OE Detroit DT12 Clutch Assembly - 430mm Freightliner A02-14135-000 A02-82500-001 K-4489CL NMU360-280-12

Restore the power transfer and shifting performance of your Freightliner or Western Star with this premium OE Detroit DT12 Clutch Assembly by FleetPro Parts & Tires. Manufactured by Illinois Auto Truck to strict Original Equipment (OE) standards, this heavy-duty 430mm assembly is specifically engineered for the Detroit DT12 automated manual transmission (AMT). Whether you are running a Cascadia or a 57X, this assembly provides the structural integrity and heat dissipation required for high-torque Class 8 trucks. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets and owner-operators nationwide.

Heavy-Duty AMT Performance: The OE Detroit DT12 Clutch Assembly Advantage

This OE Detroit DT12 Clutch Assembly (Part # NMU360-280-12) features a robust 430mm stamped-steel, single-plate design built around the ZF/Sachs 6-spring damper. Engineered with a precision 18-involute input spline, it ensures a flawless fit and instant engagement with the DT12 transmission’s input shaft. Note: With a massive torque rating of approximately 1,850 lb-ft, this assembly is built to withstand the immense pulling pressures of heavy-haul and long-haul operations without premature slippage or glaze-over.

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 is a professional-grade replacement for Detroit/Freightliner factory part numbers A02-14135-000 and A02-82500-001, as well as the Eaton K-4489CL interchange. Proudly manufactured in the USA by Illinois Auto Truck, this assembly ensures smoother gear transitions, reduced vibration, and an extended service life for your automated transmission system.

ZF/Sachs or LuK? Match your old part number. The Detroit DT12 left the factory with two non-interchangeable clutches. This unit is the ZF/Sachs 6-spring version — choose it if your original number is A02-14135-000, A02-82500-001, or K-4489CL. If your truck instead uses the LuK 5-spring clutch (A02-14108-001 / A02-14108-002 / A02-14108-003), order our NMU361-280-12 instead.

Vehicle Fitment & Compatibility

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

• Transmission: Detroit DT12 Automated Manual Transmission (AMT)
• Engine Compatibility: Detroit DD13, DD15, DD16
• Make/Models: Freightliner Cascadia, Western Star 47X, 49X, 57X

Direct Replacement & Cross-Reference Numbers:

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

• Detroit/Freightliner OEM: A02-14135-000, A0214135000, A02-82500-001, A0282500001
• Eaton / Aftermarket: K-4489CL, K4489CL
• Illinois Auto Truck / Aftermarket: NMU360-280-12

Technical Specifications

• Component Type: Stamped Steel AMT Clutch Assembly (ZF/Sachs 6-Spring)
• Diameter: 430mm (16.93")
• Input Spline: 18-Involute Spline
• Torque Rating: 1,850 lb-ft (DT12 Optimized)
• Product Level: OE (Original Equipment)
• Manufacturer: Illinois Auto Truck (Made in the USA)
• Distributed By: FleetPro Parts & Tires