800.345.4545
Unrivaled Customer Service
And Expert Tech Advice!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
0
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

ACDelco 12S3

Thermostat Seal

ACDelco 12S3

065-12S3

jegs shipping
Estimated ship date 02/26/18 if Ordered Today
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
ACDelco 12S3 Thermostat Seal $1.99
Thermostat Seal

Specifications:

Material
Rubber
Thickness
0.242
Seal Type
Gasket O Ring
Inside Diameter
1.567
Inside Diameter (mm)
39.80
Thickness (mm)
6.140
Outside Diameter
1.803
Outside Diameter (mm)
45.80
Manufacturer's Part Number:
12S3

ACDelco Engine Gaskets and O-Rings are made of high-quality materials with precision and key design features that meet OE specifications.

Does ACDelco 12S3 fit your vehicle?

Narrow Results

1999-2003 PONTIAC BONNEVILLE

  • CC: 3800
  • Liter: 3.8
  • Aspiration: S
  • SubModel: SSEI
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1986 BUICK REGAL

  • EngineType: ALL
  • SubModel: T-TYPE

1996-1999 OLDSMOBILE LSS

  • EngineType: ALL
  • SubModel: ALL

1994-1995 CHEVROLET S10 PICKUP

  • Liter: 4.3
  • SubModel: SS
  • CUI: 262
  • EngineType: V6 ( 4.3 L / 262 )

1995-1999 BUICK RIVIERA

  • EngineType: ALL
  • SubModel: ALL

1999 CHEVROLET MONTE CARLO

  • CC: 3800
  • Liter: 3.8
  • SubModel: LS
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1992 CHEVROLET LUMINA APV

  • CC: 3800
  • Liter: 3.8
  • SubModel: CL
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

2003 CHEVROLET IMPALA

  • CC: 3800
  • Liter: 3.8
  • SubModel: LS SPORT
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1987-1990 BUICK LESABRE

  • EngineType: ALL
  • SubModel: BASE

1986-1987 BUICK REGAL

  • CC: 3800
  • Liter: 3.8
  • SubModel: BASE
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1993-1994 GMC SONOMA

  • Liter: 4.3
  • SubModel: SLS
  • CUI: 262
  • EngineType: V6 ( 4.3 L / 262 )

1986-1988 BUICK CENTURY

  • CC: 3800
  • Liter: 3.8
  • SubModel: ESTATE WAGON
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1991-1998 BUICK LESABRE

  • EngineType: ALL
  • SubModel: ALL

1999-2003 PONTIAC BONNEVILLE

  • CC: 3800
  • Liter: 3.8
  • Aspiration: N
  • SubModel: SE
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

2002 CHEVROLET MONTE CARLO

  • EngineType: ALL
  • SubModel: SS 35TH ANNIVERSARY EDITION

1992-1995 CHEVROLET LUMINA APV

  • CC: 3800
  • Liter: 3.8
  • SubModel: BASE
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1994-1996 OLDSMOBILE 98

  • EngineType: ALL
  • SubModel: ALL

1990-1993 BUICK SKYLARK

  • Liter: 3.3
  • SubModel: GRAN SPORT
  • CUI: 204
  • EngineType: V6 ( 3.3 L / 204 )

1994-1995 CHEVROLET S10 PICKUP

  • Liter: 4.3
  • SubModel: LS
  • CUI: 262
  • EngineType: V6 ( 4.3 L / 262 )

2000 BUICK PARK AVENUE

  • CC: 3800
  • Liter: 3.8
  • Aspiration: S
  • SubModel: ULTRA
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1990-1993 BUICK REGAL

  • CC: 3800
  • Liter: 3.8
  • SubModel: LIMITED
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1996-1998 CHEVROLET CAMARO

  • EngineType: ALL
  • SubModel: LUJO

1992-1994 OLDSMOBILE BRAVADA

  • EngineType: ALL
  • SubModel: ALL

1999 BUICK LESABRE

  • EngineType: ALL
  • SubModel: CUSTOM

2004 PONTIAC GRAND PRIX

  • EngineType: ALL
  • SubModel: GT2

2006-2008 BUICK LUCERNE

  • EngineType: ALL
  • SubModel: CX

1986-1987 BUICK ELECTRA

  • EngineType: ALL
  • SubModel: LIMITED

1992-1995 GMC SAFARI

  • EngineType: ALL
  • SubModel: BASE

2004 PONTIAC GRAND PRIX

  • EngineType: ALL
  • SubModel: GT1

1994-1995 GMC SAFARI

  • EngineType: ALL
  • SubModel: SLX

1992-1993 OLDSMOBILE 98

  • EngineType: ALL
  • SubModel: TOURING

1992-1995 CHEVROLET ASTRO

  • EngineType: ALL
  • SubModel: ALL

1987-1988 PONTIAC BONNEVILLE

  • EngineType: ALL
  • SubModel: ALL

1994-1995 CHEVROLET S10 PICKUP

  • EngineType: ALL
  • SubModel: ZR2

1992-1995 PONTIAC TRANS SPORT

  • CC: 3800
  • Liter: 3.8
  • SubModel: BASE
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

2001-2005 BUICK PARK AVENUE

  • EngineType: ALL
  • SubModel: ALL

1986 BUICK LESABRE

  • CC: 3800
  • Liter: 3.8
  • SubModel: CUSTOM
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1986-1987 BUICK RIVIERA

  • EngineType: ALL
  • SubModel: LUXURY

1992 GMC SONOMA

  • Liter: 4.3
  • SubModel: GT
  • CUI: 262
  • EngineType: V6 ( 4.3 L / 262 )

1986-1987 BUICK ELECTRA

  • EngineType: ALL
  • SubModel: PARK AVENUE

1993 PONTIAC BONNEVILLE

  • EngineType: ALL
  • SubModel: SE

1991-1999 BUICK PARK AVENUE

  • EngineType: ALL
  • SubModel: ALL

1989 BUICK CENTURY

  • Liter: 3.3
  • SubModel: ESTATE WAGON
  • CUI: 204
  • EngineType: V6 ( 3.3 L / 204 )

1995-1998 OLDSMOBILE 88

  • EngineType: ALL
  • SubModel: ALL

2000 BUICK PARK AVENUE

  • CC: 3800
  • Liter: 3.8
  • Aspiration: N
  • SubModel: BASE
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1991 OLDSMOBILE DELTA 88

  • EngineType: ALL
  • SubModel: ALL

1992-1995 GMC SAFARI

  • EngineType: ALL
  • SubModel: SLE

1999 OLDSMOBILE 88

  • EngineType: ALL
  • SubModel: ROYALE LS

1988-1991 BUICK REATTA

  • EngineType: ALL
  • SubModel: ALL

1986 BUICK CENTURY

  • EngineType: ALL
  • SubModel: T-TYPE

1995 CHEVROLET BLAZER

  • EngineType: ALL
  • SubModel: ALL

1998-1999 CHEVROLET LUMINA

  • CC: 3800
  • Liter: 3.8
  • SubModel: LTZ
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1989 BUICK SKYLARK

  • Liter: 3.3
  • SubModel: LIMITED
  • CUI: 204
  • EngineType: V6 ( 3.3 L / 204 )

1997-2005 PONTIAC GRAND PRIX

  • EngineType: ALL
  • SubModel: GTP

1992-1995 GMC SAFARI

  • EngineType: ALL
  • SubModel: SLT

2003 CHEVROLET IMPALA

  • EngineType: ALL
  • SubModel: LS

1989 BUICK ELECTRA

  • EngineType: ALL
  • SubModel: PARK AVENUE

1990 BUICK ELECTRA

  • EngineType: ALL
  • SubModel: ALL

2006-2008 BUICK LUCERNE

  • CC: 3800
  • Liter: 3.8
  • SubModel: CXL
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1995-2002 CHEVROLET CAMARO

  • CC: 3800
  • Liter: 3.8
  • SubModel: BASE
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

2004-2005 CHEVROLET IMPALA

  • CC: 3800
  • Liter: 3.8
  • SubModel: LS
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1994-1998 PONTIAC BONNEVILLE

  • EngineType: ALL
  • SubModel: ALL

2000-2005 CHEVROLET MONTE CARLO

  • EngineType: ALL
  • SubModel: SS

2005 CHEVROLET MONTE CARLO

  • EngineType: ALL
  • SubModel: LT

1995-2002 PONTIAC FIREBIRD

  • CC: 3800
  • Liter: 3.8
  • SubModel: BASE
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

2005-2008 BUICK ALLURE

  • EngineType: ALL
  • SubModel: CX

1996-1997 CHEVROLET CAMARO

  • CC: 3800
  • Liter: 3.8
  • SubModel: RS
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1987-1990 BUICK LESABRE

  • EngineType: ALL
  • SubModel: CUSTOM

1999 OLDSMOBILE INTRIGUE

  • CC: 3800
  • Liter: 3.8
  • SubModel: GL
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1986 BUICK SOMERSET

  • Liter: 3.0
  • SubModel: T-TYPE
  • CUI: 181
  • EngineType: V6 ( 3.0 L / 181 )

1990-1996 BUICK REGAL

  • EngineType: ALL
  • SubModel: GRAN SPORT

1995 OLDSMOBILE SILHOUETTE

  • EngineType: ALL
  • SubModel: ALL

1999 OLDSMOBILE INTRIGUE

  • CC: 3800
  • Liter: 3.8
  • SubModel: GX
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1997-1998 BUICK REGAL

  • EngineType: ALL
  • SubModel: ALL

2000-2002 CHEVROLET IMPALA

  • CC: 3800
  • Liter: 3.8
  • SubModel: LS
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

2000-2003 PONTIAC BONNEVILLE

  • CC: 3800
  • Liter: 3.8
  • Aspiration: N
  • SubModel: SLE
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1980 CHEVROLET MONTE CARLO

  • CC: 3800
  • Liter: 3.8
  • SubModel: SPORT
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1992-1993 OLDSMOBILE 98

  • EngineType: ALL
  • SubModel: REGENCY ELITE

1998 OLDSMOBILE INTRIGUE

  • EngineType: ALL
  • SubModel: ALL

1985 BUICK SOMERSET REGAL

  • Liter: 3.0
  • SubModel: LIMITED
  • CUI: 181
  • EngineType: V6 ( 3.0 L / 181 )

1994-1995 CHEVROLET S10 PICKUP

  • Liter: 4.3
  • SubModel: BASE
  • CUI: 262
  • EngineType: V6 ( 4.3 L / 262 )

1992 PONTIAC BONNEVILLE

  • EngineType: ALL
  • SubModel: ALL

1986-1987 BUICK RIVIERA

  • EngineType: ALL
  • SubModel: T-TYPE

1999 OLDSMOBILE INTRIGUE

  • CC: 3800
  • Liter: 3.8
  • SubModel: GLS
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1990-1991 BUICK SKYLARK

  • Liter: 3.3
  • SubModel: LUXURY EDITION
  • CUI: 204
  • EngineType: V6 ( 3.3 L / 204 )

1987-1991 SUBARU JUSTY

  • EngineType: ALL
  • SubModel: ALL

1987 BUICK LESABRE

  • EngineType: ALL
  • SubModel: T-TYPE

1994 GMC SONOMA

  • Liter: 4.3
  • SubModel: SL
  • CUI: 262
  • EngineType: V6 ( 4.3 L / 262 )

1993-1995 CHEVROLET LUMINA APV

  • CC: 3800
  • Liter: 3.8
  • SubModel: LS
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1992-1993 PONTIAC GRAND AM

  • Liter: 3.3
  • SubModel: SE
  • CUI: 204
  • EngineType: V6 ( 3.3 L / 204 )

1991-1993 BUICK RIVIERA

  • EngineType: ALL
  • SubModel: LUXURY

1987-1990 BUICK LESABRE

  • EngineType: ALL
  • SubModel: LIMITED

1999 OLDSMOBILE 88

  • EngineType: ALL
  • SubModel: 50TH ANNIVERSARY EDITION

1990-1996 BUICK REGAL

  • CC: 3800
  • Liter: 3.8
  • SubModel: CUSTOM
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1999-2000 BUICK REGAL

  • EngineType: ALL
  • SubModel: LS

1992-1994 CHEVROLET S10 BLAZER

  • EngineType: ALL
  • SubModel: ALL

1986-1988 BUICK CENTURY

  • CC: 3800
  • Liter: 3.8
  • SubModel: LIMITED
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1989 PONTIAC FIREBIRD

  • CC: 3800
  • Liter: 3.8
  • SubModel: TRANS AM
  • CUI: 231
  • EngineType: V6 ( 3.8 L / 231 )

1986-1987 BUICK SOMERSET

  • Liter: 3.0
  • SubModel: CUSTOM
  • CUI: 181
  • EngineType: V6 ( 3.0 L / 181 )

1993 GMC SAFARI

  • EngineType: ALL
  • SubModel: GT