72R5220 cable-controlled water valve is engineered to deliver smoother coolant control and improved heater system performance. Designed with 5/8″ hose connections, this inline valve includes an integrated flow restricter that limits coolant flow to approximately 5–6 gallons per minute through the heater core.
By reducing excess flow, the valve allows easier modulation, longer water valve life, and more efficient heat transfer, helping prevent heater core erosion and temperature spikes. The push-to-open cable operation provides precise manual control, making this valve ideal for heavy-duty trucks, buses, and off-highway equipment.
Manufactured to OEM-grade standards and widely cross-referenced across the industry, this valve is well suited for both service replacement and retrofit installations where controlled coolant flow is critical.
Product Specifications
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Product Type: Cable-Controlled Water Valve
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Reference Part Number: 72R5220
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Manufacturer Catalog No.: RD-5-7760-1P
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Valve Style: Inline
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Inlet Size: 5/8″ hose
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Outlet Size: 5/8″ hose
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Operation: Push to open
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Flow Restriction: Approx. 5–6 GPM through heater core
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Application: Cab heat and coolant flow control with enhanced modulation
Cross-Reference Numbers
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Texas Truck A/C: 625-4205
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AirSource / MEI: 2280
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Alliance: ABP N83 324003
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CoolStar / MEI: 725-1108
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Primatech: PTAC2280
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Truck Air / MEI: 44860
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TruckAC+: T4063
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TTA/C: 24-5105
Interchange Numbers
10-2626, 2280, 232-8663, 250-6802, 4379-RD577601, 4379-RD577601P, 625-4205, 725-1108, 72R5220, ABP N83 324003, AT309331, HP21108, RDH RD5 7760 1, RDHRD577601P, RDT72R5220
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