71R8350 Red Dot Bulbless Block Type Expansion Valve – 1½ Ton, 50 PSIG @ 75°F

Description

The Red Dot 71R8350 Bulbless Block Type Expansion Valve is designed for mobile HVAC systems that require a compact, rugged block-style TXV without an external sensing bulb. Bulbless valves regulate refrigerant flow internally, simplifying installation and improving durability in high-vibration environments.

This model is specifically designed for Freightliner C112, C120, and Century Class trucks (1998–2005). With female O-ring connections, a 5°F superheat rating, and a 50 psig pressure limit at 75°F, the 71R8350 delivers consistent refrigerant metering for stable evaporator performance in heavy-duty on-highway applications.

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

• Red Dot Part No.: 71R8350

• Red Dot Factory No.: RD-5-10334-0P

• Rated Capacity: 1½ Ton

• Superheat Rating: 5°F

• Pressure Limit: 50 psig @ 75°F

Connections:

Hose Side

• Inlet: 6 (3/8 in.) Female O-Ring

• Outlet: 10 (5/8 in.) Female O-Ring

Evaporator Side

• Inlet: 8 (1/2 in.) Female O-Ring

• Outlet: 10 (5/8 in.) Female O-Ring

Primary Application:

• Freightliner: C112, C120, Century Class (1998–2005)

---

OEM & Interchange Numbers

OEM Numbers:

• Freightliner: BOA80-321-00-229

• Mack: 4379-RD5103340

• Volvo: RDHRD5103340P

• Ford: D6DZ-19849-A

• Eaton: 329-474

Aftermarket / Interchange:

• Texas Truck AC: 450-6509

• AirSource / MEI: 1613, 1645

• Alliance: ABP N83 309006

• Truck Air / MEI: 12-0411

• Red Dot Aftermarket: 71R8350

Additional Interchange References:
1-3928, 1812003, 207343, 232-8560, 3949881, 4379-RD5103340P, ABP N83 308291, BOA-80-321-00-249, E-805033, EA14400, EV01045, RDHRD5103340P, RDT71R8350, ZGG13928, ZGG709010

(Always verify block configuration, O-ring sizes, superheat rating, and pressure limits prior to installation.)