Car Parts Discount

GMC Sierra 3500 HD Relay

Why you drive your Sierra 3500 HD.

Select Your VehicleAnyone who operates a GMC knows that when it comes to repairing their vehicle only the highest quality replacement parts will do. It's not all the time that you discover you need a replacement Relay to fix your vehicle. Your GMC dealership isn't the only place to locate the best parts to repair your Sierra 3500 HD. Obviously, you bought your Sierra 3500 HD because you wanted to buy horsepower and great value both impeccably combined into one vehicle.

What Relay does for your vehicle.

A relay is basically a switch that can be used electrically. Electromechanical relays are the most common ones on the market. They perform their functions by turning on electromagnets that move the entire set of contacts to make or break circuits. Relays also enable you to perform your GMC Sierra 3500 HD logical car functions and inputs. If your GMC Sierra 3500 HD fails to start when you turn the ignition switch on, and if the engine light is unable to switch "ON" and "OFF", it is an indication that the main relay is broken. You can repair it, or buy a new one for a faster solution.

The best auto parts .

Trust in the value of the parts you get from carpartsdiscount.com and save time and money on all your upcoming repairs. Bring your Sierra 3500 HD back to life with the best new or rebuilt parts from the experts at Car Parts Discount. Don't let a Relay repair bring about the demise of your car, truck, or SUV, and don't risk lowering its resale value by using anything but the best replacement parts. If your car or truck was built in 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, then you will find the correct GMC Sierra 3500 HD Relay parts right here.

Info: Select your make and model in the red title bar above so we can show the parts you need.
GMC Sierra 3500 HD Engine Cooling Fan Motor Relay, OEM: 15-81106/1581106ACDelco
2007-2014 GMC Sierra 3500 HD ACDelco Engine Cooling Fan Motor Relay 15-81106
3.95, Save 40%   NEW ITEM
OEM: 15-81106, Item: 886005
  In Stock, Usually ships within 1 business day
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ACDelco
2007-2014 GMC Sierra 3500 HD ACDelco Engine Cooling Fan Motor Relay 13503102
5.15, Save 40%   NEW ITEM
OEM: 13503102, Item: 1423186
  In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Parking Light Relay, OEM: D1777CACDelco
2007-2017 GMC Sierra 3500 HD ACDelco Parking Light Relay D1777C
6.85, Save 39%   NEW ITEM
OEM: D1777C, Item: 695237
  Only 6 left In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD A/C Compressor Control Relay, OEM: D1741CACDelco
2007-2012 GMC Sierra 3500 HD ACDelco A/C Compressor Control Relay D1741C
7.45, Save 39%   NEW ITEM
OEM: D1741C, Item: 899739
  In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Engine Cooling Fan Motor Relay, OEM: D1786CACDelco
2007-2017 GMC Sierra 3500 HD ACDelco Engine Cooling Fan Motor Relay D1786C
8.95, Save 39%  
OEM: D1786C, Item: 899747
  In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Low Beam, High Beam

GMC Sierra 3500 HD Pulse Wiper Relay, OEM: D1780CACDelco
2015-2017 GMC Sierra 3500 HD ACDelco Pulse Wiper Relay D1780C
9.25, Save 40%   NEW ITEM
OEM: D1780C, Item: 899746
  In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD A/C Control Relay, OEM: RY282TSMP
2007-2012 GMC Sierra 3500 HD SMP A/C Control Relay RY282T
12.15, Save 39%   NEW ITEM
OEM: RY282T, Item: 776154
  In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Multi-Purpose Relay, OEM: HP4655SMP
2007-2012 GMC Sierra 3500 HD SMP Multi-Purpose Relay HP4655
23.45, Save 39%   NEW ITEM
OEM: HP4655, Item: 335022
  In Stock, Usually ships within 1 business day
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ACDelco
2007-2014, 2016 GMC Sierra 3500 HD ACDelco Electronic Brake Control Relay 19118886
26.25, Save 39%   NEW ITEM
OEM: 19118886, Item: 1215746
  In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Rear

GMC Sierra 3500 HD HVAC Blower Motor Connector, OEM: PT731ACDelco
2007-2008 GMC Sierra 3500 HD ACDelco HVAC Blower Motor Connector PT731
28.65, Save 39%   NEW ITEM
OEM: PT731, Item: 901307
  In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Engine Cooling Fan Motor Relay, OEM: 15016745ACDelco
2010-2014 GMC Sierra 3500 HD ACDelco Engine Cooling Fan Motor Relay 15016745
29.95, Save 39%   NEW ITEM
OEM: 15016745, Item: 896808
  In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD HVAC Blower Motor Connector, OEM: PT2189ACDelco
2007-2008 GMC Sierra 3500 HD ACDelco HVAC Blower Motor Connector PT2189
34.15, Save 39%   NEW ITEM
OEM: PT2189, Item: 901856
  Only 2 left In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Trailer Tow Relay, OEM: 20904439ACDelco
2007-2014 GMC Sierra 3500 HD ACDelco Trailer Tow Relay 20904439
35.05, Save 39%  
OEM: 20904439, Item: 897675
  In Stock, Usually ships within 1 business day
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GMC Sierra 3500 HD Multi Purpose Relay, OEM: 12135194ACDelco
2007-2017 GMC Sierra 3500 HD ACDelco Multi Purpose Relay 12135194
41.45, Save 39%   NEW ITEM
OEM: 12135194, Item: 896212
  Only 3 left In Stock, Usually ships within 1 business day
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