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. 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. Reliable performance guaranteed: Rocker arm (MPN 4.68930) has a 12-month warranty!

About DT

Diesel Technic specializes in high-quality spare parts for commercial vehicles, offering reliability and durability for fleets worldwide.

Why Choose DT?

• We have the parts you need, even for older or less common vehicles. • Our prices are competitive – you get great value for your money. • We offer fast shipping, so you can get back on the road quickly. • Our customer service team is friendly and ready to help with any questions. FixParts Online – Your Trusted Source for Quality DT Auto Parts.