The Red Dot 71R2100 Rotary Thermostat is a mechanical, variable-control thermostat designed for precise temperature regulation in mobile HVAC and heavy-duty vehicle systems. Featuring an 18-inch capillary tube, this thermostat provides responsive sensing and consistent clutch cycling across a broad operating range.
With an adjustable temperature range of 28°F to 62°F and a 6° clutch cycle differential, the 71R2100 delivers reliable on/off control for compressors and HVAC circuits in trucks, agricultural equipment, and off-highway applications.
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Part Type: Rotary Thermostat
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Red Dot Part No.: 71R2100
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Red Dot Factory Part No.: RD-5-4909-0P
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Control Type: Variable
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Capillary Length: 18″
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Temperature Range: 28°F – 62°F
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Clutch Cycle Range: 6°
Features & Benefits
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Mechanical rotary thermostat for dependable temperature control
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18″ capillary tube for flexible installation
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Wide operating range suitable for mobile HVAC systems
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Consistent clutch cycling for compressor control
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Proven design used across heavy-duty and off-highway equipment
Cross Reference Numbers
Texas Truck A/C: 850-9226
AirSource / MEI: 1318
Alliance: ABP N83 323088
AP Air: 210-916
Bergstrom: 651138
Case IH: 70500-C2, A42623
Climatech: BD1405, BD14050
CoolCab: 901270, 901274
CoolStar / MEI: 932-1206
Delco: 15-590
Euclid: E-807019, E-807044
Fleetrite: ZGG12631
Ford: D0TZ-19618A
Ford New Holland: D6NN-19N683B, D6NN-19N683C
Four Seasons: 35820, 35846
Kysor: 2375001 (Old: 404075)
Mack: 4379-RD549090, 7979-404075
Motivair: 1-1847, 44592
Navistar: 13011-C2
Omega: 32-10903
Primatech: PTAC1318
Red Dot (Aftermarket): 71R2100
Red Dot (Factory): RD-5-4909-0
Roadforce: RF889B404961
Terex: 9038467
Truck Air / MEI: 31352
TruckAC+: T6719
TTA/C: 13-4401
Interchange Numbers
03-14001, 1-1847, 1-2631, 11-3085, 1318, 207517, 207530, 232-8416, 2375001, 270-35, 32-10903, 35820, 35846, 404075, 4379-RD549090, 4379-RD549090P, 71R2100, 7979-404075, 850-9226, 9038467, 925640, 925642, 932-1206, 9533N395, 9533N415, 9533N416, A30-1800, A42623, A45-1033, ABP N83 323088, BD14050, C7AZ-19618-A, D0TZ-19618A, E-807019, E-807044, RDHRD549090P, RDT71R2100, SWI4506, ZGG12631
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