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

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

John Deere 4-Cylinder 350 Series Thermostats and Water Pumps

Discover our large selection of high-quality aftermarket cooling system parts for John Deere 4045 engines, including Thermostats and Water Pumps.

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.


THERMOSTAT (180degF)

$12.04

THERMOSTAT (180degF)

$13.77

THERMOSTAT

$11.76

WATER PUMP (STANDARD FLOW, CAST IRON, FINS ON BOTH SIDES)

$181.25

THERMOSTAT - 4045H POWERTECH 16 VALVE TIER 3

PISTON MARKED RE521616, RE515037

$13.01