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Apex AHG939L Engine Cylinder Head Gasket - Left
| Brand | Apex AHG939L |
|---|---|
| Position | Left |
| Fits | Audi and Volkswagen · 22 vehicles |
Cylinder head gasket. Seals the engine block and cylinder head to maintain compression.
Apex AHG939L Cylinder Head Gasket
The Apex AHG939L is a left engine cylinder head gasket for select Audi and Volkswagen applications. It is a direct-fit sealing component for the left bank on V6-equipped vehicles, including Audi A6 Quattro, A8 Quattro, S6, S8, Allroad Quattro, and Volkswagen Phaeton and Touareg.
Key Features
- Engine cylinder head gasket for the left side
- Fits 2000-2004 Audi A6 Quattro, left
- Fits 2000-2003 Audi A8 Quattro, left
- Fits 2001-2003 Audi S8, left
- Fits 2002-2003 Audi S6, left
- Fits 2004-2005 Audi Allroad Quattro, left
- Fits 2004-2006 Volkswagen Phaeton, left
- Fits 2004-2006 Volkswagen Touareg, left
- Part number AHG939L for application matching and service lookup
Detailed Description
Use the Apex AHG939L when servicing the left cylinder head on the listed Audi and Volkswagen models. This gasket provides the sealing interface between the cylinder head and engine block, helping maintain compression and separate combustion pressure, coolant, and oil passages. The AHG939L part number is useful when verifying the correct left-bank gasket for Audi A6 Quattro, Audi A8 Quattro, and related Volkswagen Phaeton and Touareg engine repairs.
Common Repair Uses
- Compression loss from a failed head gasket seal
- Coolant leakage at the cylinder head interface
- Oil seepage between the head and block
- Overheating caused by sealing failure
- Combustion gas leakage into the cooling system
Installation Notes
Confirm engine code, bank location, and gasket orientation before installation. Inspect the cylinder head and block surfaces for warpage, corrosion, or residue, and clean all mating surfaces thoroughly. Follow factory torque sequence and tightening specifications during reassembly. Replace related sealing components as required by the service procedure, and verify coolant and oil levels after repair.
Quality Assurance
Apex AHG939L is cataloged for direct application matching on the listed Audi and Volkswagen vehicles. This part cross-references OE-style head gasket applications for the same service position.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Volkswagen | Phaeton | 4.2L | V8 | Left | — |
| 2006 | Volkswagen | Touareg | 4.2L | V8 | Left | — |
| 2005 | Audi | Allroad Quattro | 4.2L | V8 | Left | — |
| 2005 | Volkswagen | Phaeton | 4.2L | V8 | Left | — |
| 2005 | Volkswagen | Touareg | 4.2L | V8 | Left | — |
| 2004 | Audi | A6 Quattro | 4.2L | V8 | Left | — |
| 2004 | Audi | Allroad Quattro | 4.2L | V8 | Left | — |
| 2004 | Volkswagen | Phaeton | 4.2L | V8 | Left | — |
| 2004 | Volkswagen | Touareg | 4.2L | V8 | Left | — |
| 2003 | Audi | A6 Quattro | 4.2L | V8 | Left | — |
| 2003 | Audi | A8 Quattro | 4.2L | V8 | Left | — |
| 2003 | Audi | S6 | 4.2L | V8 | Left | — |
| 2003 | Audi | S8 | 4.2L | V8 | Left | — |
| 2002 | Audi | A6 Quattro | 4.2L | V8 | Left | — |
| 2002 | Audi | A8 Quattro | 4.2L | V8 | Left | — |
| 2002 | Audi | S6 | 4.2L | V8 | Left | — |
| 2002 | Audi | S8 | 4.2L | V8 | Left | — |
| 2001 | Audi | A6 Quattro | 4.2L | V8 | Left | — |
| 2001 | Audi | A8 Quattro | 4.2L | V8 | Left | — |
| 2001 | Audi | S8 | 4.2L | V8 | Left | — |
| 2000 | Audi | A6 Quattro | 4.2L | V8 | Left | — |
| 2000 | Audi | A8 Quattro | 4.2L | V8 | Left | — |
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