US Motor Works MCK1055-T Engine Water Pump with Fan Clutch
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US Motor Works

US Motor Works MCK1055-T Engine Water Pump with Fan Clutch

Brand US Motor Works MCK1055-T
Includes Mounting hardware, gaskets and accessories as required
Fits Chevrolet, GMC, and Hummer · 121 vehicles

OE-spec matched set. Water pump and fan clutch are designed and tested to meet or exceed original equipment specifications.

Complete installation kit. Includes mounting hardware, gaskets, and accessories as required.

Cooling system restored. Replaces the components that move water and air to help keep the engine cool.

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Not what you need? See all Engine Water Pump with Fan Clutch options

Engine Water Pump with Fan Clutch for GM Cooling Repair

US Motor Works MCK1055-T is a matched engine water pump with fan clutch assembly for GM vans and trucks with A/C. It is built for direct replacement service on applications such as Chevrolet Express, GMC Savana, Silverado, Sierra, Yukon, and Hummer H2 models listed below.

This matched cooling set helps restore proper coolant circulation and airflow control in one repair. The water pump and fan clutch are engineered and tested to meet or exceed original equipment specifications, with precision-machined components for consistent engine cooling and long-term durability.

  • Engine water pump with fan clutch for cooling system service
  • Designed and tested to meet or exceed original equipment specifications
  • Precision-machined components for reliable fit and operation
  • Includes mounting hardware, gaskets and accessories as required
  • Fits a wide range of Chevrolet, GMC, and Hummer applications with A/C

Fitment Details

  • Fits 2020 Chevrolet Express 2500, A/C
  • Fits 2015-2018 Chevrolet Express 2500, A/C
  • Fits 2015-2019 Chevrolet Express 3500, A/C
  • Fits 2017-2019 GMC Savana 2500, A/C
  • Fits 2015 GMC Savana 2500, A/C
  • Fits 2017-2019 GMC Savana 3500, A/C
  • Fits 2016 GMC Savana 2500, Exc. Cutaway Chassis (A/C)
  • Fits 2015-2016 GMC Savana 3500, With A/C
  • Fits 2014 Chevrolet Express 1500, A/C
  • Fits 2007-2014 Chevrolet Express 2500, For A/C Belt
  • Fits 2007-2014 Chevrolet Express 3500, For A/C Belt
  • Fits 2007-2014 GMC Savana 1500, For A/C Belt
  • Fits 2007-2014 GMC Savana 2500, For A/C Belt
  • Fits 2007-2014 GMC Savana 3500, For A/C Belt
  • Fits 2007-2013 Chevrolet Express 1500, For A/C Belt
  • Fits 2007-2013 Chevrolet Suburban 2500, Set includes thermostat and housing
  • Fits 2007-2013 GMC Yukon XL 2500, Set includes thermostat and housing
  • Fits 2007-2010 Chevrolet Silverado 2500 HD, Set includes thermostat and housing
  • Fits 2007-2010 Chevrolet Silverado 3500 HD, Set includes thermostat and housing
  • Fits 2007-2010 GMC Sierra 2500 HD, Set includes thermostat and housing
  • Fits 2007-2010 GMC Sierra 3500 HD, Set includes thermostat and housing
  • Fits 2008-2010 GMC Yukon, Set includes thermostat and housing
  • Fits 2007 Chevrolet Silverado 1500 Classic, Set includes thermostat and housing
  • Fits 2007 Chevrolet Silverado 1500 HD Classic, Set includes thermostat and housing
  • Fits 2007 Chevrolet Silverado 2500 HD Classic, Set includes thermostat and housing
  • Fits 2007 Chevrolet Silverado 3500 Classic, Set includes thermostat and housing
  • Fits 2007 Chevrolet Suburban 1500, Set includes thermostat and housing
  • Fits 2007 GMC Sierra 1500 Classic, Set includes thermostat and housing
  • Fits 2007 GMC Sierra 1500 HD Classic, Set includes thermostat and housing
  • Fits 2007 GMC Sierra 2500 HD Classic, Set includes thermostat and housing
  • Fits 2007 GMC Sierra 3500 Classic, Set includes thermostat and housing
  • Fits 2007 Hummer H2, Set includes thermostat and housing

Common Cooling System Problems

  • Overheating caused by a worn water pump or weak fan clutch
  • Reduced coolant circulation in high-load driving or towing conditions
  • Fan clutch engagement issues that affect airflow through the radiator
  • Cooling system noise or vibration from worn rotating components
  • Repeat repairs when only one connected cooling component is replaced

Installation Notes and Tips

Replace the water pump and fan clutch together when servicing the cooling system to avoid repeat labor. Verify belt routing, pulley condition, gasket surfaces, and coolant condition before installation. This part number, MCK1055-T, is intended for the listed GM applications with A/C, including Chevrolet Express 2500, GMC Savana 3500, and related Silverado, Sierra, Yukon, and Hummer H2 fitments.

Quality Assurance

US Motor Works designs and tests this assembly to meet or exceed original equipment specifications. The matched water pump and fan clutch configuration is built to support proper engine cooling and dependable operation in the listed applications. Part number MCK1055-T is a direct replacement solution for cooling system repair on compatible GM vehicles.

Related reading

This part fits 121 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersNotes
2020ChevroletExpress 2500LT6.0LV8A/C
2019ChevroletExpress 3500LT6.0LV8A/C
2019GMCSavana 2500LT6.0LV8A/C
2019GMCSavana 3500LT6.0LV8A/C
2018ChevroletExpress 2500LT6.0LV8A/C
2018ChevroletExpress 3500LT6.0LV8A/C
2018GMCSavana 2500LT6.0LV8A/C
2018GMCSavana 3500LT6.0LV8A/C
2017ChevroletExpress 2500LT6.0LV8A/C
2017ChevroletExpress 3500LT6.0LV8A/C
2017GMCSavana 2500LT6.0LV8A/C
2017GMCSavana 3500LT6.0LV8A/C
2016ChevroletExpress 2500LT6.0LV8A/C
2016ChevroletExpress 3500LT6.0LV8A/C
2016GMCSavana 2500Base6.0LV8Exc.Cutaway Chassis (A/C)
2016GMCSavana 3500LT6.0LV8With A/C
2015ChevroletExpress 2500LT6.0LV8A/C
2015ChevroletExpress 3500LT6.0LV8A/C
2015GMCSavana 2500LS6.0LV8A/C
2015GMCSavana 3500LT6.0LV8With A/C
2014ChevroletExpress 1500LT5.3LV8A/C
2014ChevroletExpress 2500LT6.0LV8For A/C Belt
2014ChevroletExpress 3500LT6.0LV8For A/C Belt
2014GMCSavana 1500LT5.3LV8For A/C Belt
2014GMCSavana 2500LT6.0LV8For A/C Belt
2014GMCSavana 3500LT6.0LV8For A/C Belt
2013ChevroletExpress 1500LT5.3LV8For A/C Belt
2013ChevroletExpress 2500LT6.0LV8For A/C Belt
2013ChevroletExpress 3500LT6.0LV8For A/C Belt
2013ChevroletExpress 4500Base6.0LV8With A/C
2013ChevroletSuburban 2500LT6.0LV8Set includes thermostat and housing
2013GMCSavana 1500LT5.3LV8For A/C Belt
2013GMCSavana 2500LT6.0LV8For A/C Belt
2013GMCSavana 3500LT6.0LV8For A/C Belt
2013GMCSavana 4500—6.0LV8With A/C
2013GMCYukon XL 2500—6.0LV8Set includes thermostat and housing
2012ChevroletExpress 1500LT5.3LV8For A/C Belt
2012ChevroletExpress 2500LT6.0LV8For A/C Belt
2012ChevroletExpress 3500LT6.0LV8For A/C Belt
2012ChevroletExpress 4500Base6.0LV8With A/C
2012ChevroletSuburban 2500LT6.0LV8Set includes thermostat and housing
2012GMCSavana 1500LT5.3LV8For A/C Belt
2012GMCSavana 2500LT6.0LV8For A/C Belt
2012GMCSavana 3500LT6.0LV8For A/C Belt
2012GMCSavana 4500—6.0LV8With A/C
2012GMCYukon XL 2500—6.0LV8Set includes thermostat and housing
2011ChevroletExpress 1500LT5.3LV8For A/C Belt
2011ChevroletExpress 2500LT6.0LV8For A/C Belt
2011ChevroletExpress 3500LT6.0LV8For A/C Belt
2011ChevroletExpress 4500Base6.0LV8With A/C
2011ChevroletSuburban 2500LT6.0LV8Set includes thermostat and housing
2011GMCSavana 1500LT5.3LV8For A/C Belt
2011GMCSavana 2500LT6.0LV8For A/C Belt
2011GMCSavana 3500LT6.0LV8For A/C Belt
2011GMCSavana 4500—6.0LV8With A/C
2011GMCYukon XL 2500—6.0LV8Set includes thermostat and housing
2010ChevroletExpress 1500LT5.3LV8For A/C Belt
2010ChevroletExpress 2500LT6.0LV8For A/C Belt
2010ChevroletExpress 3500LT6.0LV8For A/C Belt
2010ChevroletExpress 4500—6.0LV8With A/C
2010ChevroletSilverado 2500 HDWT6.0LV8Set includes thermostat and housing
2010ChevroletSilverado 3500 HDWT6.0LV8Set includes thermostat and housing
2010ChevroletSuburban 2500LT6.0LV8Set includes thermostat and housing
2010GMCSavana 1500LT5.3LV8For A/C Belt
2010GMCSavana 2500LT6.0LV8For A/C Belt
2010GMCSavana 3500LT6.0LV8For A/C Belt
2010GMCSavana 4500—6.0LV8With A/C
2010GMCSierra 2500 HDWT6.0LV8Set includes thermostat and housing
2010GMCSierra 3500 HDWT6.0LV8Set includes thermostat and housing
2010GMCYukonHybrid6.0LV8Set includes thermostat and housing
2010GMCYukon XL 2500—6.0LV8Set includes thermostat and housing
2009ChevroletExpress 1500—5.3LV8For A/C Belt
2009ChevroletExpress 2500—6.0LV8For A/C Belt
2009ChevroletExpress 3500—6.0LV8For A/C Belt
2009ChevroletExpress 4500—6.0LV8With A/C
2009ChevroletSilverado 2500 HD—6.0LV8Set includes thermostat and housing
2009ChevroletSilverado 3500 HD—6.0LV8Set includes thermostat and housing
2009ChevroletSuburban 2500LT6.0LV8Set includes thermostat and housing
2009GMCSavana 1500LT5.3LV8For A/C Belt
2009GMCSavana 2500—6.0LV8For A/C Belt
2009GMCSavana 3500—6.0LV8For A/C Belt
2009GMCSavana 4500—6.0LV8With A/C
2009GMCSierra 2500 HD—6.0LV8Set includes thermostat and housing
2009GMCSierra 3500 HD—6.0LV8Set includes thermostat and housing
2009GMCYukonHybrid6.0LV8Set includes thermostat and housing
2009GMCYukon XL 2500—6.0LV8Set includes thermostat and housing
2008ChevroletExpress 1500—5.3LV8For A/C Belt
2008ChevroletExpress 2500—6.0LV8For A/C Belt
2008ChevroletExpress 3500—6.0LV8For A/C Belt
2008ChevroletSilverado 2500 HD—6.0LV8Set includes thermostat and housing
2008ChevroletSilverado 3500 HD—6.0LV8Set includes thermostat and housing
2008ChevroletSuburban 2500LT6.0LV8Set includes thermostat and housing
2008GMCSavana 1500—5.3LV8For A/C Belt
2008GMCSavana 2500—6.0LV8For A/C Belt
2008GMCSavana 3500—6.0LV8For A/C Belt
2008GMCSierra 2500 HD—6.0LV8Set includes thermostat and housing
2008GMCSierra 3500 HD—6.0LV8Set includes thermostat and housing
2008GMCYukonHybrid6.0LV8Set includes thermostat and housing
2008GMCYukon XL 2500—6.0LV8Set includes thermostat and housing
2007ChevroletExpress 1500LT5.3LV8For A/C Belt
2007ChevroletExpress 2500—6.0LV8For A/C Belt
2007ChevroletExpress 3500—6.0LV8For A/C Belt
2007ChevroletSilverado 1500 ClassicSS6.0LV8Set includes thermostat and housing
2007ChevroletSilverado 1500 HD Classic—6.0LV8Set includes thermostat and housing
2007ChevroletSilverado 2500 HD—6.0LV8Set includes thermostat and housing
2007ChevroletSilverado 2500 HD Classic—6.0LV8Set includes thermostat and housing
2007ChevroletSilverado 3500 Classic—6.0LV8Set includes thermostat and housing
2007ChevroletSilverado 3500 HD—6.0LV8Set includes thermostat and housing
2007ChevroletSuburban 1500LTZ6.0LV8Set includes thermostat and housing
2007ChevroletSuburban 2500—6.0LV8Set includes thermostat and housing
2007GMCSavana 1500—5.3LV8For A/C Belt
2007GMCSavana 2500Base6.0LV8For A/C Belt
2007GMCSavana 3500—6.0LV8For A/C Belt
2007GMCSierra 1500 ClassicSLT6.0LV8Set includes thermostat and housing
2007GMCSierra 1500 HD Classic—6.0LV8Set includes thermostat and housing
2007GMCSierra 2500 HD—6.0LV8Set includes thermostat and housing
2007GMCSierra 2500 HD Classic—6.0LV8Set includes thermostat and housing
2007GMCSierra 3500 Classic—6.0LV8Set includes thermostat and housing
2007GMCSierra 3500 HD—6.0LV8Set includes thermostat and housing
2007GMCYukon XL 2500—6.0LV8Set includes thermostat and housing
2007HummerH2—6.0LV8Set includes thermostat and housing