
Image is for illustration purposes only. Actual part may vary.
RD-5-4408-0P
The Red Dot RD-5-4408-0P is a 12-volt blower relay designed for heavy-duty truck HVAC systems. It is a single-pole, single-throw (SPST) relay with five male blade terminals and tab mounting, rated for 20/30 amps. This relay controls the blower motor, switching it on or off and managing fan speeds. It is commonly replaced when the blower motor fails to run, only works on certain speeds, or operates intermittently.
Verified fitment for Western Star vehicles manufactured between 1988 and 1995. May also fit other heavy-duty applications that use the same OEM relay numbers, but only Western Star is confirmed in the Red Dot catalog.
Part Number: RD-5-4408-0P
RELAY- 12 VOLT (71R1702)
Vendor: JIT Truck Parts, LLC
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting