Genuine 079103175G Engine Oil Check Valve Revision G

The Genuine 079 103 175 G is an OEM-quality engine oil check valve engineered for Audi V8 applications. Revision G represents the latest updated supersession of this part, incorporating manufacturer refinements over earlier revisions (C through F).

Key Features:

• OEM Genuine Part — manufactured to the exact factory specifications of the original component
• Oil Check (Non-Return) Valve — opens during engine operation to allow oil circulation to the cylinder heads, then closes at shutdown to retain oil in the heads and keep valve train components lubricated
• Located under the valley pan — positioned centrally in the engine valley, controlling pressurized oil flow to the cylinder heads
• Revision G — the latest updated version, superseding earlier C, D, E, and F revisions
• Critical for turbo health — a failed or clogged valve can restrict oil flow and contribute to premature turbocharger failure
• Direct OEM replacement — installs in the same location as the factory part with no modifications required

Replacing a worn or failed oil check valve is essential maintenance on high-performance Audi V8 engines. A faulty valve can cause oil pressure irregularities, insufficient lubrication to the cylinder heads, and in turbocharged variants, accelerated turbocharger wear. Using a Genuine OEM part ensures proper sealing, correct flow characteristics, and long service life. Recommended for replacement during any major engine, valve train, or turbocharger service.

OEM Part Numbers: 079 103 175 G / 079103175G
Supersedes: 079 103 175 C, 079 103 175 D, 079 103 175 E, 079 103 175 F