Special Offers
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4975214 Rocker Lever Housing Gasket
The 4975214 rocker lever housing gasket fits Cummins ISZ, QSZ Z13 and ISX12 diesel engines perfectly. It creates a tight seal on valve train assemblies to stop oil seepage and dust intrusion. Resistant to high engine...Sale price $39.55Regular price $64.82Sale price $39.55Regular price $64.82 -
4975638 Rocker Lever Housing Gasket
Upgrade your Cummins engine with the 4975638 3092480 Rocker Lever Housing Gasket, a must-have for anyone seeking reliable performance and durability. Precision-engineered to fit seamlessly with your QST30 model, these gaskets are a testament to top-tier...Regular price $16.00Regular price $16.00 -
4999525 Rocker Lever Housing
Part Number:4999525Part Name:Rocker Lever HousingOrigin:ChinaCondition:OEMSale price $876.87Regular price $1,064.71Sale price $876.87Regular price $1,064.71 -
4999540 Rocker Lever
This 4999540 rocker lever matches NT855 series engines. Optimized structural design lowers operating load. Tough material resists fatigue under frequent movement. It is a reliable replacement for worn valve components.Sale price $129.65Regular price $159.99Sale price $129.65Regular price $159.99 -
4999541 Rocker Lever
4999541 rocker lever is a key valve control part for NT855 engines. High-strength forging bears repeated impact. Precision contact surface reduces wear. Standard size for direct assembly during engine repair.Sale price $129.65Regular price $169.99Sale price $129.65Regular price $169.99 -
4999778 Rocker Lever Housing Gasket
For Cummins ISX12, ISX13, QSX11.9, ISZ and QSZ Z13 engines, this 4999778 rocker lever housing gasket offers reliable sealing performance. It blocks lubricating oil from leaking out of the valve mechanism and keeps dirt out of...Regular price $7.95Regular price $7.95
The rocker lever is a pivoting lever in the engine's valvetrain. It acts as a link between the camshaft and the engine valves. As the camshaft rotates, its lobes push on one end of the rocker lever, causing it to pivot and press down on the valve at the other end. This opens the valve at precisely the right moment to let air and fuel in or exhaust gases out. When the cam moves past, the rocker lever returns and the valve spring closes the valve.