4090008 | Inframe Engine Rebuild Kit for Cummins, ISM, ISM-330, ISM-335, ISM-400, ISM-425, ISM-450, ISM-500, ISM11M-450, L10, M11, QSM

The 4090008 Inframe Rebuild Kit is a complete, high-performance solution for overhauling a range of Cummins® mid-range and heavy-duty engines, including ISM, M11, L10, and QSM models. Engineered for in-chassis engine restoration, this kit is ideal for reducing oil consumption, restoring compression, and extending engine life—without the need for full engine removal.

All included components are precision-manufactured to meet or exceed Cummins OEM specifications, ensuring proper fit and long-lasting performance. The kit is built in ISO 9001:2015-certified facilities and is widely used in fleet maintenance, vocational trucks, and off-highway equipment.

Key Features:

• Compatible with a wide range of Cummins models:
  ISM-330, ISM-335, ISM-400, ISM-425, ISM-450, ISM-500, ISM11M-450, M11, QSM11, and L10

• Ideal for in-frame engine rebuilds—no need to remove engine from chassis

• Components designed to restore power, reduce emissions, and increase reliability

• Trusted quality from manufacturers using ISO-certified processes

• Backed by a standard 2-year parts warranty

Kit Contents: 

• (6) Piston Kits
  • (6) Pistons
  • (12) Piston Pin Retainers
  • (6) Piston Pins
  • (6) Piston Ring Sets
    • (6) Oil Control Rings
    • (6) Second Piston Rings
    • (6) Top Piston Rings
• (6) Cylinder Liner Kits
  • (6) Cylinder Liners
  • (6) Crevice Seals
• (12) Connecting Rod Bearings
• (1) O-Ring Seal
• (1) Oil Pan Gasket
• (2) Lower Thrust Washers
• (1) Main Bearing Set
  • (1) Main Bearing Set
  • (4) Upper Thrust Washers
• (1) Upper Engine Gasket Set
  • (1) O-Ring Seal
  • (6) Exhaust Manifold Gaskets
  • (1) O-Ring Seal
  • (1) Turbocharger Gasket
  • (1) Cover Plate Gasket
  • (19) O-Ring Seals
  • (1) Rocker Cover Gasket
  • (1) Turbocharger Gasket
  • (2) Turbo Hose O-Ring Seals
  • (1) Seal
  • (3) Screws
  • (1) O-Ring Seal
  • (1) Turbo Oil Inlet O-Ring Seal
  • (1) Gasket
  • (1) Gasket
  • (1) O-Ring Seal
  • (1) O-Ring Seal
  • (1) O-Ring Seal
  • (2) O-Ring Seals
  • (2) O-Ring Seals
  • (2) O-Ring Seals
  • (6) Injector Top O-Ring Seals
  • (1) Turbocharger Gasket
  • (1) Turbocharger Gasket
  • (6) Grommets
  • (1) Rocker Lever Housing Gasket
  • (1) Cylinder Head Gasket
  • (1) Connection Gasket
  • (6) Injector Mid O-Ring Seals
  • (6) Injector Bottom O-Ring Seals
  • (1) Gasket
  • (7) Washers
  • (2) Ring Seals

Warranty:

2-Year Parts and Labor Warranty