Clutch Installation Kit | Eaton Fuller K-4125 | FleetRun FR-DVTN186


Same Day Shipping

Order The Truck Parts You Need Now and Pay Later With Our Financing Option Available

Order Now, Pay Later

Need Help With Parts?

(872) 240-4144

Hassle Free Returns

6 Month / 50,000 Mile Warranty

Part Number

  • FleetRun: FR-DVTN186

Cross Reference Part Number

  • Eaton Fuller: K-4125
  • PAI: 900663
  • Freightliner / Alliance: ABP N25 K4125


    • Compatible with Non Metric Eaton Fuller RT Series Transmissions with a hydraulic clutch fork and 2.00 inch hinged clutch brake
    • Input Shaft Teeth Quantity: 18
    • Input Shaft Spline Quantity: 10
    • Input Shaft Diameter: 2.00 inches
    • Input Shaft Pilot End Diameter: 1.18 inches
    • Clutch Brake Type: 2 Piece
    • Clutch Release Fork Mounting Bolt Hole Quantity: 2
    • Pilot Bearing Inside Diameter: 1.18 inches
    • Pilot Bearing Outside Diameter: 2.83 inches
    • Front Bearing Cover Bolt Hole Quantity: 6
    • Input Bearing Inside Diameter: 2.36 inches
    • Input Bearing Outside Diameter: 4.33 inches
    • Clutch Brake Inside Diameter: 2.00 inches
    • Clutch Brake Thickness: 0.38 inches
    • Clutch Fork Bolt Thread Type: M12x1.24x40

    Kit Breakdown

    • 1x - Input Shaft | Eaton Fuller S-1659 - FeetRun FR-DVTN519
    • 1x - Snap Ring | Eaton Fuller 14750 - FleetRun FR-DVTN399
    • 1x - Snap Ring | Eaton Fuller 16980 - FleetRun FR-DVTN063
    • 1x - Front Bearing Cover | Eaton Fuller 20550 - FleetRun FR-DVTN312
    • 1x - Pilot Bearing | Eaton Fuller 5566505 - FleetRun FR-DVTN421
    • 1x - Cylindrical Ball Bearing | Eaton Fuller 81504 - FleetRun FR-DVTN018
    • 1x - Clutch Brake | Eaton Fuller 85541 - FleetRun FR-DVTN475
    • 1x - Clutch Release Fork | Eaton Fuller A-7786 - FleetRun FR-DVTN823
    • 1x - Gasket Kit | Eaton Fuller K-3453 - FleetRun FR-DVTN330
    • 2x - Hex Screw/Washer Assembly M12x1.24x40 | Eaton Fuller X-7C-1202M - FleetRun FR-DVTN399

    Please note: this is an aftermarket part, the use of other manufacturer's names, part numbers or trademarks is for informational purposes only.

    Please verify OEM part numbers before purchasing, FleetRun assumes no liability related to product use and fitment.

    Looking for a reliable clutch install kit for your semi truck's Eaton Fuller RT Series manual transmission? Look no further than FleetRun FR-DVTN186! Our kit includes everything you need for a smooth installation, replacing the OEM Eaton Fuller K-4125 clutch install kit.

    Compatible with non-metric Eaton Fuller RT series transmissions with a hydraulic clutch fork and 2.00 inch hinged clutch brake, this clutch installation kit is the perfect choice for Volvo, Freightliner, Peterbilt, Kenworth, and International big rigs.

    Eliminate gear rattle with our revolutionary shaft design, and eliminate leak paths with our advanced shift tower and clutch housing gaskets featuring a beaded surface.

    Our newly engineered front bearing cover ensures a smoother clutch brake surface and includes oil return grooves to ensure optimal lubrication for the input shaft. The kit includes a range of premium components such as the input shaft, snap rings, pilot bearing, cylindrical ball bearing, clutch brake, clutch release fork, clutch housing gaskets, clutch housing gasket, and cross shaft bushings.

    Our clutch installation kit exceeds OEM specifications, featuring high-quality components that are built to last longer and wear less than the original parts, as well as the being bearing cover engineered with oil return grooves to ensure optimal lubrication for the input shaft, resulting in a smoother clutch brake surface. Increase quantity and quality of the components in your semi trucks transmission without spending extra money.

    And with free shipping included, you can get everything you need without worrying about additional costs. Experience smoother shifting and a longer transmission life with FleetRun's FR-DVTN186 clutch installation kit.

    Don't settle for a subpar clutch installation kit - choose FleetRun FR-DVTN186 for a top-notch clutch install every time, that results in smoother shifts. And if you're looking for other clutch assemblies, we've got you covered with our heavy-duty options like the Eaton 108925-20AM/308925-20 and more. Visit our Shop Talk page for tips and troubleshooting from our expert technicians and shops.

    Order now and experience the difference that FleetRun quality can make for your semi truck.

    • 023-002-043
    • For other information such as tips and tricks or troubleshooting from technicians and shops visit our Shop Talk page from our menu