+ applicable tax
A fixed electronic thermostat replacement for John Deere AT439838 cab air-conditioning applications. Its sensing probe monitors the evaporator to control compressor cycling. This is not an engine coolant thermostat.
John Deere identifies AT439838 in selected 317G, 318G, 320G, 325G, 331G and 333G machines and selected J/K-series dozers. Confirm the serial-specific parts catalog, original reference, terminal arrangement and probe routing. Similar housings can have different control settings.
Preserve the original probe placement and wiring arrangement according to the machine service procedure. Do not cut or sharply bend the sensing assembly. No adjustable temperature knob is included.
This is a replacement component, not an equipment-OEM-branded service part. OEM names and part numbers identify compatibility.
AI-enhanced reference image. Confirm the OEM replacement reference and connection details before ordering.
Save 11%Complete 11" single stage clutch kit for John Deere 1020, 1520, 2030, 2440, 2630, 2640 utility tractors and 300, 301, 302, 400, 401 industrials. Includes pressure plate (3 lever, 6 spring), woven organic disc (15 spline), release bearing, and pilot bearing. Everything you need to split the tractor once. Replaces RE22610, AR100649, and AT30046. Save over $45 vs the competition.
Replacement A/C condenser core for John Deere AT207545. Parallel-flow design, 32.75 x 12 x 0.75-inch listed core size and male O-ring fittings. Core only; fans and shroud are not included.
Replacement fixed electronic cab A/C thermostat for John Deere AT439838. Three-terminal module with attached sensing lead and copper probe. An evaporator control, not an engine coolant thermostat.
