Cummins X15 Engine Inframe Overhaul Rebuild Kit APR

Interstate-McBee Cummins ISX APR Inframe Rebuild Kit – Part: M-5579308
Includes Piston Kit M-5405828

Compatible with CPL number 4343

Why Choose Interstate-McBee?

Over 75 Years of Industry Excellence
Founded in 1947, Interstate-McBee has built a long-standing reputation for engineering excellence, consistent quality, and reliability.

Trusted U.S. Manufacturer & Distributor
We are a recognized manufacturer and distributor of diesel and natural gas engine components, serving the heavy-duty industry worldwide.

Strong U.S. Presence for Dependable Support
With 5 main locations across the U.S. — Ohio (Headquarters), Florida, Texas, California, and Nebraska — we ensure product availability and fast, dependable support.

Why This Kit Is the Smart Choice

• Complete Inframe Solution: Designed specifically for Cummins ISX APR engines.

• OEM Quality: Manufactured to meet or exceed original equipment specifications.

• Engine Protection: Reduces downtime and safeguards your engine investment.

• Trusted American Brand: Backed by decades of experience and nationwide support.

When you choose Interstate-McBee, you're not just buying parts — you're investing in proven durability, reliable performance, and peace of mind.

"Image may be for illustrative purposes only. The kit contents shown represent the actual parts included."