This is a rocker arm that is a critical component of the engine's valve train, controlling the opening and closing of intake and exhaust valves. Manufactured to Volvo's exacting standards, it ensures precise valve timing and lift, unlike a worn or damaged rocker arm which can cause poor engine performance. Operators may notice rough idling, loss of power, or unusual ticking noises from the engine if a rocker arm is failing.
Always verify with serial number before ordering.
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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.
An audible ticking or tapping noise from the cylinder head area, especially when the engine is cold, is often the first symptom. If ignored, the noise may become louder, and engine performance will degrade, leading to reduced power and increased fuel consumption. Severe wear can result in valve train damage and potential engine misfires.
Before installing, ensure the camshaft lobe that actuates the rocker arm is on the base circle to avoid binding. Never reuse the old adjusting screw or locknut; always use new components for proper valve lash adjustment.
Inspect the camshaft lobes and valve stems for wear or damage, and check the valve lash adjustment.