower | 1 |
| 27***78 | Tine Group | 1 |
283-5856 Tine Gp
| 10***29 | Bearing-Sleeve | 2 |
| 27***06 | Tine Group; -Lower | 1 |
| 28***56 | Tine Group | 1 |
321-4360 Tine Gp
| 15***44 | Film-Warning; (Flying Debris) | 1 |
| 15***35 | Film-Warning; (Crush Hazard, Stay Back) | 2 |
| 15***36 | Film-Warning; (Read Operation Manual) | 1 |
283-5794 Tine Gp
| 22***14 | Bearing-Sleeve | 2 |
| 28***94 | Tine Group | 1 |
| 28***66 | Tine As | 1 |
275-2405 Tine Gp
| 27***05 | Tine Group | 1 |
| 27***75 | Plate-Wear | 1 |
| 27***76 | Bar | 2 |
321-4361 Tine Gp -Heavy Duty
| 15***44 | Film-Warning; (Flying Debris) | 1 |
| 15***35 | Film-Warning; (Crush Hazard, Stay Back) | 2 |
| 15***36 | Film-Warning; (Read Operation Manual) | 1 |
283-5793 Tine Gp
| 21***21 | Keeper | 2 |
| 28***93 | Tine Group | 1 |
| 28***19 | Plate-Wear | 2 |
275-6078 Tine Gp
| 27***78 | Tine Group | 1 |
| 28***18 | Plate-Wear | 2 |
| 28***19 | Plate-Wear | 2 |
275-2407 Tine Gp -Lower
| 27***07 | Tine Group; -Lower | 1 |
| 27***01 | Plate-Wear | 2 |
| 27***07 | Plate-Wear | 1 |
G130B serial number reference
The PIN/serial plate is riveted or stamped onto the grapple's mounting frame or one of the pivot ears near the top link/bucket-linkage attachment point, the same general area used on Cat work-tool attachments rather than on a machine cab. Read the first three characters as the serial prefix (a letter-letter-letter code, here GCN), which identifies the specific tool model and configuration within the shared Contractor Grapple parts family; the digits following it are the sequential unit number within that prefix run.
| Prefix | Identifies | Notes |
|---|---|---|
| GCN | G130B Contractors' Grapple, D-Linkage (mechanical grapple attachment, no engine) | Effective S/N GCN1-up. Part of the shared Contractor Grapples parts-catalog family (G107B/G112B/G115B/G120B/G125B/G130B/G145B/G165B/G185B); GCN is the prefix tied specifically to the G130B row, distinct from each sibling's own prefix. D-Linkage and DB-Linkage pin-group variants are documented for the G130B, matched to medium (330-class) hydraulic excavator carriers. Some pin components are also listed as shared with the G145B, G165B, G185B and L340F log-loader linkage group. No engine, no ECM, no fault-code or fluid data applies — this is a passive bucket-linkage attachment. Plant/region and production-year data not found in available parts documentation. |
Frequently asked questions
What engine does the Caterpillar G130B use?
None. The G130B is a passive mechanical work tool with no engine, ECM, or onboard hydraulic system of its own. Its single opening/closing cylinder is powered entirely by the host excavator's auxiliary hydraulic circuit.
What is the operating weight of the Caterpillar G130B?
About 2332 kg (5130 lb), per Cat product literature for this Contractors' Grapple.
What replaced the Caterpillar G130B?
No confirmed successor is documented in available Cat literature. It remains part of the current Contractors' Grapple lineup alongside its G107B, G112B, G115B, G120B, G125B, G145B, G165B, and G185B siblings, each sized and prefixed for a different excavator class rather than superseding one another. Verify current availability and any newer linkage configuration with your Cat dealer.
What G130B owners discuss
Where does wear show up first on a G130B-type mechanical grapple?
Why would the jaws start closing slowly or losing grip force compared to when the tool was new?
How much play at the pivot pins and bushings is considered normal wear versus a problem?
Does the grease interval actually matter on a simple single-cylinder grapple like this?
Can a G130B just be swapped between different excavators, or is the linkage fixed?
What causes structural cracking on grapples used heavily for demolition sorting, and how serious is it?
What should you check before buying a used G130B?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific G130B part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.