The Standard Ignition HVAC Blower Motor Resistor RU-54 (also written RU54) drops in as a direct-fit replacement for the listed GM applications. It fits many vehicles, among them the 1994-1996 Chevrolet Impala, 1991-1996 Chevrolet Caprice and 1991-1994 Chevrolet Commercial Chassis; see the Buyer's Guide tab for the full list. This resistor provides the stepped resistance that sets your lower and intermediate blower fan speeds; when it fails, you often lose those speeds and the blower may only run on high.
For engine-level details on your specific vehicle, see the Buyer's Guide tab.
Interchange: RU868 · JA1614 · BR78 · 52455732
This part cross-references / interchanges with the following part numbers:
What does this blower motor resistor do?
It supplies stepped resistance to set the lower and intermediate blower fan speeds. The blower motor draws through it, so its resistance values determine how fast the fan turns on each setting.
Is the RU-54 the right Chevy Impala blower motor resistor for a 1994-1996 model?
Yes, it is listed as a direct-fit replacement for the 1994-1996 Chevrolet Impala, as well as the 1991-1996 Chevrolet Caprice and 1991-1994 Chevrolet Commercial Chassis. See the Buyer's Guide tab for every listed vehicle.
My blower only works on high speed — is this the part?
A failed resistor often causes a loss of the lower fan speeds while high still works. If a faulty resistor is the cause, this replaces it; diagnose the circuit first, as other components can produce similar signs.
What numbers does the RU-54 replace?
It interchanges with RU868, JA1614, BR78 and 52455732.
What is it made with?
It uses premium copper electrical connectors, which help deliver more precise resistance values for improved performance and longer part life.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
