Volvo Trucks 21406638 ROCKER ARM

Description

The Volvo Trucks rocker arm is a critical component within the engine's valve train, facilitating the transfer of motion from the camshaft to the valves. It’s used in heavy-duty truck engines to open and close the intake and exhaust valves, ensuring proper engine timing and performance. This rocker arm is manufactured to exacting standards to withstand the high stresses and temperatures of a commercial vehicle engine, contributing to increased engine reliability and longevity. It features a robust design for consistent valve operation and improved efficiency.

Key Features & Benefits

These guys are all about taking the circular motion of your camshaft and turning it into the up – and – down motion that opens and closes your engine’s valves. Basically, the camshaft lobe pushes on the rocker arm, and that movement then pushes down on the valve stem. They’re a lever, simple as that. They have to do it precisely and repeatedly, thousands of times a minute when you’re driving. They’re a critical part of your engine’s valve train, which is everything that controls how air and fuel get into the cylinders and how exhaust gets out. Without working rocker arms, your engine just won’t run. Think of them as a key link between what makes your engine go and the actual combustion happening inside. They work alongside things like your pushrods, lifters, and of course, the camshaft itself, to make sure everything is timed correctly.

Symptoms, Risks & Replacements

Well, if a rocker arm goes bad, you’ll definitely notice. You’ll probably hear a ticking or clicking sound from the engine, and it might run rough, lose power, or even stall. Over time, they can wear down, or even break, from all that stress and heat. A worn rocker arm doesn't transfer the motion smoothly, so it’s like a miscommunication in the engine. It affects everything from fuel efficiency to how much power you get. You can find replacements pretty easily, and Fixparts Online has a good selection of them. It's one of those things where preventing a problem by replacing worn parts is much easier and cheaper than dealing with a major engine failure down the road. They really act like a shield protecting the more expensive parts of your engine.

Warranty Information

Volvo Trucks 21406638 ROCKER ARM comes with a 1-year warranty