Red Dot 72R7100 Electronic Water Valve | 12/24V 5/8″ Coolant Control

Description

The Red Dot 72R7100 is an electronic water valve built for mobile HVAC and heater units. It works on both 12-volt and 24-volt systems, so it fits a wide range of equipment. The valve uses 5/8″ hose connections, which keeps installation simple and fast.

Because the valve controls coolant flow, it plays a key role in cabin heat performance. When a valve sticks or leaks, heat output drops. Replacing it with the 72R7100 brings the system back to normal. The compact design handles harsh conditions in trucks, buses, and off-highway machines. It also weighs about 1.18 pounds, so it remains easy to mount during service work.

This valve appears under the factory reference RD-5-10258-0P. The shared interchange numbers confirm consistent fitment across several heater and HVAC assemblies. As a result, you can install it with confidence.

Use the 72R7100 when your system shows:

• Weak or inconsistent cabin heat

• Coolant leaks near the water valve

• Sticking or blocked valve movement

• Failed or damaged electrical control

Specifications:
• Part Type: Electronic Water Valve
• Voltage: 12 V or 24 V
• Hose Connection: 5/8″ inlet/outlet
• Weight: Approximately 1.18 lbs
• Factory Reference: RD-5-10258-0P
• Typical Use: Red Dot mobile HVAC and heater systems

Interchange Numbers:
72R7100, RD-5-10258-0P, RD5102580, 4379-RD5102580, 4379-RD5102580P, 300-5515, 20-12580, 1604605