S&S Truck Parts (Newstar) DS404 INTER AXLE DIFF ASSY Part No: C385
$202.18
The C385 DS404 Inter Axle Diff Assembly is engineered to balance torque between tandem rear axles in heavy-duty trucks. Built for strength and durability, this assembly supports smooth driveline operation and enhanced traction under load. Manufactured to withstand extreme torque forces and demanding road conditions, it provides reliable performance for fleets and owner-operators seeking long service life and dependable axle synchronization.
Specifications
The C385 DS404 Inter Axle Differential Assembly is a precision-built driveline component designed for tandem axle heavy-duty trucks. It plays a critical role in distributing torque evenly between forward and rear drive axles, helping maintain traction and reduce drivetrain stress. Manufactured using high-strength materials, this assembly is built to endure high torque loads, heavy hauling conditions, and extended mileage demands. Ideal for vocational, construction, and long-haul applications, the C385 ensures smooth power transfer, minimized wear, and optimal differential performance in demanding commercial trucking operations.
Weight
12.2
Compatibility
Freightliner Classic — 1995–2010
Freightliner Columbia — 2001–2010
Freightliner Cascadia — 2008–2015 (DS404 spec models)
Kenworth T800 — 1995–2023
Kenworth W900 — 1995–2023
Peterbilt 379 — 1987–2007
Peterbilt 389 — 2008–2023
International 9400i — 1998–2008
Freightliner Columbia — 2001–2010
Freightliner Cascadia — 2008–2015 (DS404 spec models)
Kenworth T800 — 1995–2023
Kenworth W900 — 1995–2023
Peterbilt 379 — 1987–2007
Peterbilt 389 — 2008–2023
International 9400i — 1998–2008
Alternative Part Numbers
- Dana Spicer DS404
- Eaton DS404
- Meritor C385
- Spicer 404IDA
- Spicer C385
