71R2400 Red Dot Rotary Thermostat with 66 in. Capillary (Variable Control)

The Red Dot 71R2400 Rotary Thermostat is a variable, adjustable mechanical thermostat designed for dependable temperature regulation in mobile HVAC, heavy-duty truck, agricultural, and off-highway equipment applications. It features a 66-inch capillary tube, making it ideal for installations that require extended sensing length and flexible routing.

This thermostat operates within a 34°F to 52°F temperature range and includes a 5°F clutch cycle differential, helping maintain consistent evaporator temperatures while reducing compressor short cycling. The rotary adjustment design allows smooth, precise control and reliable performance in demanding operating environments.

• Part Type: Thermostat (Rotary Variable / Adjustable)

• Red Dot Part No.: 71R2400

• Red Dot Factory No.: RD-4125-66P

• Control Type: Rotary

• Type: Variable

• Capillary Length: 66″

• Temperature Range: 34°F – 52°F

• Clutch Cycle Range: 5°F

Features & Benefits

• Variable rotary control for accurate temperature adjustment

• Extended 66″ capillary for flexible installation and routing

• 34°F–52°F operating range for evaporator temperature control

• 5°F clutch cycle helps stabilize compressor operation

• Durable mechanical design for mobile and heavy-duty HVAC use

Cross Reference Numbers

Texas Truck A/C: 850-9233
AirSource / MEI: 1337
Alliance: ABP N83 323038, ABP N83 323068, ABP N83 323238
Bergstrom: 650653
Case IH: R52618
Climatech: BD1435
CoolCab: 901264
CoolStar / MEI: 932-1224
Euclid: E-807005
Four Seasons: 35859
John Deere: AR53324
Kysor: 2311001
Kysor (Old): 404442
Motivair: 1-1049
Murray: 207504
NDNS: ABPN83323038, ABPN83323068, ABPN83323238
Omega: 32-10918
Primatech: PTAC1337
Red Dot (Aftermarket): 71R2305, 71R2400
Red Dot (Factory): RD-4125-66, RD-5-11029-0P
Roadforce: RF2146506382
Truck Air / MEI: 24412, 31717
TruckAC+: T6726
TTA/C: 13-4405
Volvo: 176274, 30-2750267

Interchange Numbers

03-14016, 1-1049, 11-3086, 207504, 207504, 220-256, 232-8420, 35715, 35859, 404082, 404442, 432-2924, 4379-RD412566P, 4379-RD412566P, 71R2400, 850-9233, 932-1224, A45-1077, ABP N83 323098, ABP N83 323098, AM81010, AR52342, BD10350, E-807005, E-807006, RDHRD412566P, RDT71R2400, RDT71R2400, SWI4524, ZGG14812