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Our office will be closed 9/7/2026 in observance of Labor Day. Orders placed during this time will be processed when our office opens 9/8/2026.

Our office will be closed 9/7/2026 in observance of Labor Day. Orders placed during this time will be processed when our office opens 9/8/2026.

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Cummins ISC, QSC and 6CTA 8.3 L Fuel Injectors

Cummins 6CTA/ISC/QSC Fuel Injector

Boost your Cummins C Series engine’s efficiency with fuel injectors from Diesel Parts Direct. Problems such as increased fuel consumption or starting issues can stem from faulty, clogged or leaking fuel injectors. Once you notice a rough or violent idle in your 8.3L engine, visit our online store, where you’ll find a range of new and remanufactured 8.3 Cummins injectors for sale.

Whether you need a replacement for the ISC or QSC engines, we’ve got the 8.3 Cummins injectors to meet all models and budgets. Send in your faulty injector cores to receive fast credit and savings on your purchases, along with a 12-month warranty.

Save money and time by shopping for fuel injectors at Diesel Parts Direct.

3802485

FUEL INJECTOR - ISC / QSC (BOSCH)

Genuine Cummins Part

$631.20

4025299

FUEL INJECTOR - ISC / QSC

Genuine Cummins Part

$467.79

888.687.0539 (U.S.)|225.706.4858 (Int.)

Monday-Friday 7am-5pm CST
8784 S. Choctaw Dr. Baton Rouge, LA 70815
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Caterpillar® and all of the Caterpillar® engine models listed on this website are registered trademarks of Caterpillar, Inc. Cummins® and all of the Cummins® engine models listed on this website are registered trademarks of Cummins. Detroit Diesel® and all of the Detroit Diesel® engine models listed on this website are registered trademarks of Daimler AG. John Deere® and all of the John Deere® engine models listed on this website are registered trademarks of John Deere. Allison Transmission® and all of their transmission models listed on this website are registered trademarks of Allison Transmission®. Diesel Parts Direct is not an authorized dealer for Caterpillar, Cummins, Detroit Diesel, John Deere, or Allison Transmission. None of the parts beginning with "DS" or "R" are genuine Caterpillar, Cummins, Detroit Diesel, John Deere, or Allison Transmission items.

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