BorgWarner 176391 S400 Turbocharger Repair Kit

The BorgWarner 176391 is a comprehensive repair kit designed specifically for S400 and S400S series turbochargers. This genuine BorgWarner service kit contains all the essential internal components needed to rebuild and restore your turbocharger to factory specifications.

Kit Contents:

• Four retaining rings for secure component installation
• Two journal bearings for smooth shaft operation
• Two piston rings (purple, turbine side) for proper sealing
• One spacer for correct component positioning

This OEM repair kit is engineered to precise tolerances and manufactured from high-quality materials to ensure reliable performance and extended service life. Compatible with BorgWarner AirWerks S400 series turbochargers commonly found in diesel performance and heavy-duty applications, including Detroit Diesel Series 60 engines. The 176391 kit provides a cost-effective alternative to complete turbocharger replacement while maintaining OEM quality standards.