Personal menu

Our offices are closed for Thanksgiving. Orders placed online will be processed on Monday 12/1/2025.

My account

My account Close

Register Log in

Oil Coolers for Cummins 378, 504, 555, and 903 Engines

Oil Cooler for Cummins 378, 504, 555, and 903 Engines

We carry oil coolers for V6-378, V8-504, V8-555, and V8-903 engines. You can easily access our parts selection by using the product links listed below.

If you do not see the Cummins part you need, please use our quote request form or call us at 888.687.0539: our knowledgeable inside sales staff will gladly help you.

3040997

THREADED PLUG - SMALL V SERIES

Genuine Cummins Part

$77.36

Qty:

3073210

OIL COOLER - SMALL V SERIES

Genuine Cummins Part

$4,874.58

Qty:

4920064

OIL COOLER KIT - SMALL V SERIES

Genuine Cummins Part

$12,115.92

Qty:

DS-110848

OIL COOLER CORE - NH / NT 855

Surplus Item - Special Pricing

$107.34

Qty:

In Stock

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.

CID: 86714861

Oil Coolers for Cummins 378, 504, 555, and 903 Engines

3040997

3073210

4920064

DS-110848

Payment options