Product Description

BorgWarner 176806 S400SX4 Turbocharger — S475/83, 1.10 A/R, T4 Divided

The BorgWarner 176806 S400SX4 pairs a 75mm extended-tip compressor with an 83mm turbine and a 1.10 A/R T4 divided housing for serious airflow and rock-solid reliability. Built on the proven AirWerks S400 platform with twin hydrodynamic journal bearings, it’s a favorite for high-power street, sled pull, and race builds—either as a big single or an atmospheric charger in S300/S400 compounds.

Why this S475 works

• Extended-tip 75mm compressor for high mass flow and strong top-end power.
• 83mm turbine in a 1.10 A/R T4 divided housing balances drive pressure and spool.
• Journal-bearing center section for durability under high boost and heat.
• Adjustable compressor/turbine housings and ported-shroud cover for flexibility.

Fitment & Use

Universal performance turbo. Commonly used on high-output Cummins 5.9L/6.7L, Power Stroke 7.3L, and Duramax 6.6L builds. Requires a T4 divided manifold, proper oil feed/return, adequate fueling, intercooler capacity, and a matching downpipe/v-band connection. Not CARB legal for pollution-controlled vehicles on public roads.

Cross-Reference / Alternatives (BorgWarner on CPP Diesel)

• BORGWARNER 177101 S400SX3 — S475/83, 1.10 A/R, T4
• BORGWARNER 171702 S400SX4 — S475/96, 1.32 A/R, T6
• BORGWARNER 169011 S400SX4 — S470/83, 1.58 A/R, T4
• BORGWARNER 178855 S400SX — S467/83, 1.10 A/R, T4
• BORGWARNER 179176 S400SX — S476/87, 1.10 A/R, T6
• BORGWARNER 176811 Turbine Housing — 83mm, 1.10 A/R, T6
• BORGWARNER 178789 Turbine Housing — 1.10 A/R, T4

FAQs

What horsepower range can the 176806 support?

With adequate fuel and tuning, the S475/83 can support roughly 500–1050 HP as a single. In compound setups it can feed significantly more when properly engineered.

Is the 176806 wastegated?

No. It is a non-wastegated AirWerks S400. External control is sometimes added in high-boost or compound configurations.

What manifold and flange does it use?

A divided T4 inlet manifold is required. The compressor inlet is 5.0" hose type and the outlet uses a V-band.

Is this turbo CARB legal?

No. This is a motorsports/performance component and is not CARB legal for on-road use in emissions-controlled vehicles.

Specifications for BORG WARNER 176806