• Product Description
  • Product Information
  • Warranty Policy
Our Long Block Engine Includes:


  • Cam/Main/Rod Bearings  
  • Oil Pump  
  • Timing Gears  
  • Camshaft  
  • Pistons  
  • Valves  
  • Connecting Rods  
  • Piston Rings  
  • Valve Guides  
  • Gaskets  
  • Push Rods  
  • Valve Keepers  
  • Lifters  
  • Rocker Arms  
  • Valve Springs  


  • Call us today with any questions and to verify this engine will work for you:

    (631)991-7700

    Name Cummins 6CT Reman Long Block Engine For Federal Motors
    SKU USCUM6CT83RLBT-FM
    Brand Cummins
    Condition Remanufactured
    Part Type Long Block Engine
    Aspiration Turbocharged
    Liters 8.3
    Block L
    Designation 6CT
    Fuel DIESEL
    Fuel System Control U/K
    Vin Code U/K
    Image Gallery N/A
    We stand behind our unbeatable quality with a One year unlimited mileage warranty!
    - available on most engines

    Cummins 6CT Reman Long Block Engine For Federal Motors

    *Detailed engine photos are available upon request*


    One Year Unlimited Mileage Warranty!


    The average leadtime is between 3 to 5 days



    Call For Better Pricing!




    Be the first to review this product

    Availability: In stock

    SKU:USCUM6CT83RLBT-FM

    $6,900.00

    Vehicle application fitments

    YearMakeModelFueltypeLiterEnginefamilyVinBlockEnginetypeFitment Notes
    1989Federal MotorsFederal MotorsDIESEL8.3L6CT-LCumminsN/A
    1990Federal MotorsFederal MotorsDIESEL8.3L6CT-LCumminsN/A
    1991Federal MotorsFederal MotorsDIESEL8.3L6CT-LCumminsN/A
    1992Federal MotorsFederal MotorsDIESEL8.3L6CT-LCumminsN/A
    Prop 65 Warning
    The State of California requires that this warning to be posted for California residents purchasing products.
    WARNING: Products may contain one or more chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.