BorgWarner S400 Turbo Upgrade Kit – 360° Thrust Bearing, Step Gap Seals, Severe Duty – USP

Push more boost with confidence using this severe duty upgrade kit for BorgWarner S400 series turbos.

From USP, it’s packed with a 360-degree thrust bearing and step gap seals — built to handle high performance and racing applications.

Fits a ton of S400 variants: S467, S471, S475, S480, S483, S488, plus S410T, S410SX, and more.

Also works with PDI Big Boss and Bullseye turbos.

Part numbers cross to 171701, 171702, 169012, and others.

If you’re rebuilding for serious power, this is the kit you want.