BorgWarner 179641 S400 Turbine Housing T6 1.25 A/R 87mm

The BorgWarner 179641 is a high-performance S400 exhaust housing engineered for precision turbocharger applications. This turbine housing features a T6 flange configuration with a 1.25 A/R (Area/Radius) ratio, designed specifically for S400 turbochargers equipped with 87x80mm turbine wheels.

Key Features:

• T6 flange design for secure mounting and compatibility with S400 bearing housings
• 1.25 A/R ratio optimized to balance exhaust gas velocity and turbine efficiency
• Designed for 87mm turbine wheels (87x80mm configuration)
• Robust construction built to withstand high-temperature exhaust environments
• Adjustable housing orientation allows for clocking to fit specific installation requirements

This exhaust housing is ideal for diesel performance applications and custom turbo builds where precise exhaust flow characteristics are critical. The 1.25 A/R ratio provides excellent top-end power while maintaining responsive spool characteristics. Compatible with BorgWarner S400SX series turbochargers and commonly used in heavy-duty diesel applications including agricultural, commercial truck, and performance diesel builds.