New turbo 1.6 THP Citroen Peugeot 53039880425 53039880243 53039880217 53039880179 53039880121 53039880120 530398801045303-970-0425, 5303-970-0243, 5303-970-0217 5303-970-0179 5303-970-0121 0375L0

New Turbocharger Replacement K03 – PSA 1.6 THP (EP6 Engine)

Restore the high-torque performance and smooth power delivery of your vehicle with this brand-new premium replacement turbocharger. Engineered specifically for the 1.6 THP "Prince" engine, this unit features a Twin-Scroll design to eliminate turbo lag and provide instant response across the entire RPM range.

Detailed Vehicle Compatibility & Power Output

This turbocharger is a direct 1:1 replacement for the following models equipped with the 1.6 THP engine:

Engine Codes: EP6CDT, EP6DT, EP6CDTM, EP6CDTMD.

Technical Specifications & Cross-Reference

This unit replaces the BorgWarner/KKK K03 series. Verify compatibility using the following identification numbers:

Key Product Features

• 100% Brand New: Zero-mileage unit. Every component, including the Twin-Scroll turbine housing and wastegate actuator, is factory-new.
• Twin-Scroll Technology: Designed to separate exhaust pulses, maximizing kinetic energy to the turbine wheel for faster spooling and better efficiency.
• VSR High-Speed Balancing: Precision-balanced at speeds exceeding 150,000 RPM to eliminate vibrations, ensuring quiet operation and a long service life.
• High-Temp Resistance: Built with advanced alloys to withstand the extreme exhaust temperatures typical of the 1.6 THP direct-injection engine.

Critical Installation Requirements

The 1.6 THP engine is technically demanding; please follow these steps to protect your investment:

1. Replace the Oil Feed Pipe: Mandatory. The original oil pipe is prone to carbon buildup (coking) due to its proximity to the manifold. Using the old pipe is the #1 cause of immediate failure in new THP turbochargers.
2. Oil & Filter Service: Use only high-quality synthetic oil (PSA B71 2290 or B71 2312).
3. Prime the Turbo: Fill the oil inlet with clean oil and manually rotate the compressor wheel before the first start to ensure the bearings are lubricated.
4. Cooling System Check: Verify the operation of the electric auxiliary water pump, which continues to circulate coolant through the turbo after engine shutdown.