SKU: 53037110000 | UPC: 4063984024703
BorgWarner K03 Turbo Repair Kit for VW & Audi 1.8T 1997-2006
The BorgWarner K03 Turbo Repair Kit (MPN 53037110000) provides a complete center housing rotating assembly (CHRA) for K03 turbochargers on VW and Audi 1.8T vehicles from 1997 to 2006. This direct replacement restores full boost pressure and prevents oil leaks or bearing failure common in worn turbos. Install it to maintain engine power and efficiency without replacing the entire turbo.
Key Features
- Genuine BorgWarner CHRA: Exact OE-spec assembly matches factory turbo design for seamless integration
- Precision-Balanced Components: Turbine and compressor wheels with shaft spin smoothly up to 200000 RPM reducing vibration
- Complete Kit Contents: Includes bearings thrust collar seals o-rings piston rings and heat shield
- Drop-In Compatibility: Fits K03-029 K03-073 K03-080 K03-529 housings without modifications
- High-Temperature Materials: Resists wear from oil contamination and extreme exhaust heat for longer life
Product Notes
- Inspect turbo housing for cracks before installing new CHRA
- Replace turbo oil feed line and gaskets during service for best results
- Standard ground shipping with tracking included
Installation Notes
- Professional installation recommended.
- Remove six housing bolts to access and swap CHRA cartridge
- Prime assembly with clean engine oil and rotate by hand before startup
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-2001 | Audi | A4 (B5) | 1.8T |
| 1999-2003 | Audi | A3 (8L) | 1.8T |
| 1999-2006 | Audi | TT (8N) | 1.8T |
| 1998-2005 | Volkswagen | Passat (B5) | 1.8T |
| 1999-2005 | Volkswagen | Jetta IV | 1.8T |
| 1999-2006 | Volkswagen | Golf IV | 1.8T |
| 1999-2005 | Volkswagen | New Beetle | 1.8T |
Why Choose BorgWarner?
- OE supplier to VW and Audi for millions of turbochargers
- Factory-direct quality with rigorous testing standards
- Engineered tolerances for consistent boost response
Frequently Asked Questions
- Q: Does this fit 2002 VW Golf 1.8T?
A: Yes for models with K03 turbo (engine codes AWP AWV AWD). Confirm housing number on your turbo. - Q: What materials are used in the CHRA?
A: Journal bearings are bronze-backed compressor wheel is aluminum turbine is inconel shaft is high-strength steel. - Q: What warranty applies?
A: 12-month unlimited mileage warranty when installed by certified shop with proof.
Shipping & Handling
- Method: Standard ground
- Availability: In stock – ships same or next business day
- Packaging: Secure foam-lined box 5.1 x 5.1 x 3.1 inches
- Weight: 0.68 lbs
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