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(888) 312-8812 Login SignupThe Cummins Engine Rocker Lever is a precision-forged valvetrain component engineered for non-certified 11-liter M11 engines. This heavy-duty lever acts as the mechanical link that translates camshaft lift into precise valve opening and closing events. Manufactured to strict original-equipment tolerances, it ensures optimal valve timing and lift consistency to maintain combustion efficiency. Installing this genuine Cummins 4003911 rocker lever prevents premature valvetrain wear and ensures the overhead cam assembly operates at peak performance in high-mileage M11 blocks.
| Warranty Distance | 100000 |
| Warranty Distance UOM | DH |
| Warranty Time | 1 |
| Warranty Time UOM | YR |
| Brand | Part Number |
|---|---|
| 4003911 |
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