4024881 | Inframe Rebuild Kit for Cummins N14, New N14-310/330/350/370E/425E

The 4024881 In‑Frame Rebuild Kit is a high-quality solution designed to restore performance and extend the service life of Cummins N14 diesel engines. Ideal for on-highway and heavy-duty applications, this comprehensive kit enables a full engine refresh without the need to remove the engine from the chassis. Every component in the kit is manufactured to OEM specifications and meets ISO 9001-certified standards, ensuring reliability and durability in demanding operating environments.

Key Features

• Designed for Cummins N14 Engines
  Compatible with various N14 CPL ranges, including N14 Celect and Celect Plus platforms.

• Complete Internal Component Coverage
  Includes pistons, piston rings, liners, connecting rod bearings, main bearings, gaskets, and seals—everything needed for a full in-frame overhaul.

• OEM-Equivalent Quality
  All parts are produced in ISO 9001-certified facilities and meet or exceed Cummins factory standards.

• Warranty & Reliability
  Backed by a 2-year, unlimited mileage warranty when installed per manufacturer guidelines.

Kit Contents:

• (12) Connecting Rod Bearings
• (1) Main Bearing Set
• (6) Cylinder Kit
  • (6) Cylinder Liners
  • (6) Piston Pins
  • (6) Liner Seal Kit
    • (6) Liner Crevice Seals
    • (12) Liner Seals
    • (12) Retaining Rings
  • (6) Piston Crowns
  • (6) Piston Ring Set
  • (6) Piston Skirts
• (1) Oil Pan Installation Kit
• (1) Upper Engine Gasket Set
  • (1) Turbo Oil Inlet O-Ring Seal
  • (3) Rocker Lever Cover Gaskets
  • (1) Rectangular Ring Seal
  • (1) Gasket
  • (1) Ring Seal
  • (1) Thermostat Housing Gasket
  • (3) Exhaust Manifold Gaskets
  • (1) Thermostat Housing Gasket
  • (3) Cylinder Head Gaskets
  • (3) Rocker Lever Housing Gaskets
  • (3) Water Bypass O-Ring Seals
  • (6) Injector Top O-Ring Seals
  • (6) Injector Mid O-Ring Seals
  • (6) Injector Bottom O-Ring Seals
  • (1) Cap screw Gauge
  • (12) Fuel Crossover O-Ring Seals
  • (1) Turbo Oil Drain Gasket
  • (3) Manifold Gaskets
  • (6) Gaskets
  • (6) O-Ring Seals
  • (1) Thermostat Housing Gasket

Warranty:

2-Year, Unlimited Mileage, Parts and Labor Warranty