If you're looking to ditch that leaky factory rear main seal on your 1.8T or 2.0T FSI Volkswagen or Audi, the 034Motorsport Billet Aluminum Rear Main Seal is a solid choice. This isn't just another part; it's a serious upgrade. Made from CNC-machined 6061-T6 aluminum, it replaces the stamped steel factory seal that’s notorious for failing. Trust me, I've seen too many engines suffer from that poorly designed PTF sealing lip that leads to oil leaks and crankcase pressure headaches.

What sets this seal apart is the OEM Viton Elring seal paired with an integral tension spring, which ensures a snug fit against the crankshaft. That means no more worrying about oil drips staining your driveway or affecting your engine's performance. Plus, it’s been rigorously tested to hold up under high heat and heavy use—perfect for anyone who really drives their car.

Installation is straightforward, and you won't be left fumbling with parts. The seal comes pre-installed in the billet housing, so you won’t have to mess around with that yourself. It also features a handy sealant groove to avoid any sealant squeeze-out, and a screwdriver gap on the rear for easy removal down the line. And if you’re worried about the install process, don’t be—the kit includes an installation tool to keep the seal safe while you’re putting everything together.

Let’s break down what you get in the box:

• Billet Rear Main Seal Holder
• Elring Rear Main Seal
• New Grade 8.8 Mounting Hardware

This product is a direct replacement for the OEM part number 06A 103 171A, so you know it’s going to fit right. It’s compatible with a wide range of models, from the Audi A3 and A4 to various VW Golf and Jetta models, spanning years from the early '90s all the way to 2019.

In short, if you want to avoid the hassle of future oil leaks and keep your engine running smoothly, this Billet Rear Main Seal is worth considering. It’s built to last and designed with real-world use in mind. No more oil stains and no more worries—just solid performance.