These rings actually do a few important things. First, they seal the gap between the piston and the cylinder wall. Think of it like squeezing a balloon – you want to keep the air inside, right? These rings do that with combustion gases in the engine. Second, they control oil. They scrape excess oil off the cylinder walls to keep it from burning, and they help keep oil from getting into the combustion chamber where it shouldn’t be. And finally, they help transfer heat from the piston to the cylinder walls, which keeps things from overheating. Basically, this ring is a crucial part of what makes your engine run efficiently and powerfully. It's inside the engine, moving up and down with the piston, constantly working to maintain compression and keep things lubricated. Without these rings doing their job, you'd lose power, get terrible gas mileage, and you’d see a lot of oil burning. It’s a pretty fundamental part of the engine's operation. It’s important because if these rings wear out or break, you’ll notice if it's bad quickly. You'll probably see blue smoke coming from your exhaust, that’s burning oil getting past the rings. You’ll lose compression, which means the engine will feel weak and might even misfire. It can also lead to a lot of internal engine damage if left unchecked. They act like a shield against losing all that pressure and keeping the oil where it needs to be. You can find replacements easily enough – places like Fixparts Online usually carry a good selection. Getting the right rings and replacing them when needed will save you a lot of trouble and expense down the road. Better than the rest: Rectangular Piston Ring (MPN 0734317256) is backed by a 12-month warranty!

About ZF

ZF developed the revolutionary 8HP automatic transmission, widely used by luxury brands including BMW, Audi, and Porsche.

Why Choose ZF?

• ZF parts are known for being really reliable, so you can drive with confidence knowing things are built to last. • We make parts for many different types of cars and trucks, so there's a good chance we have what you need. • ZF invests a lot in research and development, meaning our parts often use the latest technology for better performance. • Our parts are used by major car manufacturers around the world – we’re a trusted name in the automotive industry. ZF delivers excellence, FixParts Online delivers to your door.