
278-5112 Rocker Arm Group
Cat® Rocker Arm Group
Description
Cat rocker arm groups are designed to open and close engine valves using the rotary motion of the crankshaft.
Features
OEM direct replacement part
Applications
Cat rocker arm groups are used for rocker arm shaft groups, control lever groups, and other rocker arm groups on Cat engines. Refer to your Operation and Maintenance Manual or contact MECHSC for more information.
Specifications
| Overall Width | 38.1 mm (1.5 in) |
|---|---|
| Overall Length | 83.06 mm (3.27 in) |
| Overall Height | 52.07 mm (2.05 in) |
Compatible Equipment
- Generator Sets: C7.1, C4.4, C4.4DE88E0, 3512B
- Track Loaders: 963, 953K, 953D, 963K, 963D, 953
- Cold Planers: PL61
- Compactors: CS12, CS7, CS11, CS78B, CB-66B, CP54B, CS-54, CS79B, CS56B, CS54B, CS74B, CB16, CP56B, CS-56, CS68B, CW-34, CW-16, CB-64B, CB-44B, 815, 816, 814, CB15, CB10, CB13, CS64B, CS-54B
- Engines: C6.6
- Excavators: 320D, 329D2 L, 330, 326D2, 326D2 L, 329D2, 320D2, 320D L, 320 GC, 323D2 L, 323, 330D2, 313D2, 320, 313D2-GC, 336 GC, 320D2 GC, 326GC, 323GC, 330D2 L, 326, 318D2, 320D GC, 318D2 L, 313D2 GC, 323D L, 323D2, 320 GX, 326 GC, 333 GC, 333, 330 GC, 323 GX
- Asphalt Pavers: AP655F, AP655F L, AP-600D
- Motor Graders: 140 GC, 120
- Wheel Excavators: M320, M315, M315D, M322D, M313D, M320D2, M315D2, IT14G, M317D2, M315GC
- Dozers: D3K2 LGP, D6N, D6K2, D5K LGP, D5K2 XL, D5K XL, D4
- Wheel Loaders: 924K, 950 GC, 938K, 924HZ, 962L, 928HZ, 950L
Additional information
| Machine Model | 120, 140 GC, 313D2, 313D2 GC, 313D2-GC, 318D2, 318D2 L, 320, 320 GC, 320 GX, 320D, 320D GC, 320D L, 320D2, 320D2 GC, 323, 323 GX, 323D L, 323D2, 323D2 L, 323GC, 326, 326 GC, 326D2, 326D2 L, 326GC, 329D2, 329D2 L, 330, 330 GC, 330D2, 330D2 L, 333, 333 GC, 336 GC, 3512B, 814, 815, 816, 924HZ, 924K, 928HZ, 938K, 950 GC, 950L, 953, 953D, 953K, 962L, 963, 963D, 963K, AP-600D, AP655F, AP655F L, C4.4, C4.4DE88E0, C6.6, C7.1, CB-44B, CB-64B, CB-66B, CB10, CB13, CB15, CB16, CP54B, CP56B, CS-54, CS-54B, CS-56, CS11, CS12, CS54B, CS56B, CS64B, CS68B, CS7, CS74B, CS78B, CS79B, CW-16, CW-34, D3K2 LGP, D4, D5K LGP, D5K XL, D5K2 XL, D6K2, D6N, IT14G, M313D, M315, M315D, M315D2, M315GC, M317D2, M320, M320D2, M322D, PL61 |
|---|---|
| Equipment Type | Excavators, Wheel Excavators, Wheel Loaders, Track Loaders, Dozers, Motor Graders, Compactors, Asphalt Pavers, Cold Planers, Engines, Generator Sets |
| Part Source | Genuine OEM |




