53037100521 K03-2075EYD Turbocharger Core for Audi A4 1.8T
Aftermarket replacement core 53037100521 for K03-2075EYD turbochargers. Reference application includes Audi A4 1.8T (B6) BEX/AVJ 190HP. Verify part number and OEM reference 5303-710-0521 before ordering.
Orders without stock ship approximately 60 days after ordering. Estimated ship date if ordered today: .
Subtotal: US$ 80.00
Send an InquiryThis aftermarket replacement core, part number 53037100521, is designed for K03-2075EYD turbochargers in Audi A4 1.8T (B6) applications. It serves as a reference application for engines BEX and AVJ, supporting B2B buyers who verify fitment against OEM reference 5303-710-0521 before ordering.
Key Specifications
- Part Number: 53037100521
- Product Type: Core (CHRA)
- Turbo Model: K03-2075EYD 5 88
- Gross Weight: 2 kg
- OEM Reference: 5303-710-0521
- Image Status: Not currently available
This core is listed for Audi A4 1.8T (B6) applications with BEX and AVJ engine codes. Buyers should verify the part number 53037100521 and cross-check OEM reference 5303-710-0521 against their specific vehicle documentation. Confirm the turbo configuration and production year to ensure the correct replacement application before ordering.
Application & Compatibility
Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:
- AUDI > AUDI A4 1,8T (B6) > AUDI BEX AVJ 190HP
This core is listed for Audi A4 1.8T (B6) applications, specifically associated with BEX and AVJ engine codes producing 190HP. The reference application path is AUDI > AUDI A4 1,8T (B6) > AUDI BEX AVJ 190HP. Buyers should treat these as verification clues rather than confirmed fitment. Cross-check the part number 53037100521 and OEM reference 5303-710-0521 against your vehicle documentation. Confirm the specific turbo configuration and production year to ensure the correct replacement application before ordering.
Technical Notes
The K03-2075EYD 5 88 turbocharger model is a fixed-geometry unit. This core assembly includes the compressor wheel, turbine wheel, and bearing housing. Verify the specific turbo configuration and production year for your Audi A4 1.8T (B6) vehicle. Cross-check the part number 53037100521 against OEM reference 5303-710-0521. Confirm engine codes BEX or AVJ to ensure the correct replacement application. Technical fitment support is available to assist with verification before shipment.
B2B Supply
LeadTurbo supports B2B buyers with volume pricing and worldwide shipping for this core. Technical fitment support is available to assist with verification of part number 53037100521 and OEM reference 5303-710-0521. For faster quotation, provide the required quantity, destination country, and specific engine code BEX or AVJ. This helps confirm the correct replacement application for Audi A4 1.8T (B6) vehicles before shipment.
Product FAQ
AUDI and other product, brand and model names are the property of their respective owners and are used for reference and application-lookup only. LeadTurbo is not affiliated with or endorsed by AUDI.
Compatibility Verify part number 53037100521, engine code BEX/AVJ, vehicle application Audi A4 1.8T (B6), and OEM reference 5303-710-0521 before ordering. Confirm turbo configuration and production year for fitment.
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Frequently Asked Questions
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Complete Turbo Units
Complete turbo units designed for rigorous heavy-duty use where OEM units may fall short.
CHRA / Core Assemblies
Brand-new compatible CHRA cores — like-new performance at a fraction of replacement cost.
Turbine Wheels & Shafts
Precision-balanced turbine shafts engineered from inside out for superior durability.
Turbine Housings
Silicon-molybdenum (Si-Mo) nodular cast iron — engineered for extreme heat resistance.
Compressor Housings
OEM-matched geometry and surface finish — advanced casting and machining for perfect fitment.
Bearing Housings
Rock-solid platform engineered for high-output rebuilds — the foundation for performance.
Compressor Wheels
Aluminum, stainless steel, or titanium alloys — precision machined for superior responsiveness.
