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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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John Deere 4-Cylinder 300 Series Turbochargers and Ring Sets

Discover our large selection of high-quality aftermarket popular parts parts for John Deere 4039, 4045, 4-202, 4-219, 4-239 and 4-276 engines, including Turbochargers and Ring Sets.

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-AR55759

PISTON RING SET (1-1/8 K, 1-3/32, 1-1.5MM, 4.1057" BORE, 1 CYLINDER SET)

$44.55

DS-AR70633

PISTON RING SET (2-3/32, 1-1.5MM, 3.8583" BORE, 1 CYLINDER SET)

$35.71

DS-AT18005

CONNECTING ROD (1.875" PIN)

$98.23

DS-R119874
Restocking Fee Applies

CAMSHAFT BEARING

$16.86

DS-R82820

CAMSHAFT

$238.30

DS-RE21076

CONNECTING ROD (1.375" PIN)

$78.66

DS-RE66820
Hassle-Free Return Item

PISTON RING SET (1-1/8 K, 1-3/32, 1-3.5MM, 4.1929" BORE, 1 CYLINDER SET)

$52.80

DS-RP1291

HEAD BOLT KIT

Set of 18 DS-R85363 Head Bolts

$62.93

DS-RP197

CAMSHAFT AND LIFTER KIT

$312.18

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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