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ACDelco 12574478 Engine Coolant Thermostat Seal


Brand:	ACDelco
Part Number:	12574478
UPC:	00021625556253
Weight:	0.1 lbs
Condition:	New

On Sale:

$72.97

Availability:

5 in Stock

Warehouse:

US-12

Quantity:

Product Information

Description:

Get the ACDelco 12574478 Engine Coolant Thermostat Seal for your vehicle. Buy now and secure your purchase online!

GM Genuine Parts Engine Coolant Thermostat Seals are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These seals help prevent coolant leaks from your vehicle's engine. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM regularly updates production and service part designs to integrate new materials and technologies
Helps prevent coolant from leaking from the engine
Seals your vehicle's thermostat housing
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Specifications:

Height:

1.65 in.

Inside Diameter:

2.003 in.

Inside Diameter:

50.88 mm

Length (in):

2.9 in

Material:

Rubber

Outside Diameter:

2.387 in.

Outside Diameter:

60.62 mm

Programming Required:

Seal Type:

Gasket O Ring

Thickness:

0.165 in.

Thickness:

4.2 mm

Weight (lb):

0.1 lb

Width (in):

2.05 in

Features and Benefits:

– Change coolant at required intervals
– Have cooling system inspected immediately if instrument panel-mounted temperature gauge indicates engine overheating

Specifications:

Country of Origin:

Select a vehicle to narrow ACDelco 12574478 Engine Coolant Thermostat Seal fitment info!

Last Updated: 12/20/2023

Years

Vehicle

Per Vehicle

Fit Notes

Fitment Notes

2011

Buick Lucerne

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: L37
8th VIN Digit: S

Buick Lucerne

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: S

1 Per Vehicle

Buick Lucerne

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: L37
8th VIN Digit: 9

Buick Lucerne

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Buick Lucerne

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

Buick Lucerne

4.6L V8 Gas DOHC V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

1 Per Vehicle

1993

Cadillac 60 Special

4.9L V8 Gas OHV

1 V-SHAPED RING
UPR
8th VIN Digit: B

Cadillac 60 Special

4.9L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: B

1 Per Vehicle

1993

Cadillac Allante

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: L37
8th VIN Digit: 9

Cadillac Allante

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Cadillac Allante

4.5L V8 Gas OHV

1 V-SHAPED RING
UPR
8th VIN Digit: 8

Cadillac Allante

4.5L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: 8

1 Per Vehicle

Cadillac Allante

4.1L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 7

Cadillac Allante

4.1L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 7

1 Per Vehicle

Cadillac Commercial Chassis

4.9L V8 Gas OHV

1 V-SHAPED RING
UPR
8th VIN Digit: B

Cadillac Commercial Chassis

4.9L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: B

1 Per Vehicle

1990

Cadillac Commercial Chassis

4.5L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 3

Cadillac Commercial Chassis

4.5L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 3

1 Per Vehicle

1987

Cadillac Commercial Chassis

4.1L V8 Gas OHV

1 W/SEAL
V-SHAPED RING
8th VIN Digit: 8

Cadillac Commercial Chassis

4.1L V8 Gas OHV W/SEAL
V-SHAPED RING
8th VIN Digit: 8

1 Per Vehicle

Cadillac DeVille

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: L37
8th VIN Digit: 9

Cadillac DeVille

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Cadillac DeVille

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

Cadillac DeVille

4.6L V8 Gas DOHC V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

1 Per Vehicle

Cadillac DeVille

4.9L V8 Gas OHV

1 V-SHAPED RING
O-RING, UPR
8th VIN Digit: B

Cadillac DeVille

4.9L V8 Gas OHV V-SHAPED RING
O-RING, UPR
8th VIN Digit: B

1 Per Vehicle

Cadillac DeVille

4.9L V8 Gas OHV

1 V-SHAPED RING
UPR
8th VIN Digit: B

Cadillac DeVille

4.9L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: B

1 Per Vehicle

1990

Cadillac DeVille

4.5L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 3

Cadillac DeVille

4.5L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 3

1 Per Vehicle

Cadillac DeVille

4.5L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 5

Cadillac DeVille

4.5L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 5

1 Per Vehicle

1987

Cadillac DeVille

4.1L V8 Gas OHV

1 W/SEAL
V-SHAPED RING
8th VIN Digit: 8

Cadillac DeVille

4.1L V8 Gas OHV W/SEAL
V-SHAPED RING
8th VIN Digit: 8

1 Per Vehicle

1985

Cadillac DeVille

4.1L V8 Gas OHV

1 W/SEAL
V-SHAPED RING
8th VIN Digit: 8

Cadillac DeVille

4.1L V8 Gas OHV W/SEAL
V-SHAPED RING
8th VIN Digit: 8

1 Per Vehicle

2011

Cadillac DTS

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: L37
8th VIN Digit: S

Cadillac DTS

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: S

1 Per Vehicle

2011

Cadillac DTS

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: LD8
8th VIN Digit: 6

Cadillac DTS

4.6L V8 Gas DOHC V-SHAPED RING
Eng: LD8
8th VIN Digit: 6

1 Per Vehicle

Cadillac DTS

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: L37
8th VIN Digit: 9

Cadillac DTS

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Cadillac DTS

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

Cadillac DTS

4.6L V8 Gas DOHC V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

1 Per Vehicle

Cadillac Eldorado

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: L37
8th VIN Digit: 9

Cadillac Eldorado

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Cadillac Eldorado

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

Cadillac Eldorado

4.6L V8 Gas DOHC V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

1 Per Vehicle

1993

Cadillac Eldorado

4.6L V8 Gas DOHC

1 V-SHAPED RING
UPR
Eng: L37
8th VIN Digit: 9

Cadillac Eldorado

4.6L V8 Gas DOHC V-SHAPED RING
UPR
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

1993

Cadillac Eldorado

4.6L V8 Gas DOHC

1 V-SHAPED RING
UPR
Eng: LD8
8th VIN Digit: Y

Cadillac Eldorado

4.6L V8 Gas DOHC V-SHAPED RING
UPR
Eng: LD8
8th VIN Digit: Y

1 Per Vehicle

Cadillac Eldorado

4.9L V8 Gas OHV

1 V-SHAPED RING
UPR
8th VIN Digit: B

Cadillac Eldorado

4.9L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: B

1 Per Vehicle

1990

Cadillac Eldorado

4.5L V8 Gas OHV

1 V-SHAPED RING

Cadillac Eldorado

Cadillac Eldorado

4.5L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 5

Cadillac Eldorado

4.5L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 5

1 Per Vehicle

Cadillac Eldorado

4.1L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 8

Cadillac Eldorado

4.1L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 8

1 Per Vehicle

Cadillac Fleetwood

4.9L V8 Gas OHV

1 V-SHAPED RING
UPR
8th VIN Digit: B

Cadillac Fleetwood

4.9L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: B

1 Per Vehicle

1990

Cadillac Fleetwood

4.5L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 3

Cadillac Fleetwood

4.5L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 3

1 Per Vehicle

Cadillac Fleetwood

4.5L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 5

Cadillac Fleetwood

4.5L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 5

1 Per Vehicle

Cadillac Fleetwood

4.1L V8 Gas OHV

1 W/SEAL
V-SHAPED RING
8th VIN Digit: 8

Cadillac Fleetwood

4.1L V8 Gas OHV W/SEAL
V-SHAPED RING
8th VIN Digit: 8

1 Per Vehicle

Cadillac Seville

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: L37
8th VIN Digit: 9

Cadillac Seville

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Cadillac Seville

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

Cadillac Seville

4.6L V8 Gas DOHC V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

1 Per Vehicle

1993

Cadillac Seville

4.6L V8 Gas DOHC

1 V-SHAPED RING
UPR
Eng: L37
8th VIN Digit: 9

Cadillac Seville

4.6L V8 Gas DOHC V-SHAPED RING
UPR
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Cadillac Seville

4.9L V8 Gas OHV

1 V-SHAPED RING
UPR
8th VIN Digit: B

Cadillac Seville

4.9L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: B

1 Per Vehicle

1990

Cadillac Seville

4.5L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 3

Cadillac Seville

4.5L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 3

1 Per Vehicle

Cadillac Seville

4.5L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 5

Cadillac Seville

4.5L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 5

1 Per Vehicle

Cadillac Seville

4.1L V8 Gas OHV

1 V-SHAPED RING
8th VIN Digit: 8

Cadillac Seville

4.1L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 8

1 Per Vehicle

2003

Chevrolet Cavalier

2.2L L4 Bi-Fuel DOHC

1 V-SHAPED RING
8th VIN Digit: 6

Chevrolet Cavalier

2.2L L4 Bi-Fuel DOHC V-SHAPED RING
8th VIN Digit: 6

1 Per Vehicle

Oldsmobile Alero

2.2L L4 Gas DOHC

1 V-SHAPED RING
Eng: L61
8th VIN Digit: F

Oldsmobile Alero

2.2L L4 Gas DOHC V-SHAPED RING
Eng: L61
8th VIN Digit: F

1 Per Vehicle

Oldsmobile Aurora

4.0L V8 Gas DOHC

1 W/SEAL
V-SHAPED RING
8th VIN Digit: C

Oldsmobile Aurora

4.0L V8 Gas DOHC W/SEAL
V-SHAPED RING
8th VIN Digit: C

1 Per Vehicle

Pontiac Bonneville

4.6L V8 Gas DOHC

1 V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

Pontiac Bonneville

4.6L V8 Gas DOHC V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

1 Per Vehicle

Pontiac Grand Am

2.2L L4 Gas DOHC

1 V-SHAPED RING
Eng: L61
8th VIN Digit: F

Pontiac Grand Am

2.2L L4 Gas DOHC V-SHAPED RING
Eng: L61
8th VIN Digit: F

1 Per Vehicle

ACDelco 12574478 Engine Coolant Thermostat Seal

$72.97

Product Information

Description:

Features and Benefits:

Specifications:

Features and Benefits:

Specifications:

Select a vehicle to narrow ACDelco 12574478 Engine Coolant Thermostat Seal fitment info!

Buick Lucerne 4.6L V8 Gas DOHC

1

V-SHAPED RINGEng: L378th VIN Digit: S

Buick Lucerne

4.6L V8 Gas DOHC V-SHAPED RINGEng: L378th VIN Digit: S 1 Per Vehicle

Buick Lucerne 4.6L V8 Gas DOHC

1

V-SHAPED RINGEng: L378th VIN Digit: 9

Buick Lucerne

4.6L V8 Gas DOHC V-SHAPED RINGEng: L378th VIN Digit: 9 1 Per Vehicle

Buick Lucerne 4.6L V8 Gas DOHC

1

V-SHAPED RINGEng: LD88th VIN Digit: Y

Buick Lucerne

4.6L V8 Gas DOHC V-SHAPED RINGEng: LD88th VIN Digit: Y 1 Per Vehicle

Cadillac 60 Special 4.9L V8 Gas OHV

1

V-SHAPED RING UPR8th VIN Digit: B

Cadillac 60 Special

4.9L V8 Gas OHV V-SHAPED RING UPR8th VIN Digit: B 1 Per Vehicle

Cadillac Allante 4.6L V8 Gas DOHC

1

V-SHAPED RINGEng: L378th VIN Digit: 9

Cadillac Allante

4.6L V8 Gas DOHC V-SHAPED RINGEng: L378th VIN Digit: 9 1 Per Vehicle

Cadillac Allante 4.5L V8 Gas OHV

1

V-SHAPED RING UPR8th VIN Digit: 8

Cadillac Allante

4.5L V8 Gas OHV V-SHAPED RING UPR8th VIN Digit: 8 1 Per Vehicle

Cadillac Allante 4.1L V8 Gas OHV

1

V-SHAPED RING8th VIN Digit: 7

Cadillac Allante

4.1L V8 Gas OHV V-SHAPED RING8th VIN Digit: 7 1 Per Vehicle

Cadillac Commercial Chassis 4.9L V8 Gas OHV

1

V-SHAPED RING UPR8th VIN Digit: B

Cadillac Commercial Chassis

4.9L V8 Gas OHV V-SHAPED RING UPR8th VIN Digit: B 1 Per Vehicle

Cadillac Commercial Chassis 4.5L V8 Gas OHV

1

V-SHAPED RING8th VIN Digit: 3

Cadillac Commercial Chassis

4.5L V8 Gas OHV V-SHAPED RING8th VIN Digit: 3 1 Per Vehicle

Cadillac Commercial Chassis 4.1L V8 Gas OHV

1

W/SEAL V-SHAPED RING8th VIN Digit: 8

Cadillac Commercial Chassis

4.1L V8 Gas OHV W/SEAL V-SHAPED RING8th VIN Digit: 8 1 Per Vehicle

Cadillac DeVille 4.6L V8 Gas DOHC

1

V-SHAPED RINGEng: L378th VIN Digit: 9

Cadillac DeVille

4.6L V8 Gas DOHC V-SHAPED RINGEng: L378th VIN Digit: 9 1 Per Vehicle

Cadillac DeVille 4.6L V8 Gas DOHC

1

V-SHAPED RINGEng: LD88th VIN Digit: Y

Cadillac DeVille

4.6L V8 Gas DOHC V-SHAPED RINGEng: LD88th VIN Digit: Y 1 Per Vehicle

Cadillac DeVille 4.9L V8 Gas OHV

1

V-SHAPED RING O-RING, UPR8th VIN Digit: B

Cadillac DeVille

4.9L V8 Gas OHV V-SHAPED RING O-RING, UPR8th VIN Digit: B 1 Per Vehicle

Cadillac DeVille 4.9L V8 Gas OHV

Buick Lucerne

4.6L V8 Gas DOHC

V-SHAPED RING
Eng: L37
8th VIN Digit: S

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: S

1 Per Vehicle

Buick Lucerne

4.6L V8 Gas DOHC

V-SHAPED RING
Eng: L37
8th VIN Digit: 9

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Buick Lucerne

4.6L V8 Gas DOHC

V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

4.6L V8 Gas DOHC V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

1 Per Vehicle

Cadillac 60 Special

4.9L V8 Gas OHV

V-SHAPED RING
UPR
8th VIN Digit: B

4.9L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: B

1 Per Vehicle

Cadillac Allante

4.6L V8 Gas DOHC

V-SHAPED RING
Eng: L37
8th VIN Digit: 9

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Cadillac Allante

4.5L V8 Gas OHV

V-SHAPED RING
UPR
8th VIN Digit: 8

4.5L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: 8

1 Per Vehicle

Cadillac Allante

4.1L V8 Gas OHV

V-SHAPED RING
8th VIN Digit: 7

4.1L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 7

1 Per Vehicle

Cadillac Commercial Chassis

4.9L V8 Gas OHV

V-SHAPED RING
UPR
8th VIN Digit: B

4.9L V8 Gas OHV V-SHAPED RING
UPR
8th VIN Digit: B

1 Per Vehicle

Cadillac Commercial Chassis

4.5L V8 Gas OHV

V-SHAPED RING
8th VIN Digit: 3

4.5L V8 Gas OHV V-SHAPED RING
8th VIN Digit: 3

1 Per Vehicle

Cadillac Commercial Chassis

4.1L V8 Gas OHV

W/SEAL
V-SHAPED RING
8th VIN Digit: 8

4.1L V8 Gas OHV W/SEAL
V-SHAPED RING
8th VIN Digit: 8

1 Per Vehicle

Cadillac DeVille

4.6L V8 Gas DOHC

V-SHAPED RING
Eng: L37
8th VIN Digit: 9

4.6L V8 Gas DOHC V-SHAPED RING
Eng: L37
8th VIN Digit: 9

1 Per Vehicle

Cadillac DeVille

4.6L V8 Gas DOHC

V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

4.6L V8 Gas DOHC V-SHAPED RING
Eng: LD8
8th VIN Digit: Y

1 Per Vehicle

Cadillac DeVille

4.9L V8 Gas OHV

V-SHAPED RING
O-RING, UPR
8th VIN Digit: B

4.9L V8 Gas OHV V-SHAPED RING
O-RING, UPR
8th VIN Digit: B

1 Per Vehicle

Cadillac DeVille

4.9L V8 Gas OHV