OE Eaton Endurant Clutch Assembly - 430mm PACCAR Navistar E74-1021 K-4488CL 104200-1 NMU363-280-12

• Restores Smooth Clutch Engagement
• Direct-fit Replacement for Several OEM Numbers
• Reliable and Fast Installation

Restore the peak performance and seamless shifting of your heavy-duty automated transmission with this premium OE Eaton Endurant Clutch Assembly by FleetPro Parts & Tires. Specifically engineered by Illinois Auto Truck to strict Original Equipment (OE) standards, this 430mm diaphragm-spring clutch is the primary choice for PACCAR and Navistar fleets. Whether you are operating a Peterbilt or Kenworth with a PACCAR MX engine, or an International with the Navistar A26, this assembly provides the precision engagement required for the most demanding long-haul routes. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets and owner-operators nationwide.

Advanced Self-Adjusting Technology: The OE Eaton Endurant Clutch Assembly Advantage

This OE Eaton Endurant Clutch Assembly (Part # NMU363-280-12) features a state-of-the-art push-type, self-adjusting design specifically built for the high-frequency actuation of automated manual transmission (AMT) environments. To ensure long-term durability and maximum uptime, it utilizes premium organic facing material paired with cushioned damping springs, engineered to minimize driveline shock and eliminate harsh vibrations. Note: Rated for a massive 1,850 lb-ft of engine torque, this assembly is designed to handle the raw power of the Cummins X15 and PACCAR MX-13 without sacrificing service life.

As we continue to build the largest inventory of commercial truck parts in Illinois, we prioritize drivetrain components that offer "drop-in" OE reliability. This unit serves as a direct professional-grade replacement for PACCAR part numbers E74-1021 and 104200-1, as well as Eaton kit K-4488CL. Proudly manufactured in the USA, this assembly ensures a smoother shifting experience, optimal fuel efficiency, and a significantly longer service life for your heavy-duty AMT system.

Vehicle Fitment & Compatibility

This heavy-duty OE clutch assembly is precision-engineered for the following commercial automated transmission applications:

• Transmission: Eaton Endurant HD Automated Manual Transmissions (AMT)
• Engine Compatibility: PACCAR MX (MX-11 / MX-13), Navistar A26, Cummins X15
• Make/Models: Peterbilt, Kenworth, International Trucks

Direct Replacement & Cross-Reference Numbers:

This complete assembly serves as a direct exact-fit replacement for the following part numbers:

• PACCAR OEM Numbers: E74-1021, E741021, 104200-1
• Eaton Interchange: K-4488CL, K4488CL
• Illinois Auto Truck / Aftermarket: NMU363-280-12

Technical Specifications

• Component Type: Push-Type Self-Adjusting AMT Clutch
• Diameter: 430mm (16.93")
• Friction Material: Premium Organic Facing
• Torque Rating: 1,850 lb-ft (Endurant HD Optimized)
• Product Level: OE (Original Equipment)
• Manufacturer: Illinois Auto Truck (Made in the USA)
• Distributed By: FleetPro Parts & Tires