Billet Aluminum Front Main Seal – B8/B8.5/C7 Audi EA837 3.0T Supercharged Vehicles
Billet Aluminum Front Main Seal – B8/B8.5/C7 Audi EA837 3.0T Supercharged Vehicles
Verified fitment data is available for 70 vehicle applications.
View verified Year / Make / Model fitment
- 2008 Audi A4
- 2009 Audi A4
- 2010 Audi A4
- 2011 Audi A4
- 2012 Audi A4
- 2013 Audi A4
- 2014 Audi A4
- 2015 Audi A4
- 2016 Audi A4
- 2017 Audi A4
- 2008 Audi A5
- 2009 Audi A5
58 additional applications are included in the fitment data.
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PRE-ORDER: Available in October
When a belt lets go on your 3.0T, the stock front main seal usually goes with it. That thin stamped-steel wiper seal can shred and ingest belt fragments, and once it does, you're looking at an oil leak, a mess in the engine bay, and possibly a misfire that catches you off guard.
The Vorsprung Autowerk Billet Aluminum Front Main Seal replaces that weak point with a CNC-machined 6061-T6 aluminum holder finished in gloss black anodizing, paired with an OEM Viton Elring seal and integral tension spring. It holds up to higher crankcase pressures than the factory seal, so you get a tighter, more dependable seal around your crank pulley even when your engine is working hard. Grade 12.8 hardware is included, so the whole kit is ready to install.
Built for B8/B8.5/C7 Audi S4, S5, Q5, SQ5, A6, and A7 owners (plus non-US A4 and A5 3.0 TFSI models) running the EA837 3.0T supercharged engine, this is the same proven design already trusted across the Audi tuning community.
Vehicle Fitment
| Make | Model | Years | Chassis | Engine |
|---|---|---|---|---|
| Audi | A4 (non-US market) | 2012-2015 | B8.5 | 3.0 TFSI Supercharged |
| Audi | A5 (non-US market) | 2012-2016 | B8.5 | 3.0 TFSI Supercharged |
| Audi | S4 | 2010–2016 | B8 / B8.5 | 3.0 TFSI Supercharged |
| Audi | S5 | 2013–2017 | B8.5 | 3.0 TFSI Supercharged |
| Audi | Q5 | 2013-2017 | B8 / B8.5 | 3.0 TFSI Supercharged |
| Audi | SQ5 | 2014–2017 | 8R | 3.0 TFSI Supercharged |
| Audi | A6 | 2012–2015 | C7 | 3.0 TFSI Supercharged |
| Audi | A7 | 2012–2015 | C7 | 3.0 TFSI Supercharged |
NOTE: Fits the EA837 3.0 TFSI supercharged engine only (not the EA839 2.9T/3.0T twin-turbo engine).
S5 / A5 NOTE: 2010-2012 fitment is the S5 Cabriolet only (the 2008-2012 S5 coupe has the 4.2 V8). The A5 was never sold with the supercharged 3.0T in North America; the European-market B8.5 A5 3.0 TFSI (2012-2016) uses the same EA837 engine, so confirm your engine code before ordering.
Install it once during your next belt service, and stop worrying about what a bad belt might take with it. Give your 3.0T a seal built to outlast the belt.
Front Main Seal FAQ
Do I need to replace anything else while I'm in there?
Since you're already removing the crank pulley and belt to access this area, it's a good time to inspect or replace your supercharger belt and check your tensioner pulley for play.
What's included in the kit?
The CNC-machined 6061-T6 aluminum seal holder (gloss black anodized), an OEM Viton Elring seal, integral tension spring, and Grade 12.8 mounting hardware.
Does this fit the EA839 2.9T/3.0T twin-turbo engine?
No. This seal is designed specifically for the EA837 3.0 TFSI supercharged engine and does not fit the EA839 twin-turbo engine.
Can I install this myself?
Yes, if you're comfortable removing the crank pulley and accessory belt. No special tools beyond standard hand tools are required.
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