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ACDelco U978 Emergency Vehicle Lamp Relay
for 1992 (please select make/model)

ACDelco U978 Emergency Vehicle Lamp Relay - 1992 Image 1
ACDelco U978 Emergency Vehicle Lamp Relay - 1992 Image 2
ACDelco U978 Emergency Vehicle Lamp Relay - 1992 Image 3
ACDelco U978 Emergency Vehicle Lamp Relay - 1992

ACDelco
Brand:ACDelco
Part Number: U978
UPC: 00707773134870
Weight: 0.81 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

SWITCH S (B)

ACDelco Professional Emergency Vehicle Light Relay is a high quality aftermarket replacement component for one or more of the following vehicle systems: starting and charging. This premium aftermarket motor is manufactured to meet or exceed your expectations for fit, form, and function. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Manufactured to meet expectations for fit, form, and function
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco

Specifications:

Connector Gender:
Female
Connector Quantity:
4
Cover Material:
Metal
Mounting Bracket Included:
Yes
Mounting Hardware Included:
No
Mounting Type:
Bracket
Programming Required:
No
Terminal Gender:
Male
Terminal Quantity:
4
Terminal Type:
Ring
Voltage:
12 VDC
Wire Quantity:
0
Country of Origin:
US

Select a vehicle to narrow ACDelco U978 Emergency Vehicle Lamp Relay fitment info!

Last Updated: 03/13/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes
Chevrolet Astro

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet Astro



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1987

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1987

 
Chevrolet Blazer

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet Blazer



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
Chevrolet C1500 Suburban

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet C1500 Suburban



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
Chevrolet C2500 Suburban

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet C2500 Suburban



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G10

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet G10



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G10

5.0L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet G10



5.0L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G10

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet G10



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G20

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet G20



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G20

5.0L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet G20



5.0L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G20

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet G20



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G20

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

Chevrolet G20



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Chevrolet G30

7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet G30



7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G30

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet G30



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G30

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet G30



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet G30

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

Chevrolet G30



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
Chevrolet K1500 Suburban

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet K1500 Suburban



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
Chevrolet K2500 Suburban

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet K2500 Suburban



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 
Chevrolet P30

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet P30



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet P30

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet P30



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet P30

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

Chevrolet P30



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle
Chevrolet S10

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet S10



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1987

 

1986

 

1985

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1987

 

1986

 

1985

 
Chevrolet S10

2.5L L4 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet S10



2.5L L4 Gas OHV Professional
200 Amp

1 Per Vehicle
Chevrolet S10

2.8L V6 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet S10



2.8L V6 Gas OHV Professional
200 Amp

1 Per Vehicle

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Chevrolet S10 Blazer

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

Chevrolet S10 Blazer



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 
Ford Aerostar

4.0L V6 Gas OHV
1
 
Professional
200 Amp
 

Ford Aerostar



4.0L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
Ford Aerostar

3.0L V6 Gas OHV
1
 
Professional
200 Amp
 

Ford Aerostar



3.0L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC C1500

5.0L V8 Gas OHV,
5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC C1500



5.0L V8 Gas OHV,
5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC C1500

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC C1500



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC C1500

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

GMC C1500



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC C1500 Suburban

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC C1500 Suburban



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC C2500

6.5L V8 Diesel OHV Turbo
1
 
Professional
200 Amp
 

GMC C2500



6.5L V8 Diesel OHV Turbo Professional
200 Amp

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 
GMC C2500

7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC C2500



7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC C2500

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC C2500



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC C2500

5.0L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC C2500



5.0L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC C2500

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC C2500



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC C2500

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

GMC C2500



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC C2500 Suburban

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC C2500 Suburban



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC C3500

6.5L V8 Diesel OHV Turbo
1
 
Professional
200 Amp
 

GMC C3500



6.5L V8 Diesel OHV Turbo Professional
200 Amp

1 Per Vehicle
GMC C3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC C3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC C3500

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

GMC C3500



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle
GMC C3500HD

6.5L V8 Diesel OHV Turbo
1
 
Professional
200 Amp
 

GMC C3500HD



6.5L V8 Diesel OHV Turbo Professional
200 Amp

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 
GMC C3500HD

7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC C3500HD



7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1995

 

1994

 

1993

 

1992

 

1991

 
GMC C3500HD

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC C3500HD



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G1500

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC G1500



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G1500

5.0L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC G1500



5.0L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G1500

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC G1500



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G2500

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC G2500



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G2500

5.0L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC G2500



5.0L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G2500

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC G2500



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G2500

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

GMC G2500



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC G3500

7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC G3500



7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G3500

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC G3500



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G3500

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC G3500



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC G3500

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

GMC G3500



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC Jimmy

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC Jimmy



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC K1500

5.0L V8 Gas OHV,
5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC K1500



5.0L V8 Gas OHV,
5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC K1500

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC K1500



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K1500

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

GMC K1500



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC K1500 Suburban

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC K1500 Suburban



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC K2500

6.5L V8 Diesel OHV Turbo
1
 
Professional
200 Amp
 

GMC K2500



6.5L V8 Diesel OHV Turbo Professional
200 Amp

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 
GMC K2500

7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC K2500



7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC K2500

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC K2500



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC K2500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K2500

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

GMC K2500



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC K2500 Suburban

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC K2500 Suburban



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC K3500

6.5L V8 Diesel OHV Turbo
1
 
Professional
200 Amp
 

GMC K3500



6.5L V8 Diesel OHV Turbo Professional
200 Amp

1 Per Vehicle
GMC K3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC K3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
GMC K3500

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

GMC K3500



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 
GMC P3500

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC P3500



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC P3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC P3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC P3500

6.2L V8 Diesel OHV
1
 
Professional
200 Amp
 

GMC P3500



6.2L V8 Diesel OHV Professional
200 Amp

1 Per Vehicle
GMC Safari

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC Safari



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle
GMC Sonoma

4.3L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC Sonoma



4.3L V6 Gas OHV Professional
200 Amp

1 Per Vehicle

1993

 

1992

 

1991

 

1993

 

1992

 

1991

 
GMC Sonoma

2.5L L4 Gas OHV,
2.8L V6 Gas OHV
1
 
Professional
200 Amp
 

GMC Sonoma



2.5L L4 Gas OHV,
2.8L V6 Gas OHV Professional
200 Amp

1 Per Vehicle

1993

 

1992

 

1993

 

1992

 
GMC Typhoon

4.3L V6 Gas OHV Turbo
1
 
Professional
200 Amp
 

GMC Typhoon



4.3L V6 Gas OHV Turbo Professional
200 Amp

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 
GMC Yukon

5.7L V8 Gas OHV
1
 
Professional
200 Amp
 

GMC Yukon



5.7L V8 Gas OHV Professional
200 Amp

1 Per Vehicle

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