CATEngine Parts

256-3832 Rocker Arm — Cat 3126B 3126E

This rocker arm is a vital part of the engine's valve train, pivoting to open the valves when actuated by the push rod. Manufactured from high-strength, wear-resistant materials to meet OEM specifications, it ensures consistent valve lift and timing compared to worn arms with elongated pivot holes or worn contact surfaces. Operators may notice engine misfires, a loss of engine power, or audible valve train noise as indicators of a failing rocker arm.

Rocker Arm – Part No 256-3832 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeEngine Rocker Arm
MaterialHardened Steel
ApplicationEngine Valve Train
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of a worn rocker arm include increased noise from the valve train, often described as ticking or tapping. This can progress to engine misfires and a noticeable reduction in overall engine power. If a rocker arm fails completely, it can prevent a valve from opening or closing properly, severely impacting engine operation and potentially leading to further internal damage.

Installation Tip

Ensure the rocker arm pivot points and the valve stem tips are clean and properly lubricated with engine assembly lube. Avoid overtightening the rocker arm pedestal bolts, as this can distort the arm or damage the cylinder head.

Service Note

Inspect the corresponding push rod and valve stem for wear or damage when replacing a rocker arm.