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

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John Deere 4-Cylinder 300 Series Oil Coolers and Oil Seals

Discover our large selection of high-quality aftermarket lubrication system parts for John Deere 4039, 4045, 4-202, 4-219, 4-239 and 4-276 engines, including Oil Coolers and Oil Seals.

If you do not see the John Deere part you are looking for, please use our quote request form or call us at 888.687.0539: our knowledgeable inside sales staff will gladly assist you.

DS-AR67942
Hassle-Free Return Item

FRONT CRANKSHAFT SEAL

$15.18

DS-AR79464

OIL PUMP (2.000" GEARS)

$217.50

DS-RE31929

OIL COOLER (6 PLATE, 90deg ELBOWS, DOUGHNUT TYPE)

$230.12

DS-RE55343
Hassle-Free Return Item

OIL PUMP (1.625" GEARS, 3 BOLT BACK PLATE)

$209.25

DS-RE61767

OIL COOLER (6 PLATE, STRAIGHT NIPPLES, DOUGHNUT TYPE)

Call for price

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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