Cummins NTC400 Turbo Assembly (1989-1994) | OEM 3803279RX

Cummins NTC400 Turbo Assembly (1989-1994) – OEM 3803279RX

If your heavy-duty engine is struggling with power loss, increased fuel consumption, or excessive smoke, it’s time for a high-performance upgrade. The Cummins NTC400 Turbo Assembly is the definitive replacement part for the legendary NTC 400 Big Cam engines produced between 1989 and 1994. Built to meet or exceed original equipment manufacturer standards, the OEM 3803279RX ensures your powertrain remains reliable under the most demanding workloads.

Why Choose the NTC400 OEM 3803279RX Turbo?

The turbocharger is the heart of your engine’s aspiration system. A genuine-spec 3803279RX Turbo provides the exact pressure ratios required for the NTC400’s unique combustion cycle. Unlike generic aftermarket units, this assembly is balanced to high-speed tolerances, preventing premature bearing failure and ensuring a seamless fit with your existing manifold and oil lines.

Key Features & Benefits

• Optimized Airflow: Engineered for high keyword density and thermal efficiency, providing a consistent boost across the entire RPM range.

• Enhanced Fuel Economy: Precise turbocharging reduces wasted fuel by ensuring a more complete combustion process.

• Heavy-Duty Durability: Constructed with high-grade alloys to withstand the extreme temperatures of 1989-1994 NTC400 exhaust cycles.

• OEM Direct Fit: Part number 3803279RX guarantees a “no-modification” installation, saving you time and labor costs in the shop.

• Improved Torque Output: Regain the low-end pulling power your Cummins Big Cam was designed for.

Engine Compatibility & Technical Specs

• Engine Series: Cummins NTC 400 (Big Cam III & IV)

• Production Years: 1989, 1990, 1991, 1992, 1993, 1994

• OEM Part Number: 3803279RX

• Interchange Numbers: 3529040, 3803279, 3527039, 4033010

• Cooling Type: Oil Cooled

Vehicle Applications

This turbocharger assembly is widely used in Class 8 heavy-duty trucks and industrial equipment, including:

• Freightliner: Classic and FLD Models (1989-1994)

• Peterbilt: 379 and 359 series equipped with NTC400

• Kenworth: W900 and T800 models

• International/Navistar: 9000 series

• Industrial: Power generators and construction machinery using the NTC 400 platform.