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ACDelco 12S21

SEAL ENG COOL THERM

ACDelco 12S21

065-12S21

jegs shipping
Estimated to ship on 05/30/18
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Lowest Price Guarantee
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ACDelco 12S21 SEAL ENG COOL THERM $1.69
  • Engine Coolant Thermostat Seal

  • Specifications:

    Material
    Rubber
    Seal Type
    Gasket O Ring
    Inside Diameter
    1.969
    Inside Diameter (mm)
    50.00
    Outside Diameter
    2.323
    Outside Diameter (mm)
    59.00
    Thickness
    0.146
    Thickness (mm)
    3.700
    Manufacturer's Part Number:
    12S21

    Does ACDelco 12S21 fit your vehicle?

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    Aspiration

    1999 CHEVROLET P30 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998 CHEVROLET C2500 PICKUP

    • Liter: 5.0
    • SubModel: WT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1999 CHEVROLET C1500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994 CHEVROLET S10 PICKUP

    • EngineType: ALL
    • SubModel: ZR2

    1993 GMC K1500

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

    1993-1994 GMC K1500

    • Liter: 5.7
    • SubModel: SIERRA SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983-1987 ISUZU PICKUP

    • CC: 2238
    • Liter: 2.2
    • SubModel: BASE
    • EngineType: L4 ( 2.2 L / 2238 CC )

    1993-1995 GMC K2500 PICKUP

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

    1993 GMC K1500

    • Liter: 5.0
    • SubModel: SIERRA SPORT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1992-1995 CHEVROLET C1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1998-2000 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: SLS

    1993 CHEVROLET S10 PICKUP

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

    1995 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995-1999 GMC K2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SLT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1996 GMC K2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SLT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1993 GMC SAFARI

    • EngineType: ALL
    • SubModel: GT

    1994 GMC K1500

    • Liter: 5.0
    • SubModel: SIERRA SPECIAL
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1993-1994 GMC SAFARI

    • EngineType: ALL
    • SubModel: SLE

    1994-1995 CHEVROLET K2500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1999-2005 CHEVROLET SILVERADO 1500

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

    1992-2000 GMC K3500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1984 NISSAN SENTRA

    • CC: 1688
    • Liter: 1.7
    • SubModel: SE
    • EngineType: L4 ( 1.7 L / 1688 CC )

    1982-1984 JAGUAR VANDEN PLAS

    • CC: 4235
    • Liter: 4.2
    • SubModel: BASE
    • EngineType: L6 ( 4.2 L / 4235 CC )

    1998 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2006 GMC SAVANA 1500

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

    2000 CHEVROLET TAHOE

    • Liter: 5.7
    • SubModel: Z71
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996-1997 GMC YUKON

    • Liter: 5.7
    • SubModel: SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994 GMC K1500

    • Liter: 5.7
    • SubModel: SIERRA SLT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1993 GMC C1500 PICKUP

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

    1998 CHEVROLET C1500 PICKUP

    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1993-1995 CHEVROLET G10 VAN

    • EngineType: ALL
    • SubModel: BEAUVILLE

    1982-1983 CHEVROLET CELEBRITY

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1991 PONTIAC GRAND AM

    • EngineType: ALL
    • SubModel: VALUE LEADER

    1994-1995 GMC C1500 PICKUP

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

    1999 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    2004 GMC SONOMA

    • EngineType: ALL
    • SubModel: SLS

    1992-1995 GMC G25/G2500 VAN

    • Liter: 5.7
    • SubModel: RALLY
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995-1999 GMC C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SLT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983 OLDSMOBILE CUTLASS CIERA

    • CC: 2474
    • Liter: 2.5
    • SubModel: LS
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1982-1983 PONTIAC 6000

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1998 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995-1997 CHEVROLET K1500 SUBURBAN

    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992-1993 GMC K2500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    2004 CHEVROLET SILVERADO 1500

    • Liter: 4.3
    • SubModel: Z71
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1996-2002 GMC SAFARI

    • EngineType: ALL
    • SubModel: SLT

    1992 CHEVROLET C1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1995-1998 CHEVROLET C1500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2006 GMC SIERRA 1500

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

    1983 OLDSMOBILE CUTLASS CIERA

    • CC: 2474
    • Liter: 2.5
    • SubModel: BROUGHAM
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1994-1995 GMC C1500 PICKUP

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

    1998 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: WT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1999 GMC K2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1993-1995 CHEVROLET C2500 PICKUP

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

    1992-1995 GMC G35/G3500 VAN

    • Liter: 5.7
    • SubModel: VANDURA SPECIAL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989 BUICK SKYLARK

    • CC: 2474
    • Liter: 2.5
    • SubModel: LIMITED
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1994-1995 CHEVROLET K2500 PICKUP

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

    1999-2000 CHEVROLET C3500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1986-1987 ISUZU TROOPER

    • CC: 2238
    • Liter: 2.2
    • SubModel: DLX
    • EngineType: L4 ( 2.2 L / 2238 CC )

    1995 GMC K1500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA SLS
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1992-1993 GMC K2500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA SLX
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1993-1994 GMC SAFARI

    • EngineType: ALL
    • SubModel: BASE

    2007 GMC SIERRA 1500 CLASSIC

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

    1998 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996-2002 CHEVROLET EXPRESS 3500

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995-1999 CHEVROLET TAHOE

    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992-1993 GMC K3500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SLX
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1999 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    2004 GMC SONOMA

    • EngineType: ALL
    • SubModel: SL

    2001-2002 GMC SAVANA 2500

    • Liter: 5.0
    • SubModel: SLT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1992-1995 CHEVROLET C1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1993-1995 CHEVROLET G10 VAN

    • EngineType: ALL
    • SubModel: CHEVY VAN

    1984 JAGUAR XJ6

    • EngineType: ALL
    • SubModel: ALL

    1996-2002 CHEVROLET EXPRESS 3500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996-2002 GMC SAVANA 1500

    • EngineType: ALL
    • SubModel: ALL

    2000 ISUZU HOMBRE

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

    1983-1985 MITSUBISHI MIGHTY MAX

    • CC: 2346
    • Liter: 2.3
    • SubModel: SP
    • CUI: 143
    • EngineType: L4 ( 2.3 L / 143 )

    1995-1999 GMC C1500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992-1993 GMC C1500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA SLX
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994-1996 GMC K2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1985 MAZDA RX-7

    • EngineType: ALL
    • SubModel: S

    1989-1991 PONTIAC GRAND AM

    • CC: 2474
    • Liter: 2.5
    • SubModel: LE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1997-1999 ISUZU HOMBRE

    • CC: 4294
    • Liter: 4.3
    • SubModel: XS
    • EngineType: V6 ( 4.3 L / 4294 CC )

    1996-2005 GMC SAVANA 2500

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

    1993 GMC C2500 PICKUP

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

    2001-2002 GMC SAVANA 2500

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

    1992-1994 CHEVROLET K2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2003-2012 CHEVROLET EXPRESS 1500

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

    1994-1996 CHEVROLET K2500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992 GMC G15/G1500 VAN

    • Liter: 5.7
    • SubModel: RALLY STX
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992-1993 CHEVROLET G10 VAN

    • Liter: 5.7
    • Aspiration: N
    • SubModel: SPORTVAN
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995 GMC K1500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SPECIAL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992 GMC K2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1997 CHEVROLET K2500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992 GMC G15/G1500 VAN

    • Liter: 5.0
    • SubModel: RALLY STX
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983-1986 NISSAN SENTRA

    • CC: 1688
    • Liter: 1.7
    • SubModel: BASE
    • EngineType: L4 ( 1.7 L / 1688 CC )

    1996-1997 CHEVROLET C2500 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1993-1994 CHEVROLET S10 BLAZER

    • EngineType: ALL
    • SubModel: ALL

    1996-1999 CHEVROLET SILVERADO

    • EngineType: ALL
    • SubModel: ALL

    1995 GMC K1500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992-1995 GMC G35/G3500 VAN

    • Liter: 5.7
    • SubModel: MAGNAVAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
    Some parts are not legal for use in California or other states with similar laws / regulations