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Vorsprung Autowerk

Vorsprung TruSeal High-Performance Oil Gasket Upgrade, Audi 3.0T

Vorsprung TruSeal High-Performance Oil Gasket Upgrade, Audi 3.0T

Regular price $14.99 USD
Regular price Sale price $14.99 USD
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Vorsprung TruSeal High-Performance Gasket Upgrade

The last seal you will ever need to install.

Standard factory gaskets are the Achilles' heel of the Audi 3.0T platform. While the engines are robust, the OEM rubber seals are prone to hardening, flattening, and failing, especially in colder climates.

At Vorsprung Autowerk, we don't just replicate factory parts; we engineer out the flaws.

The Problem: Additive Degradation & The "Cold Start" Leak

Factory Audi gaskets are typically manufactured using standard bisphenol-cured FKM (Viton). While decent at resisting base oils, this standard material has a fatal flaw: synthetic oil additives.

Modern engine oils are packed with aggressive amine-based friction modifiers and detergents. Over time, these amines chemically attack the weak cross-links in standard factory seals. This chemical degradation strips the gasket of its elasticity, turning it into hard plastic.

Once degraded, the gasket loses its compression set and physically shrinks in cold weather. This is why you often see oil "weeping" on your driveway on a cold winter morning, the chemically hardened seal has physically pulled away from the housing until engine heat expands it back into place. Eventually, this permanent flattening leads to catastrophic leaks.

The Solution: Peroxide-Cured FKM Technology

We have upgraded the industry standard. Our seals are manufactured exclusively from Peroxide-Cured Viton, a premium aerospace-grade fluoroelastomer designed to solve the chemical and thermal shortcomings of standard rubber.

  • Chemical Immunity: The peroxide-curing process creates ultra-stable carbon-carbon bonds within the polymer. This makes the gasket virtually immune to the amine additives in modern synthetic oils that destroy factory seals. It will not swell, degrade, or become embrittled by oil chemistry.
  • Extreme Thermal Flexibility: Unlike standard FKM, which becomes brittle at -4°F (-20°C), Vorsprung Peroxide-Cured FKM remains fully flexible and elastic down to -40°F (-40°C). Your gaskets maintain active sealing pressure against the housing 100% of the time, whether it's a sub-zero cold start or a 250°F track day.
  • Made to Exact OEM Specification: Molds formed from the original OEM gaskets ensure a perfect factory match. No shortcuts here.

Engineered for Billet

We spec our seals at a precise 75 Shore A Durometer.

  • Too Soft (70A, standard): Can extrude under high oil pressure spikes (80+ PSI).
  • Too Hard (90A): Cannot conform to micro-imperfections, leading to leaks.
  • Vorsprung 75A: The perfect engineering balance. It resists high-pressure extrusion while maintaining the necessary compliance to form a perfect, permanent seal against aluminum billet housings.

Key Specifications

  • Material: Genuine Chemours Peroxide-Cured Viton™ FKM
  • Hardness: 75 Durometer (Shore A). Optimized for Billet Aluminum
  • Temperature Range: -40°F to +400°F (-40°C to +204°C)
  • Lifespan: Engineered to outlast factory seals by 2-5x (Estimated 15+ years)
  • Resistance: Total chemical immunity to synthetic engine oil additive packages, transmission fluid, and coolant.

Vehicle Fitment

This seal fits the Audi 3.0T EA837 supercharged V6, including the S4/S5 (B8/B8.5), Q5/SQ5 (B8/B8.5), A6/A7 (C7/C7.5), A8 (D4), and Q7 (4L/4M), and is optimized for use against Vorsprung's billet aluminum housings on this platform.

Make Model Chassis Engine
Audi S4 / S5 B8 / B8.5 3.0T V6 Supercharged
Audi Q5 / SQ5 B8 / B8.5 3.0T V6 Supercharged
Audi A6 / A7 C7 / C7.5 3.0T V6 Supercharged
Audi A8 D4 3.0T V6 Supercharged
Audi Q7 4L / 4M 3.0T V6 Supercharged

NOTE: For the supercharged EA837 3.0T engine only. Confirm your engine code before ordering if you're unsure which platform you have.

TruSeal Oil Gasket FAQ

What's wrong with the factory gasket?
Standard bisphenol-cured FKM is attacked over time by amine-based additives in modern synthetic oils, which strips its elasticity and leads to cold-start weeping and eventually catastrophic leaks.

Will this work with any billet oil filter housing?
Yes, it's specced at 75 Shore A durometer specifically to seal well against aluminum billet housings on this platform.

Will this hold up in cold weather?
Yes. Peroxide-cured Viton stays flexible down to -40°F, unlike standard FKM which can become brittle around -4°F.

Is this made to OEM dimensions?
Yes, molds are formed from the original OEM gaskets for a perfect factory match.

How long will this seal last?
It's engineered to outlast factory seals by 2-5x, with an estimated lifespan of 15+ years.

Why Buy From Us?

  • ✅
    Enthusiast Designed & Tested: Developed by people who actually drive and modify these cars.
  • ✅
    Tested on Our Own Cars: Every product is validated on our own fleet before it ever reaches a customer.
  • ✅
    Continuous R&D: We're constantly refining our parts based on real-world feedback and testing.
  • ✅
    Supporting Audi Platform Development: Every purchase helps fund development of more parts for these platforms.
  • ✅
    Real Enthusiast Support: Talk to people who actually know these cars, not a call center script.
  • ✅
    Small Team, Big Passion: We're enthusiasts first, and it shows in every part we build.
  • ✅
    Performance Without the Marketing Fluff: Honest parts, honest descriptions, no hype.

Drive the difference. Drive Vorsprung.

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