R-5075-0P Red Dot Off-Road Backwall Heater & Air Conditioner – 12V, Fresh Air Intake

The Red Dot R-5075-0P Off-Road Backwall Heater/Air Conditioner packages the proven performance of the R-5045 series into a robust metal enclosure purpose-built for off-road applications. Mounted on the backwall, the unit delivers strong, evenly distributed airflow through multi-directional louvers, helping condition operator spaces quickly and consistently.

Designed with a fresh-air intake, the R-5075-0P supports applications that require outside air while maintaining dependable heating and cooling output. The system provides 33,000 BTU/hr of cooling and 46,000 BTU/hr of heating, paired with a three-speed blower to balance airflow and noise across operating conditions.

Operating on 12V DC and using R-134a refrigerant, the R-5075-0P is well suited for construction, mining, agricultural, and specialty off-highway equipment where durability and serviceability are critical.

Product Specifications

• Manufacturer: Red Dot

• Model Series: R-5075

• Model Number: R-5075-0P

• System Type: Backwall Heater & Air Conditioner

• Intake Configuration: Fresh Air Intake

• Voltage: 12 VDC

• Refrigerant Type: R-134a

Cooling Performance

• Cooling Capacity: 33,000 BTU/hr

  • @ 36°F refrigerant temperature

  • 80°F (26.7°C) wet bulb entering air

  • 9.7 kW @ 2.2°C

Heating Performance

• Heating Capacity: 46,000 BTU/hr

  • @ 150°F water-to-air differential

  • 13.5 kW @ 66°C

Air & Electrical

• Air Flow: 430 CFM (730 m³/h)

• Blower: One three-speed motor

• Current Draw: 21.8 amps @ 13.6 VDC

  • Includes 4 amps for A/C clutch

Physical

• Weight: ~60 lbs (listed)

• Dimensions: See product image #2

Installation Notes:

• Professional installation is required.

• Backwall, rooftop, and headliner A/C units require connection to an external A/C compressor (compressor and connection components not included).

• Additional components may be required to complete installation.

Cross Reference Numbers

• Texas Truck A/C: 950-1070-3-12

• AirSource – MEI: 18537

• CoolStar – MEI: 990-9450

• Primatech: PTAC10-9450

• Red Dot Aftermarket: R-5075-0

• Truck Air – MEI: 50-9450

• TruckAC+: T2337

• TTA/C: 90-5075-0

Interchange Numbers

• 10-9450

• 232-7850

• 4379-R50750

• 4379-R50750P

• R-5075-0P

• RDTR50750P