Diesel Fuel Injectors

Worn diesel fuel injectors cause hard starts, smoke, rough idle and poor fuel economy. Replacing a full set restores even fuel delivery across every cylinder. Internet Diesel carries more than 80 injector listings for heavy-duty engines.

Injectors for Cummins, Detroit, Caterpillar and Volvo

We stock remanufactured injectors for the Cummins N14, ISX, ISX15, ISL, ISM and 5.9L. We also stock injectors for the Detroit Diesel Series 60 12.7L and 14L and the DD15. For Caterpillar we carry the 3126, C10, C12, C13 and C15. For Volvo we carry the D12, D13 and D16. Many injectors are sold in sets of six, and a few new units are also available.

Ordering Tips

Match the part number on your old injector to the listing before you order. Most reman injectors carry a core charge that is refunded when a good core is returned within 30 days. For a full top-end job, add a head from our cylinder heads collection or a turbocharger.

Questions about fitment? Call 1-800-562-0360 or email sales@internetdiesel.com with your engine serial number. We ship nationwide from our Los Angeles warehouse at 4260 E. Washington Blvd. See our warranty policy or pay over time with Affirm.

Frequently Asked Questions

Should I replace all injectors at once?
Most mechanics replace the full set so every cylinder gets the same fuel delivery. It also saves labor later.

How do injector core returns work?
Return your old injectors in rebuildable condition within 30 days and the core charge is refunded after inspection.