4376172 | Cummins ISX Inframe Rebuild Kit APR NEW ISX3/ Signature 150MM liner

The 4376172 Inframe Rebuild Kit is engineered for Cummins ISX engines, including the NEW ISX3 and Signature series, featuring the updated 150MM Anti-Polish Ring (APR) liners. This comprehensive kit is ideal for restoring engine integrity without full disassembly, making it perfect for in-frame overhauls in fleet and heavy-duty applications.

Built to OEM specifications and manufactured in ISO 9001:2015-certified facilities, the kit helps restore compression, reduce oil consumption, and extend engine life. The 150MM APR liner offers enhanced protection against carbon polishing, helping ensure cleaner cylinder operation and improved durability.

Kit Contents:

• (6) (LTR) Piston Kits
  • (6) Top Piston Rings
  • (6) Piston Compression Rings
  • (6) Oil Piston Rings
• (6) LTR Engine Piston Assembly
• (12) Retaining Rings
• (6) Piston Ring Sets
• (6) Piston Pins
• (6) Cylinder Liner Kits
• (6) Cylinder Liners
• (6) Carbon Scraper Rings
• (6) Liner Seals
• (6) Liner Shims
• (6) ISX Connecting Rod Bearings
• (1) Main Bearing Set
• (7) Main Bearings (Pair)
• (2) Thrust Washers (Pair)
• (1) O-Ring Seal
• (1) Bypass Valve Plunger
• (1) Oil Pan Gasket
• (1) Upper Engine Gasket Set
• (1) O-Ring Seal
• (1) O-Ring Seal
• (1) O-Ring Seal
• (1) Electronic Control Module Gasket
• (1) Thermostat Housing Cover Gasket
• (1) Thermostat Housing Gasket
• (1) Turbocharger Gasket
• (1) Fuel Control Housing Gasket
• (4) Cavity Plugs
• (1) Camshaft Cover Seal
• (1) Camshaft Cover Seal
• (6) HPI Purple O-Ring Seals
• (1) Exhaust Manifold Gasket
• (4) Exhaust Manifold Gaskets
• (1) Exhaust Manifold Gasket
• (1) Rectangular Strip Seal
• (1) Cylinder Head ISX Gasket
• (6) HPI Yellow O-Ring Seals
• (1) Turbo Drain Flange Gasket
• (6) HPI Green O-Ring Seals
• (6) HPI/XPI O-Ring Seals
• (1) Grommet Seal
• (1) Connection Gasket
• (1) Camshaft Cover Gasket
• (1) Camshaft Cover Gasket

Warranty: 2 Year Parts and Labor Warranty