OE MAIN SEAL AUDI
Article No: 06M103051B

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The OE (Original Equipment) Main Seal in an Audi is a Genuine Audi-specified oil seal that sits at a primary rotating point — most commonly the crankshaft’s front or rear end — and prevents engine oil from leaking out of the crankcase where the crankshaft leaves the block or connects to the transmission. This seal is also called a rear main seal (at the back of the crankshaft) or front main seal (at the front) depending on its position. These main seals are made from high-quality oil-resistant elastomer/rubber bonded to a rigid metal or plastic support to ensure reliable sealing under heat, pressure, and engine vibration.

Description

They are critical for maintaining engine lubrication integrity, oil pressure, and preventing oil loss, which protects internal bearings and other components from damage.

Common Audi OE Main Seal Part Numbers

  • Audi Rear Main Seal – OE 079 103 051 F: A genuine Audi crankshaft rear seal used on many V6, V8, and TDI engines to prevent oil leaking from the back of the crankshaft near the transmission.

  • Audi Rear Main Seal – OE 06E 103 051 J: Another genuine rear crankshaft main seal used on more recent Audi engines.

  • Audi Front/Rear Main Seals – OE 068 103 085E/F: Older style crankshaft front main seal used on earlier Audi and VW engines.

  • Audi Crankshaft Seal with Flange – OE 06H 103 171 A/F: A crankshaft main seal with a flange used on many 2.0 L engines to keep oil from the front/back crankshaft.

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Article No: 06M103051B”

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