Coach Bus Major Components

Coach Bus Major Components – EPA 2021 and CARB 2022 Products

Available on the X12 EPA 2021 and CARB 2022 engines in the United States and Canada.

Only EPA 2021 engines are eligible to purchase EPA 2021 Extended Coverage programs.
Only CARB 2022 engines are eligible to purchase CARB 2022 Extended Coverage programs. 

Major Components Coverage includes:

  • Registered parts and labor
  • No deductible
  • Covers these major components:
    • Cylinder Block Casting
    • Cylinder Head Casting
    • Crankshaft Forging
    • Camshaft Forging
    • Cam Follower Assembly
    • Connecting Rods and Caps
    • Intake Manifold Castings
    • Aftercooler Housing
    • Rocker Lever Assembly
    • Rocker Lever Housing
    • Gear Train Gears
    • Brake Housing
    • Brake Piston
    • Flywheel (new)
    • Water Pump (new)

Major Components Coverage & Pricing – EPA 2021 and CARB 2022 Products


Coverage purchased must be documented on a Cummins Extended Coverage Certificate.  The certificate must be signed and dated by the customer.  For complete coverage details see legal description: (Bulletin PMB -  5410614)

Questions on coverage content or certificate registration contact: Local Factory Representative or Cummins Distributor