Cummins X15 Inframe Engine Rebuild Kit, New # 5579308

PAI Cummins ISX15 Inframe Rebuild Kit — ISX122-113 | Includes Piston Kit 5405828

Compatible with CPL 4343

Restore the performance, reliability, and service life of your Cummins ISX15 engine with this premium PAI in-frame rebuild kit, engineered specifically for heavy-duty applications and in-chassis overhauls.

This comprehensive kit includes Piston Kit 5405829 and essential components required to return your engine to dependable operating condition while minimizing downtime and rebuild costs.

Designed for precision fitment and long-term durability, PAI components are manufactured to meet or exceed OEM specifications, ensuring consistent performance under demanding operating conditions.

Why Choose PAI Industries?

Over 75 Years of Industry Experience
PAI Industries is a globally recognized manufacturer and supplier of heavy-duty diesel and natural gas engine components, trusted by fleets, rebuilders, and distributors worldwide.

Proven Reliability
PAI parts are engineered for durability, precision, and long service life in commercial trucking and severe-duty environments.

OEM-Level Quality Standards
All components are produced using strict quality controls to ensure proper fit, dependable operation, and performance comparable to original equipment.

Comprehensive Engine Coverage
PAI offers one of the industry’s most complete product lines for heavy-duty engines, providing reliable solutions across multiple makes and models.

Global Supply & Support
A large distribution network ensures consistent availability and dependable support when you need it most.