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Our office is closed on Friday March 29th.

Our office is closed on Friday March 29th.

Parts for John Deere 4-270D Engines Block Marked R32020, R40850


Diesel Parts Direct carries a great selection of aftermarket parts for John Deere 4-270D engines, including fuel transfer pumps, oil pumps, water pumps, overhaul kits and gasket sets.

Most parts are serial number specific. Click here for more information on your ESN.

If you do not see the parts 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.

Engine Model Details



Block Marked
R32020, R40850

WATER PUMP (CASTING R26337, R27547, R34982, R41318, R44122)

Surplus Item - Special Pricing

$90.50

CONNECTING ROD BEARING (STANDARD)

$32.84

CONNECTING ROD BEARING (.010")

$30.39

CONNECTING ROD BEARING (.020")

$30.39

CONNECTING ROD BEARING (.030")

$30.18

FRONT CRANKSHAFT SEAL (WITH SLEEVE)

$27.20

FUEL INJECTOR (PENCIL TYPE)

MARKED 18270, 18421, 18646, 18660, 18767, 18768, 20364, 20494

$72.64

CYLINDER HEAD GASKET SET - 4-254D / 4-270D

$99.18

OVERHAUL GASKET SET (WITHOUT CRANKSHAFT SEALS) - 4-254D / 4-270D

$185.19

WATER PUMP REPAIR KIT (EARLY STYLE WITH HAIR PIN CLIP)

$78.48

WATER PUMP REPAIR KIT (LATE STYLE WITHOUT CLIP IN HOUSING)

$76.89

PISTON RING SET (1-1/8 K, 1-3/32, 1-1/4, 4.250" BORE, 1 CYLINDER SET)

$42.34

WATER PUMP OVERHAUL KIT - 4-270D / 6-404D

$114.40

CYLINDER SLEEVE (WITH SEALING RINGS, 4.250" BORE)

$91.07

THERMOSTAT (180degF)

$13.89

INTAKE VALVE - 4-270D / 6-404D (1.897" HEAD DIAMETER, 6.250" LENGTH, 45°)

$15.10

EXHAUST VALVE - 4-270D / 6-404D (1.710" HEAD DIAMETER, 6.228" LENGTH, 45°)

$15.57

CAMSHAFT BEARING

$12.94

REAR CRANKSHAFT SEAL WITH SLEEVE

$39.46

CYLINDER KIT (4.250" BORE)

$256.18

PISTON KIT (4.250" BORE, HIGH RING DESIGN)

$164.27

FUEL TRANSFER PUMP (THREADED PORTS, WITH MOUNTING GASKET)

$60.15

IN-FRAME OVERHAUL KIT - 4-254D / 4-270D (WITH ROD BOLTS)

Complete Overhaul Kit Also Available

Call for price

MAJOR ENGINE OVERHAUL KIT - 4-254D / 4-270D

In-Frame Kit Also Available

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CYLINDER KIT (HYPER-FORMANCE, HIGH COMPRESSION)

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MAJOR ENGINE OVERHAUL KIT - 4-254D / 4-270D

Call for price