53037100521 K03-2075EYD 5 88 Turbocharger Core for Audi A4 1.8T B6

LeadTurbo supplies the 53037100521 K03-2075EYD 5 88 turbocharger core as an aftermarket replacement application for Audi A4 1.8T B6 engines. This core is associated with the BEX/AVJ 190HP engine and uses OEM reference 5303-710-0521 for fitment verification. Verify your specific vehicle and engine code before ordering.

Key Specifications

• Part Number: 53037100521
• Product Type: Turbocharger Core (CHRA)
• Turbo Model: K03-2075EYD 5 88
• OEM Reference: 5303-710-0521
• Gross Weight: 2 kg
• Image Availability: Not currently available

This core is listed for Audi A4 1.8T B6 applications with BEX/AVJ engine codes. Use the part number and OEM reference to verify fitment against your specific vehicle configuration 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 application path is Audi > Audi A4 1.8T (B6) > Audi BEX AVJ 190HP. Use OEM reference 5303-710-0521 as a verification clue to confirm fitment against your specific vehicle configuration. Always verify the part number 53037100521, engine code, and production year before ordering to ensure the correct replacement application.

Technical Notes

The K03-2075EYD 5 88 core is a compact turbocharger component designed for 1.8T engine applications. This CHRA unit supports the BEX/AVJ 190HP configuration found in the Audi A4 B6. Technical verification should focus on the specific turbo model and OEM reference 5303-710-0521. Buyers should confirm the bearing housing and shaft alignment match their existing assembly. LeadTurbo provides technical fitment support to help identify the correct core for your rebuild or replacement project. Always cross-check the part number 53037100521 against your vehicle's service records before finalizing an order.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing and worldwide shipping for the 53037100521 K03-2075EYD 5 88 core. Technical fitment support is available to help verify the correct replacement application for Audi A4 1.8T B6 engines. When inquiring, provide the part number 53037100521, engine code BEX/AVJ, and required quantity to streamline the quotation process. This service helps repair shops, rebuilders, and distributors confirm the correct CHRA unit against OEM reference 5303-710-0521 before finalizing orders.