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 251-2031

GASKET W/PMP

ACDelco 251-2031

065-251-2031

jegs shipping
Estimated ship date 03/05/18 if Ordered Today
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
ACDelco 251-2031 GASKET W/PMP $28.99
  • Water Pump O-Ring

  • Specifications:

    Color
    Black
    Rim Shape
    Round
    Material
    EPDM Rubber
    Inside Diameter
    1.71 in.
    Inside Diameter (mm)
    43.4
    Thickness (in.)
    0.13
    Thickness (mm)
    3.40
    Position
    Various - Application Specific
    Thickness
    0.13
    Manufacturer's Part Number:
    251-2031

    Does ACDelco 251-2031 fit your vehicle?

    Narrow Results

    2007 GMC SIERRA 2500 HD CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007-2017 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LTZ
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007 GMC SIERRA 3500 CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2004-2006 GMC SIERRA 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2006-2016 GMC SAVANA 2500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001 CHEVROLET SUBURBAN 2500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2006-2016 CHEVROLET EXPRESS 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2002-2003 GMC SIERRA 2500

    • EngineType: ALL
    • SubModel: ALL

    2003 CHEVROLET SILVERADO 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2001-2003 GMC SIERRA 2500 HD

    • EngineType: ALL
    • SubModel: SLE

    2001-2005 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001-2003 CHEVROLET SILVERADO 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007 CHEVROLET SILVERADO 3500 CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007-2017 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LTZ
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2005 CHEVROLET SILVERADO 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2006-2016 GMC SAVANA 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2004-2006 CHEVROLET SILVERADO 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2003-2017 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2002-2003 CHEVROLET SILVERADO 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2002-2003 GMC SIERRA 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2004-2016 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001-2003 GMC SIERRA 3500

    • EngineType: ALL
    • SubModel: SLT

    2007 GMC SIERRA 2500 HD CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001 CHEVROLET SUBURBAN 2500

    • EngineType: ALL
    • SubModel: LT

    2011-2013 GMC SIERRA 3500 HD

    • Liter: 6.6
    • SubModel: WT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    2015-2016 CHEVROLET EXPRESS 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007 GMC SIERRA 3500 CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2006 CHEVROLET SILVERADO 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001 GMC SIERRA 2500

    • EngineType: ALL
    • SubModel: SLT

    2011-2013 GMC SIERRA 3500 HD

    • Liter: 6.6
    • SubModel: SLE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    2006 CHEVROLET EXPRESS 2500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LS
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007 CHEVROLET SILVERADO 3500 CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC LS
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001 CHEVROLET SUBURBAN 2500

    • Liter: 8.1
    • SubModel: BASE
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    2006 GMC SIERRA 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: SL
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2017 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: HIGH COUNTRY
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 GMC SAVANA 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LS
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001-2003 CHEVROLET SUBURBAN 2500

    • EngineType: ALL
    • SubModel: LS

    2002-2003 CHEVROLET SUBURBAN 2500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007 GMC SIERRA 3500 CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC SL
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001-2003 GMC YUKON XL 2500

    • EngineType: ALL
    • SubModel: SLE

    2001-2003 CHEVROLET SILVERADO 2500

    • EngineType: ALL
    • SubModel: ALL

    2001-2002 CHEVROLET SILVERADO 2500 HD

    • EngineType: ALL
    • SubModel: LT

    2007 CHEVROLET SILVERADO 2500 HD CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2002-2003 CHEVROLET SUBURBAN 2500

    • Liter: 8.1
    • SubModel: LT
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    2009-2015 CHEVROLET EXPRESS 4500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001-2002 GMC SIERRA 3500

    • EngineType: ALL
    • SubModel: SL

    2003 GMC SIERRA 2500 HD

    • EngineType: ALL
    • SubModel: WT

    2002-2003 CHEVROLET SILVERADO 3500

    • EngineType: ALL
    • SubModel: LT

    2011-2013 CHEVROLET SILVERADO 3500 HD

    • Liter: 6.6
    • SubModel: LT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    2001 CHEVROLET SILVERADO 3500

    • EngineType: ALL
    • SubModel: ALL

    2004-2006 CHEVROLET SILVERADO 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LS
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2004-2016 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2002-2005 GMC SIERRA 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2003 CHEVROLET SILVERADO 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: WT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2002-2003 CHEVROLET SILVERADO 3500

    • EngineType: ALL
    • SubModel: LS

    2015-2016 CHEVROLET EXPRESS 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LS
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2002-2003 GMC SIERRA 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007-2016 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2003 CHEVROLET SILVERADO 2500 HD

    • Liter: 8.1
    • SubModel: LT
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    2007 CHEVROLET SILVERADO 3500 CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2016 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: DENALI
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2002-2003 CHEVROLET SILVERADO 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2004-2006 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LS
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007 GMC SIERRA 2500 HD CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 CHEVROLET EXPRESS 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LS
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001-2003 CHEVROLET SILVERADO 2500 HD

    • EngineType: ALL
    • SubModel: LS

    2004-2006 GMC SIERRA 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2004 CHEVROLET SILVERADO 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2016 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: DENALI
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2006 CHEVROLET EXPRESS 2500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001-2003 GMC YUKON XL 2500

    • EngineType: ALL
    • SubModel: SLT

    2007-2015 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2004-2017 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007 GMC SIERRA 2500 HD CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC SL
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007-2016 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 GMC SAVANA 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007 GMC SIERRA 3500 CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2006-2016 CHEVROLET EXPRESS 2500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2013 CHEVROLET SILVERADO 3500 HD

    • Liter: 6.6
    • SubModel: WT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    2007-2017 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001 GMC SIERRA 2500

    • EngineType: ALL
    • SubModel: SLE

    2015-2017 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: HIGH COUNTRY
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 CHEVROLET EXPRESS 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2009-2015 GMC SAVANA 4500

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001 GMC SIERRA 2500

    • EngineType: ALL
    • SubModel: SL

    2004 CHEVROLET SILVERADO 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007 CHEVROLET SILVERADO 2500 HD CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC LS
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001-2003 GMC SIERRA 2500 HD

    • EngineType: ALL
    • SubModel: SLT

    2002-2005 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2001-2002 GMC SIERRA 2500 HD

    • EngineType: ALL
    • SubModel: SL

    2001-2003 GMC SIERRA 3500

    • EngineType: ALL
    • SubModel: SLE

    2004-2014 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2006 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SL
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007-2017 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2016 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2004-2006 GMC SIERRA 3500

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2007 CHEVROLET SILVERADO 2500 HD CLASSIC

    • CC: 6599
    • Liter: 6.6
    • SubModel: CLASSIC LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )