200 Bangor St, Lindenhurst, NY 11757 1-631-991-7700 sales@usepny.com
1-Year Unlimited Mileage Warranty

Remanufactured
Cummins ISX Engines

Factory-rebuilt ISX engines from US Engine Production. Every engine CNC-machined to exact tolerances, assembled with new OEM-spec components, and dyno-tested in our Lindenhurst, NY facility. Up to 60% less than new.

In-House Remanufacturing Dyno Tested Ships in 24-48 hrs
Built In-House Since 1985
478,000+ Engines in Stock
Nationwide Shipping
100,000+ Engines Built
Special Offer: Free Shipping on ISX15 Engines For a limited time, get FREE nationwide shipping on all remanufactured ISX15 CM2250 and CM2350 engines. Call now to take advantage of this offer!
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Remanufactured ISX Engines For Sale

Click any engine below for full specifications, common problems, and pricing

Browse by ISX Generation

Select an engine generation to explore detailed guides and available inventory

Why Buy Your ISX Engine From Us?

US Engine Production is a precision remanufacturing facility, not a broker or middleman

In-House Remanufacturing

Every ISX engine is completely disassembled, CNC-machined, and rebuilt in our Lindenhurst, NY facility. Complete quality control from start to finish.

Dyno Tested

Every engine is mounted on our dynamometer test stand for comprehensive break-in testing: HP, torque, oil pressure, compression, fuel system, and electronics.

1-Year Unlimited Mileage Warranty

No mileage caps. No fine print. We stand behind every ISX engine we build with our industry-leading warranty.

Up to 60% Less Than New

Same performance and reliability as a factory-fresh engine at a fraction of the cost. Smart choice for fleets and owner-operators.

Ships in 24-48 Hours

Most in-stock ISX engines ship within 24-48 hours of order confirmation. Nationwide delivery to all 50 states.

Since 1985 - 100,000+ Engines Built

Over 38 years of diesel engine remanufacturing experience. Our certified technicians know ISX engines inside and out.

ISX Engine Technical Guides

Expert troubleshooting, maintenance tips, and ISX engine news

Top 5 Cummins ISX15 CM2350 Problems and How to Fix Them

The 5 most common Cummins ISX15 CM2350 engine problems: aftertreatment failures, EGR issues, XPI fuel pump failures, turbo problems, and crankcase ventilation. Expert solutions included....

ISX CM870 vs CM871: What Changed and Why It Matters

Complete comparison of the Cummins ISX CM870 and CM871 engines covering emissions systems, fuel injection, turbocharger differences, common problems, and which engine is the better choice....

Need a Remanufactured ISX Engine?

Call us now or request a free quote. Our ISX specialists are ready to help.

200 Bangor St, Lindenhurst, NY 11757 | Mon-Fri 8am-6pm ET