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  2. Auto Parts
  3. Belts and Cooling
  4. Thermostat and Housing
  5. Engine Coolant Thermostat
  6. ACDelco 12T3D

ACDelco 12T3D Engine Coolant Thermostat

ACDelco 12T3D Engine Coolant Thermostat

ACDelco
Brand:ACDelco
Part Number: 12T3D
UPC: 00707773060452
Weight: 0.12 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

THERMOSTAE (B)

ACDelco Professional Engine Coolant Thermostats control the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature, and are a high quality replacement for many vehicles on the road today. These engine coolant thermostats are manufactured to meet your expectations for fit, form, and function. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Controls the flow of coolant through the radiator to help your vehicle's engine reach and maintain its optimal operating temperature
  • Manufactured to meet expectations for fit, form, and function
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco

Specifications:

Jiggle Pin Weep Hole:
No
Opening Temperature (Deg. F):
180 Deg. F
Programming Required:
No
Seal Type:
Gasket
Sealing Flange Outside Diameter:
1.889 in.
Sealing Flange Outside Diameter:
48 mm
Start to Open Temperature:
180 Degrees Fahrenheit
Start to Open Temperature:
82 Degrees Celsius, Centigrade

Features and Benefits:

  • – Have cooling system inspected immediately if instrument panel-mounted temperature gauge indicates engine overheating

Specifications:

Country of Origin:
IL

Select a vehicle to narrow ACDelco 12T3D Engine Coolant Thermostat fitment info!

Last Updated: 05/20/2023

Years Vehicle Per Vehicle Fit NotesFitment Notes

1987

 

1987

 
Buick Skyhawk

2.0L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: K
 

Buick Skyhawk



2.0L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: K

1 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
Buick Skyhawk

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Buick Skyhawk



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1982

 

1982

 
Buick Skyhawk

1.8L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: G
 

Buick Skyhawk



1.8L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: G

1 Per Vehicle

1985

 

1985

 
Buick Skylark

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W
 

Buick Skylark



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W

1 Per Vehicle

1986

 

1985

 

1986

 

1985

 
Cadillac Cimarron

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Cadillac Cimarron



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
Cadillac Cimarron

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Cadillac Cimarron



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1982

 

1982

 
Cadillac Cimarron

1.8L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Cadillac Cimarron



1.8L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 
Chevrolet Camaro

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chevrolet Camaro



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1985

 

1986

 

1985

 
Chevrolet Cavalier

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chevrolet Cavalier



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
Chevrolet Cavalier

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chevrolet Cavalier



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1982

 

1982

 
Chevrolet Cavalier

1.8L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chevrolet Cavalier



1.8L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1986

 
Chevrolet Celebrity

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W
 

Chevrolet Celebrity



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W

1 Per Vehicle

1981

 

1981

 
Chevrolet Chevette

1.6L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chevrolet Chevette



1.6L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1985

 

1985

 
Chevrolet Citation II

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W
 

Chevrolet Citation II



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W

1 Per Vehicle

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 
Chevrolet S10

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chevrolet S10



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1984

 

1983

 

1984

 

1983

 
Chevrolet S10

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chevrolet S10



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 
Chevrolet S10 Blazer

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chevrolet S10 Blazer



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1984

 

1983

 

1984

 

1983

 
Chevrolet S10 Blazer

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chevrolet S10 Blazer



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1990

 

1989

 

1990

 

1989

 
Chrysler TC Maserati

2.2L L4 Gas DOHC Turbo
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chrysler TC Maserati



2.2L L4 Gas DOHC Turbo Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1989

 

1989

 
Chrysler TC Maserati

2.2L L4 Gas SOHC Turbo
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Chrysler TC Maserati



2.2L L4 Gas SOHC Turbo Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1982

 

1981

 

1982

 

1981

 
Ford Courier

2.3L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Ford Courier



2.3L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1980

 

1980

 
Ford Courier

2.3L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: B
 

Ford Courier



2.3L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: B

1 Per Vehicle

1979

 

1978

 

1977

 

1979

 

1978

 

1977

 
Ford Courier

2.3L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Ford Courier



2.3L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1978

 

1978

 
Ford Fairmont

2.3L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Ford Fairmont



2.3L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1978

 

1977

 

1976

 

1975

 

1974

 

1978

 

1977

 

1976

 

1975

 

1974

 
Ford Mustang II

2.3L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Ford Mustang II



2.3L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1974

 

1974

 
Ford Mustang II

2.3L L4 Gas
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Ford Mustang II



2.3L L4 Gas Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1978

 

1977

 

1976

 

1975

 

1974

 

1978

 

1977

 

1976

 

1975

 

1974

 
Ford Pinto

2.3L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Ford Pinto



2.3L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1974

 

1974

 
Ford Pinto

2.3L L4 Gas
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Ford Pinto



2.3L L4 Gas Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1974

 

1973

 

1972

 

1971

 
Ford Pinto

2.0L L4 Gas,
2.0L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Ford Pinto



2.0L L4 Gas,
2.0L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1989

 

1989

 
GMC S15

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

GMC S15



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 
GMC S15

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

GMC S15



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1984

 

1983

 

1984

 

1983

 
GMC S15

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

GMC S15



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 
GMC S15 Jimmy

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

GMC S15 Jimmy



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1983

 

1983

 
GMC S15 Jimmy

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

GMC S15 Jimmy



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1989

 

1989

 
Isuzu Trooper

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Isuzu Trooper



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1985

 

1984

 

1986

 

1985

 

1984

 
Jeep Cherokee

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Jeep Cherokee



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1986

 
Jeep Comanche

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Jeep Comanche



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1985

 

1984

 

1986

 

1985

 

1984

 
Jeep Wagoneer

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Jeep Wagoneer



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1978

 

1977

 

1976

 

1975

 

1978

 

1977

 

1976

 

1975

 
Mercury Bobcat

2.3L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Mercury Bobcat



2.3L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1977

 

1976

 

1977

 

1976

 
Mercury Capri

2.3L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Mercury Capri



2.3L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1974

 

1973

 

1972

 

1971

 
Mercury Capri

2.0L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Mercury Capri



2.0L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1986

 
Oldsmobile Cutlass Ciera

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W
 

Oldsmobile Cutlass Ciera



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W

1 Per Vehicle

1986

 

1985

 

1986

 

1985

 
Oldsmobile Firenza

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Oldsmobile Firenza



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
Oldsmobile Firenza

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Oldsmobile Firenza



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1982

 

1982

 
Oldsmobile Firenza

1.8L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: G
 

Oldsmobile Firenza



1.8L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: G

1 Per Vehicle

1971

 

1971

 
Opel Deluxe

1.1L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Opel Deluxe



1.1L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1972

 

1971

 

1970

 

1969

 

1968

 

1967

 

1966

 

1972

 

1971

 

1970

 

1969

 

1968

 

1967

 

1966

 
Opel Kadett

1.1L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Opel Kadett



1.1L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1969

 

1969

 
Opel Opel

1.1L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Opel Opel



1.1L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1970

 

1969

 

1968

 

1970

 

1969

 

1968

 
Opel Rallye

1.1L L4 Gas
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Opel Rallye



1.1L L4 Gas Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1985

 

1986

 

1985

 
Pontiac 6000

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W
 

Pontiac 6000



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: W

1 Per Vehicle

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 
Pontiac Firebird

2.8L V6 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Pontiac Firebird



2.8L V6 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1983

 

1983

 
Pontiac J2000

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Pontiac J2000



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1982

 

1982

 
Pontiac J2000

1.8L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: G
 

Pontiac J2000



1.8L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp
8th VIN Digit: G

1 Per Vehicle

1985

 

1984

 

1985

 

1984

 
Pontiac J2000 Sunbird

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Pontiac J2000 Sunbird



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Pontiac LeMans

1.6L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Pontiac LeMans



1.6L L4 Gas SOHC Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1986

 

1986

 
Pontiac Sunbird

2.0L L4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Pontiac Sunbird



2.0L L4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1973

 

1972

 

1971

 

1973

 

1972

 

1971

 
Saab 95

1.7L V4 Gas,
1.7L V4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Saab 95



1.7L V4 Gas,
1.7L V4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1968

 

1967

 

1968

 

1967

 
Saab 95

1.5L V4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Saab 95



1.5L V4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1973

 

1972

 

1971

 

1973

 

1972

 

1971

 
Saab 96

1.7L V4 Gas,
1.7L V4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Saab 96



1.7L V4 Gas,
1.7L V4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1968

 

1968

 
Saab 96

1.5L V4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Saab 96



1.5L V4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1973

 

1973

 
Saab 99

2.0L L4 Gas SOHC
1
 
Gold
Temperature 180F
Standard
OEM Recommended Temp
 

Saab 99



2.0L L4 Gas SOHC Gold
Temperature 180F
Standard
OEM Recommended Temp

1 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1974

 

1973

 

1972

 

1971

 

1970

 
Saab Sonett

1.7L V4 Gas,
1.7L V4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Saab Sonett



1.7L V4 Gas,
1.7L V4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle

1969

 

1968

 

1969

 

1968

 
Saab Sonett

1.5L V4 Gas OHV
1
 
Gold
Temperature 180F
Standard
Alternate Temp
 

Saab Sonett



1.5L V4 Gas OHV Gold
Temperature 180F
Standard
Alternate Temp

1 Per Vehicle