BMW 3-Series Pistons, Rings & Connecting Rods

Once fuel is ignited, the piston receives an impulse pushing it downward while delivering a rotational motion to the crankshaft via a connecting rod. Essentially, that’s how your BMW 3-Series’ engine puts the car in motion. In that action, the piston rings play an important role. Whereas the top ring serves as a sealing for gases that create pressure in the combustion chamber, the bottom ring, which features a different design, removes motor oil from cylinder walls to prevent it from burning. A number of rings may differ according to the engine design, but typically, there are two compression rings and one (bottom) ring to control oil.

What is common for all the piston rings is that they experience comparatively intensive wear resulting in compression drop and high oil consumption. In our BMW 3-Series pistons, rings & connecting rods collection, you will find lots of high-quality products for your car. However, all of them have been accurately cataloged, so you will find the right components for your particular car with ease. Place an order, and we will arrange the fastest shipping, so you will be able to make the expected repairs very soon.