Inside high-load diesel engines, valve timing stability depends heavily on the precision movement of the rocker arm system. 278-1364 exhaust rocker arm assembly is designed for CAT 320D, 320DL, and 330D excavators, transferring camshaft motion into controlled exhaust valve actuation during engine combustion cycles.
Item NO.:
278-1364Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSOperating under constant heat, vibration, and cyclic mechanical pressure, this rocker arm assembly helps maintain synchronized valve movement at varying engine speeds. It is commonly installed during cylinder head servicing, engine valve train rebuilding, and power system restoration in heavy-duty excavation equipment.

| Part Number | 278-1364 |
|---|---|
| Part Name | ROCKER ARM |
| Compatible Brand | Caterpillar |
| Applicable Models | CAT 320D / 320DL / 330D |
| Application | Excavator |
| Material | Heat-Treated Alloy Steel |
| Product Color | Metallic Grey |
| Working Temperature | -30°C to 220°C |
| Key Function | Transfers camshaft movement to exhaust valve mechanism |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Ensures stable exhaust valve opening and closing timing during continuous engine operation.

Built to withstand repetitive valve train movement under long-hour diesel engine workloads.

Maintains operational stability in high-temperature combustion chamber environments.


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