RE554015 Thermostat For John Deere

The part RE554015 is an engine coolant thermostat designed for John Deere power systems and machinery.

Supersedes older part numbers RE69076 and RE540379.

Temperature Rating: 180°F (approx. 82°C)

Dimensions: Height: ~3.0 – 3.2 in, Length: ~3.3 in

Function: Regulates coolant flow within the engine cooling system to maintain a consistent operating temperature and prevent thermal damage.

Common Applications & Compatibility:

Engine Models: John Deere PowerTech 4.5L, 6.8L, 9.0L, and 13.5L diesel engines (Tier 3 / Tier 4), including industrial engine model 6068HFG55.

Tractors & Machinery: Fits John Deere 6M, 6R, 7R, 8R Series tractors (2012–present), 6E series, S-series combines (S660, S670, S680, etc.), as well as select John Deere dozers, loaders, excavators, and forestry equipment.

RE554015 Thermostat For John Deere

RE554015 Thermostat