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Precise valve control for truck engines For the efficient and reliable operation of a heavy diesel engine, a correctly functioning valvetrain is necessary. febi supplies the levers, better known as rocker arms, which transfer the movement of the camshaft to the intake and exhaust valves. These parts are critical for the engine's timing and breathing. System parts for a complete repair A rocker arm never functions alone. That is why the febi range also includes all associated wear parts. This includes the rocker arm shaft on which the levers pivot, the rocker arm bushes that absorb friction, and the rocker arm bridge that provides stable mounting. Restoration of engine performance and service life After many millions of valve movements, play develops on the contact surfaces and bushes. This leads to a ticking noise, reduced engine power, and higher emissions. By replacing the complete rocker arm assembly with febi parts, the original valve clearance is restored and the engine functions as it should again. Quality according to original specifications The valvetrain components are subjected to heavy loads. The materials and the hardening of the contact surfaces must be exact. febi parts are OE-compliant, which means they meet the engine manufacturer's specifications. This provides a long service life and prevents premature engine wear.