71R8430 Red Dot Bulbless Block-Type Expansion Valve – Plate Mount, 53.5 PSIG @ 90°F

The Red Dot 71R8430 Bulbless Block-Type Expansion Valve is a plate-mount TXV engineered for mobile HVAC systems that require stable refrigerant control without an external sensing bulb. Bulbless block designs regulate internally, reducing components and improving durability in high-vibration, high-duty applications.

This model features an 8.5°F superheat rating and a 53.5 psig pressure limit at 90°F, making it suitable for sleeper and cab systems that operate across wide load and ambient ranges. The M6 x 1.0-6H stud mounting and plate/flange connections support secure installation and consistent alignment in OEM block configurations.

Use the specifications and interchange numbers below to confirm the correct match before ordering.

Product Specifications

• Part Type: A/C Expansion Valve

• Valve Style: Bulbless Block-Type

• Mounting: Bulbless block, M6 x 1.0-6H stud mount

• Red Dot Part No.: 71R8430

• Factory No.: RD-5-8936-0P

• Superheat Rating: 8.5°F

• Pressure Limit: 53.5 psig @ 90°F

• Rated Capacity (Tonnage): ††† (verify by application)

Connections (Plate / Flange Mount):

Hose Side

• Inlet: #6 Plate (Flange) Mount

• Outlet: #10 Plate (Flange) Mount

Evaporator Side

• Inlet: #8 Plate (Flange) Mount

• Outlet: #8 Plate (Flange) Mount

OEM & Interchange Numbers

Aftermarket / Interchange:

• Texas Truck AC: 450-6551, 450-6551A

• AirSource / MEI: 1611, 1611G, 1668

• Alliance: ABP N83 308141, ABP N83 308409

• Bergstrom: 1000293538, 1001443771, 540057

• Climatech: EA1465, EA14650

• CoolCab: 932151

• CoolStar / MEI: 520-1210, 520-1225

• Euclid: E-805059

• Fleetrite: ZGG709020, ZGG709039

• Kysor: 1899030 (404334 old)

• Omega: 31-31026, 31-31026-AM

• PACCAR: 540057BSM, F90-6001

• Parker: 929-462, 929-505, 929-505A

• Primatech: PTAC1611, PTAC1611G, PTAC1668

• Road Choice: EV01210

• Truck Air / MEI: 12-3028A, 12-3028G, 12-3040A

• TruckAC+: T3529

• TTA/C: 16-7201

• Volvo: 85100994

• Red Dot Aftermarket: 71R8430

• Red Dot Factory: RD-5-8936-0

Additional Interchange References:
232-8568, 38677, 3949398, 4379-RD589360, 4379-RD589360P, 520-1225, 549708BSM, 579708BSM, 929-513, EA13100, EV01225, FLTEVPM, RDHRD589360P, RDT71R8430, ZGG709020

(Always verify plate-mount configuration, stud size, superheat rating, and pressure limit prior to installation.)