Cummins ISX CM870/CM871 Inframe Rebuild Kit – New

Interstate-McBee Cummins ISX APR Inframe Rebuild Kit – M-4376175 Liner 152mm

Includes Piston Kit 4376243

Compatible with multiple CPL numbers: 1437, 2732, 3229, 3459, 3775, 8287, 8288, 8520, 8523, 8550

Product Overview

Restore the performance, reliability, and efficiency of your Cummins ISX APR engine with this complete Interstate-McBee inframe rebuild kit. Engineered for heavy-duty applications, this kit provides all the critical internal components needed to perform a high-quality rebuild without removing the engine from the chassis.

Designed to meet or exceed OEM specifications, this kit delivers the durability and precision required to keep your equipment running strong under demanding conditions.

Why Choose Interstate-McBee?

✔ Over 75 Years of Proven Experience
Founded in 1947, Interstate-McBee has built a legacy of engineering excellence, reliability, and consistent quality.

✔ Trusted American Manufacturer
A recognized U.S.-based manufacturer and distributor of diesel and natural gas engine components, serving fleets, rebuilders, and technicians worldwide.

✔ Nationwide Support & Availability
With major facilities in Ohio (HQ), Florida, Texas, California, and Nebraska, you get reliable product availability and fast support when it matters most.

Why This Kit Is a Smart Investment

✔ Complete Inframe Rebuild Solution
Everything you need for a professional, efficient engine rebuild in one package.

✔ OEM-Level Quality & Precision
Manufactured to meet or exceed OEM standards, ensuring proper fit and long-term performance.

✔ Reduced Downtime
Minimize labor time and get your truck back on the road faster.

✔ Built for Heavy-Duty Performance
Designed to withstand extreme loads, heat, and demanding operating conditions.

✔ Protect Your Investment
Extend engine life and avoid costly failures with high-quality internal components.

Built for Performance. Backed by Experience.

When you choose Interstate-McBee, you're not just buying parts — you're investing in proven durability, nationwide support, and a brand trusted for over seven decades.

Rebuild it right. Keep your truck working. Protect your bottom line.

Cummins ISX APR Inframe Rebuild Kit – Contents

This comprehensive kit includes all essential components required to complete a reliable inframe overhaul for Cummins ISX APR engines.