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Dorman 645-236 HVAC Blower Motor Wiring HarnessOE Quality 60-Day Returns
Part #: 645-236

Dorman 645-236 HVAC Blower Motor Wiring Harness

135 vehicles fit this part
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Fitment: Cadillac, Chevrolet, GMC, and Hummer, Avalanche, Escalade, Escalade ESV, Escalade EXT, H2, Sierra, Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Silverado 1500, Silverado 2500, Silverado 2500 HD, Silverado 3500, Silverado 3500 HD, Tahoe, Yukon, Yukon XL 1500, and Yukon XL 2500
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Not what you need? See all HVAC Blower Motor Wiring Harness options

HVAC Blower Motor Wiring Harness

Dorman 645-236 is an HVAC blower motor wiring harness built to match the fit, function, and electrical performance of the original harness on specified vehicles. It restores a secure connection between the blower motor and the resistor or fan control module when the factory harness has failed from heat, corrosion, or wear.

Compatible with 2007-2014 Cadillac Escalade, 2007-2014 Chevrolet Silverado 1500, and 2007-2014 GMC Sierra applications, this harness is a direct-fit repair for blower motor circuit damage. The Dorman 645-236 helps return proper cabin airflow and air conditioning operation without replacing the entire HVAC system.

Key Features

  • Direct replacement HVAC blower motor wiring harness for specified GM trucks and SUVs
  • Designed to restore a secure electrical connection at the blower motor circuit
  • Built to match original equipment fit, function, and performance
  • 2-wire design with blade and Aspa terminal ends
  • 14-inch length and 13-gauge wire construction
  • Fits blower motor, resistor, or fan control module repair needs on supported vehicles

Detailed Description

This blower motor wiring harness is engineered for vehicles where the original connector has melted, corroded, or otherwise failed. It is a practical repair for HVAC systems that lose blower operation, run intermittently, or show signs of heat damage at the connector. The Dorman 645-236 is a direct OE-style replacement for select Cadillac Escalade, Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, and related applications from 2007-2014.

This part cross-references GM OE part numbers 15887352 and 22957044 for the same application. Use Dorman 645-236 when you need a replacement blower motor pigtail that matches the original terminal layout and supports reliable electrical continuity in the HVAC circuit.

Common Problems It Can Help Solve

  • Blower motor stops working due to a damaged connector
  • Intermittent fan operation caused by heat-damaged wiring
  • Melted or corroded HVAC harness terminals
  • Poor electrical contact between the blower motor and control module
  • Loss of cabin airflow or reduced air conditioning performance

Installation Notes and Tips

Verify connector style, terminal count, and wire length before installation. This harness uses blade and Aspa terminal types, so confirm the original connector layout on the vehicle before splicing or replacing the damaged section. For best results, inspect the blower motor, resistor, and fan control module for heat damage before completing the repair.

Compatible With 2007-2014 Cadillac Escalade, 2007-2014 Cadillac Escalade ESV, 2007-2013 Cadillac Escalade EXT, 2007-2014 Chevrolet Silverado 1500, 2007-2014 Chevrolet Silverado 2500, 2007-2014 Chevrolet Silverado 2500 HD, 2007-2014 Chevrolet Silverado 3500 HD, 2007-2013 Chevrolet Avalanche, 2007-2014 Chevrolet Tahoe, 2007-2014 GMC Sierra, 2007-2014 GMC Sierra 1500, 2007-2014 GMC Sierra 2500 HD, 2007-2014 GMC Sierra 3500 HD, 2007-2014 GMC Yukon, 2007-2014 GMC Yukon XL 1500, 2007-2013 GMC Yukon XL 2500, and 2007-2009 Hummer H2.

Quality Assurance

Dorman designs this harness as an OE-style replacement for specified GM HVAC repairs, with construction intended to restore dependable blower motor circuit performance on supported Cadillac, Chevrolet Silverado, and GMC Sierra applications.

BrandDorman
Part Number645-236
Length14
Wire Gauge Measurement13
End 2 Terminal Quantity2
End 1 Terminal Quantity2
End 1 Terminal TypeAspa
End 1 Terminal TypeBlade
Wire Quantity2
Connector Quantity4
Contenidos del paquete1 empalme flexible
End 2 Terminal TypeBlade
Package Contents1 pigtail
Tipo de terminal del extremo 2Aspa

This part fits 135 vehicles. Search below:

YearMakeModelPositionNotes
2014CadillacEscaladeN/A
2014CadillacEscalade ESVN/A
2014ChevroletSilverado 1500N/A
2014ChevroletSilverado 2500N/A
2014ChevroletSilverado 2500 HDN/A
2014ChevroletSilverado 3500 HDN/A
2014ChevroletTahoeN/A
2014GMCSierraN/A
2014GMCSierra 1500N/A
2014GMCSierra 2500 HDN/A
2014GMCSierra 3500 HDN/A
2014GMCYukonN/A
2014GMCYukon XL 1500N/A
2013CadillacEscaladeN/A
2013CadillacEscalade ESVN/A
2013CadillacEscalade EXTN/A
2013ChevroletAvalancheN/A
2013ChevroletSilverado 1500N/A
2013ChevroletSilverado 2500N/A
2013ChevroletSilverado 2500 HDN/A
2013ChevroletSilverado 3500N/A
2013ChevroletSilverado 3500 HDN/A
2013ChevroletTahoeN/A
2013GMCSierraN/A
2013GMCSierra 1500N/A
2013GMCSierra 2500 HDN/A
2013GMCSierra 3500 HDN/A
2013GMCYukonN/A
2013GMCYukon XL 1500N/A
2013GMCYukon XL 2500N/A
2012CadillacEscaladeN/A
2012CadillacEscalade ESVN/A
2012CadillacEscalade EXTN/A
2012ChevroletAvalancheN/A
2012ChevroletSilverado 1500N/A
2012ChevroletSilverado 2500N/A
2012ChevroletSilverado 2500 HDN/A
2012ChevroletSilverado 3500N/A
2012ChevroletSilverado 3500 HDN/A
2012ChevroletTahoeN/A
2012GMCSierraN/A
2012GMCSierra 1500N/A
2012GMCSierra 2500 HDN/A
2012GMCSierra 3500 HDN/A
2012GMCYukonN/A
2012GMCYukon XL 1500N/A
2012GMCYukon XL 2500N/A
2011CadillacEscaladeN/A
2011CadillacEscalade ESVN/A
2011CadillacEscalade EXTN/A
2011ChevroletAvalancheN/A
2011ChevroletSilverado 1500N/A
2011ChevroletSilverado 2500N/A
2011ChevroletSilverado 2500 HDN/A
2011ChevroletSilverado 3500N/A
2011ChevroletSilverado 3500 HDN/A
2011ChevroletTahoeN/A
2011GMCSierraN/A
2011GMCSierra 1500N/A
2011GMCSierra 2500 HDN/A
2011GMCSierra 3500 HDN/A
2011GMCYukonN/A
2011GMCYukon XL 1500N/A
2011GMCYukon XL 2500N/A
2010CadillacEscaladeN/A
2010CadillacEscalade ESVN/A
2010CadillacEscalade EXTN/A
2010ChevroletAvalancheN/A
2010ChevroletSilverado 1500N/A
2010ChevroletSilverado 2500N/A
2010ChevroletSilverado 2500 HDN/A
2010ChevroletSilverado 3500N/A
2010ChevroletSilverado 3500 HDN/A
2010ChevroletTahoeN/A
2010GMCSierraN/A
2010GMCSierra 1500N/A
2010GMCSierra 2500 HDN/A
2010GMCSierra 3500 HDN/A
2010GMCYukonN/A
2010GMCYukon XL 1500N/A
2010GMCYukon XL 2500N/A
2009CadillacEscaladeN/A
2009CadillacEscalade ESVN/A
2009CadillacEscalade EXTN/A
2009ChevroletAvalancheN/A
2009ChevroletSilverado 1500N/A
2009ChevroletSilverado 2500N/A
2009ChevroletSilverado 2500 HDN/A
2009ChevroletSilverado 3500N/A
2009ChevroletSilverado 3500 HDN/A
2009ChevroletTahoeN/A
2009GMCSierraN/A
2009GMCSierra 1500N/A
2009GMCSierra 2500 HDN/A
2009GMCSierra 3500 HDN/A
2009GMCYukonN/A
2009GMCYukon XL 1500N/A
2009GMCYukon XL 2500N/A
2009HummerH2N/A
2008CadillacEscaladeN/A
2008CadillacEscalade ESVN/A
2008CadillacEscalade EXTN/A
2008ChevroletAvalancheN/A
2008ChevroletSilverado 1500N/A
2008ChevroletSilverado 2500N/A
2008ChevroletSilverado 2500 HDN/A
2008ChevroletSilverado 3500N/A
2008ChevroletSilverado 3500 HDN/A
2008ChevroletTahoeN/A
2008GMCSierraN/A
2008GMCSierra 1500N/A
2008GMCSierra 2500 HDN/A
2008GMCSierra 3500 HDN/A
2008GMCYukonN/A
2008GMCYukon XL 1500N/A
2008GMCYukon XL 2500N/A
2008HummerH2N/A
2007CadillacEscaladeN/A
2007CadillacEscalade ESVN/A
2007CadillacEscalade EXTN/A
2007ChevroletAvalancheN/A
2007ChevroletSilverado 1500N/A
2007ChevroletSilverado 2500N/A
2007ChevroletSilverado 2500 HDN/A
2007ChevroletSilverado 3500N/A
2007ChevroletSilverado 3500 HDN/A
2007ChevroletTahoeN/A
2007GMCSierraN/A
2007GMCSierra 1500N/A
2007GMCSierra 2500 HDN/A
2007GMCSierra 3500 HDN/A
2007GMCYukonN/A
2007GMCYukon XL 1500N/A
2007GMCYukon XL 2500N/A
2007HummerH2N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1588735222957044

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.