BORGWARNER 178855 S400SX TURBOCHARGER – S467/83, 1.10 A/R, T4 HOUSING

Product Description

BorgWarner 178855 S400SX (S467/83, 1.10 A/R, T4) is a proven AirWerks performer for big-single street/strip builds and as the atmospheric charger in S300/S400 compounds. The 67.7mm extended-tip compressor and 83/74mm turbine are paired with a twin-scroll T4 1.10 A/R housing for strong top-end flow, durable journal-bearing reliability, and flexible orientation of the compressor and turbine covers.

BorgWarner S467, S400SX turbo, 178855, S400 turbocharger, 67.7mm compressor, 83mm turbine, T4 twin scroll 1.10 A/R, CPP Diesel BorgWarner, AirWerks S400, compound turbos Cummins Duramax Powerstroke

Fitment & Use

• Universal performance turbocharger commonly used on 5.9L/6.7L Cummins, 6.6L Duramax, and 7.3L/6.0L/6.4L/6.7L Power Stroke in custom single or compound setups.
• Requires matching T4 divided manifold, appropriate downpipe/outlet connection, oil feed/return, and charge plumbing (verify sizes below).
• Typical build range: ~400–1100+ HP depending on fueling, cam, drive pressure control, and overall setup.

Cross-Reference / Related BorgWarner Options

• BORGWARNER 177248 S400SX3 – S471/83, 1.10 A/R, T4
• BORGWARNER 179171 S400SX3 – S471/83, 1.10 A/R, RACE COVER, T4
• BORGWARNER 169012 S400SX – S464/83, 1.10 A/R, T6
• BORGWARNER 178789 S400SX Turbine Housing – 1.10 A/R, T4 (factory-style housing reference)

Key Dimensions

• Compressor (S467): ~67.7 mm inducer; common 5.0" inlet, 4.21" V-band outlet (verify your exact cover)
• Turbine: 83/74 mm wheel; 1.10 A/R T4 twin-scroll housing; typical 5.75" Marmon outlet (verify on your unit)
• Center Section: twin hydrodynamic journal bearings; adjustable housing orientation

Why Buy From CPP Diesel

• Genuine BorgWarner AirWerks inventory and knowledgeable diesel tech support
• Fast shipping and careful packaging
• Help with spec’ing singles, compounds, wastegate control, and hardware

FAQ

Will a 178855 S400SX bolt to my stock manifold?

No. This unit uses a T4 divided inlet. You’ll need a matching T4 manifold and compatible downpipe/outlet.

Is the S467/83 a good daily-driven single?

It can be, with proper fueling, gearing, converter, and drive-pressure management. Many builders prefer it as the low-pressure charger in S300/S400 compounds for faster spool and lower EGTs.

Do I need an oil feed restrictor?

Journal-bearing S300/S400 typically do not use a feed restrictor; ensure a free-draining -10AN to -12AN return and clean oil supply.

What supporting parts do I need?

A T4 divided manifold, correct downpipe/outlet, oil feed/return lines, charge piping to match 5.0" inlet/4.21" outlet (verify), quality clamps, and boost control hardware if running compounds.

Specifications for BORG WARNER 178855