Car Parts Discount

GMC Sierra 2500 HD Relay

Great cars and trucks like your Sierra 2500 HD need great parts.

Select Your VehicleWhen your GMC Sierra 2500 HD was born, it was destined for a driver who values longevity in their automobile. Your GMC dealership isn't the only place to locate trusted parts to repair your Sierra 2500 HD. The vehicle in your driveway symbolizes the best in class when it comes to all the cars, trucks, and SUVs these days. Auto enthusiasts know that a brand you can trust is built into each GMC, and understand that only the best repair Sierra 2500 HD parts will suffice when repairs are needed.

What Relay does for your vehicle.

A relay represents a switch that can be used electrically. Electromechanical relays are the most common ones on the market. They perform their functions by activating electromagnets that put into motion the entire set of contacts to make or break circuits. Relays also let you to perform your GMC Sierra 2500 HD logical car functions and inputs. If your GMC Sierra 2500 HD fails to start when you use the ignition switch, and if the engine light can't 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.

We've got all the top brands.

Ordering new GMC parts from www.carpartsdiscount.com means you are taking advantage of the absolute greatest original and aftermarket replacement Sierra 2500 HD parts on the internet. Get your Sierra 2500 HD back on the road with the highest quality new or rebuilt parts from the experts at Car Parts Discount. Given all the trouble that can be involved with installing a part to fix your car or truck, let www.carpartsdiscount.com be the number one store you go to make buying it easy. If your car or truck was built in 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, then you will find the correct GMC Sierra 2500 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 2500 HD A/C Clutch Relay, OEM: 36141Four Seasons
2012-2013 GMC Sierra 2500 HD Four Seasons A/C Clutch Relay 36141
54.35, Save 39%   NEW ITEM
OEM: 36141, Item: 410884
  In Stock, Usually ships within 1 business day

Special relay, recommended to help prevent compressor damage on vehicles with Low Mount Compressor.

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GMC Sierra 2500 HD A/C Clutch Relay, OEM: 36141Four Seasons
2012-2013 GMC Sierra 2500 HD Four Seasons A/C Clutch Relay 36141
43.85, Save 39%   NEW ITEM
OEM: 36141, Item: 1015707
  Only 3 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD A/C Compressor Control Relay, OEM: RY862SMP
2008-2015 GMC Sierra 2500 HD SMP A/C Compressor Control Relay RY862
4.55, Save 40%   NEW ITEM
OEM: RY862, Item: 352745
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD A/C Compressor Control Relay, OEM: D1741CACDelco
2001-2012 GMC Sierra 2500 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 2500 HD A/C Control Relay, OEM: RY282TSMP
2001-2012 GMC Sierra 2500 HD SMP A/C Control Relay RY282T
10.75, Save 39%   NEW ITEM
OEM: RY282T, Item: 776154
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Diesel Glow Plug Relay, OEM: RY585SMP
2001-2004 GMC Sierra 2500 HD SMP Diesel Glow Plug Relay RY585
118.85, Save 39%   NEW ITEM
OEM: RY585, Item: 418548
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Diesel Glow Plug Relay, OEM: RY1832SMP
2006 GMC Sierra 2500 HD SMP Diesel Glow Plug Relay RY1832
119.85, Save 39%   NEW ITEM
OEM: RY1832, Item: 1348891
  Only 4 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Diesel Glow Plug Relay, OEM: 904-100/904100Dorman
2001-2004 GMC Sierra 2500 HD Dorman Diesel Glow Plug Relay 904-100
Add for Price, Save 29%   NEW ITEM
OEM: 904-100, Item: 689228
  Only 1 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Engine Air Intake Heater Relay, OEM: RY-1567/RY1567SMP
2001-2004 GMC Sierra 2500 HD SMP Engine Air Intake Heater Relay RY-1567
174.85, Save 39%   NEW ITEM
OEM: RY-1567, Item: 1100400
  Only 3 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Engine Cooling Fan Motor Relay, OEM: 15016745ACDelco
2011-2014 GMC Sierra 2500 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 2500 HD Engine Cooling Fan Motor Relay, OEM: RY242TSMP
2001-2002 GMC Sierra 2500 HD SMP Engine Cooling Fan Motor Relay RY242T
10.15, Save 39%   NEW ITEM
OEM: RY242T, Item: 649093
  Only 4 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Engine Cooling Fan Motor Relay, OEM: 15-81106/1581106ACDelco
2001-2002, 2005-2014 GMC Sierra 2500 HD ACDelco Engine Cooling Fan Motor Relay 15-81106
3.55, Save 40%   NEW ITEM
OEM: 15-81106, Item: 886005
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Engine Cooling Fan Motor Relay, OEM: D1786CACDelco
2001-2018 GMC Sierra 2500 HD ACDelco Engine Cooling Fan Motor Relay D1786C
8.95, Save 39%   NEW ITEM
OEM: D1786C, Item: 899747
  In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Rear, Low Beam, High Beam

ACDelco
2001-2014 GMC Sierra 2500 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 2500 HD Fuel Pump Relay, OEM: D1777CACDelco
2007-2018 GMC Sierra 2500 HD ACDelco Fuel Pump Relay D1777C
6.75, Save 39%   NEW ITEM
OEM: D1777C, Item: 899745
  Only 4 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Headlight Relay, OEM: 601-218/601218Dorman
2002-2014 GMC Sierra 2500 HD Dorman Headlight Relay 601-218
26.25, Save 39%   NEW ITEM
OEM: 601-218, Item: 1483546
  In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Low Beam

ACDelco
2001-2014, 2016 GMC Sierra 2500 HD ACDelco Headlight Relay 19118886
26.55, Save 39%   NEW ITEM
OEM: 19118886, Item: 1214930
  Only 1 left In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Rear, Roof Mount

GMC Sierra 2500 HD HVAC Blower Motor Connector, OEM: PT731ACDelco
2006-2008 GMC Sierra 2500 HD ACDelco HVAC Blower Motor Connector PT731
25.25, Save 39%  
OEM: PT731, Item: 901307
  Only 9 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Ignition Relay, OEM: RY-1763/RY1763SMP
2015 GMC Sierra 2500 HD SMP Ignition Relay RY-1763
5.75, Save 40%   NEW ITEM
OEM: RY-1763, Item: 1100542
  Only 2 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Instrument Panel Wiring Harness Relay, OEM: D1703AACDelco
2003-2006 GMC Sierra 2500 HD ACDelco Instrument Panel Wiring Harness Relay D1703A
5.55, Save 40%   NEW ITEM
OEM: D1703A, Item: 899736
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi Purpose Relay, OEM: RY333SMP
2001-2010 GMC Sierra 2500 HD SMP Multi Purpose Relay RY333
33.95, Save 39%   NEW ITEM
OEM: RY333, Item: 317758
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi Purpose Relay, OEM: SS613SMP
2001-2010 GMC Sierra 2500 HD SMP Multi Purpose Relay SS613
13.95, Save 39%   NEW ITEM
OEM: SS613, Item: 318581
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi Purpose Relay, OEM: 12135194ACDelco
2001-2018 GMC Sierra 2500 HD ACDelco Multi Purpose Relay 12135194
41.45, Save 39%   NEW ITEM
OEM: 12135194, Item: 896212
  In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Roof Mount

GMC Sierra 2500 HD Multi Purpose Relay, OEM: SS624SMP
2001-2010 GMC Sierra 2500 HD SMP Multi Purpose Relay SS624
106.15, Save 39%   NEW ITEM
OEM: SS624, Item: 318582
  Only 1 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi Purpose Wire Connector, OEM: PT2189ACDelco
2007-2008 GMC Sierra 2500 HD ACDelco Multi Purpose Wire Connector PT2189
30.05, Save 39%   NEW ITEM
OEM: PT2189, Item: 901856
  Only 3 left In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi-Purpose Relay, OEM: RY282SMP
2001-2012 GMC Sierra 2500 HD SMP Multi-Purpose Relay RY282
14.55, Save 40%   NEW ITEM
OEM: RY282, Item: 317735
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi-Purpose Relay, OEM: RY232SMP
2001-2007 GMC Sierra 2500 HD SMP Multi-Purpose Relay RY232
7.95, Save 39%   NEW ITEM
OEM: RY232, Item: 317715
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi-Purpose Relay, OEM: RY604SMP
2001-2002, 2005-2012 GMC Sierra 2500 HD SMP Multi-Purpose Relay RY604
8.15, Save 40%   NEW ITEM
OEM: RY604, Item: 317835
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi-Purpose Relay, OEM: RY246SMP
2001 GMC Sierra 2500 HD SMP Multi-Purpose Relay RY246
16.75, Save 39%   NEW ITEM
OEM: RY246, Item: 317720
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi-Purpose Relay, OEM: RY601SMP
2001-2005, 2007-2012 GMC Sierra 2500 HD SMP Multi-Purpose Relay RY601
10.55, Save 40%   NEW ITEM
OEM: RY601, Item: 317832
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi-Purpose Relay, OEM: RY280SMP
2001-2012 GMC Sierra 2500 HD SMP Multi-Purpose Relay RY280
5.55, Save 39%   NEW ITEM
OEM: RY280, Item: 317734
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi-Purpose Relay, OEM: RY531SMP
2001-2012 GMC Sierra 2500 HD SMP Multi-Purpose Relay RY531
14.55, Save 39%   NEW ITEM
OEM: RY531, Item: 317821
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Multi-Purpose Relay, OEM: RY242SMP
2001-2002 GMC Sierra 2500 HD SMP Multi-Purpose Relay RY242
12.35, Save 40%   NEW ITEM
OEM: RY242, Item: 317719
  In Stock, Usually ships within 1 business day
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GMC Sierra 2500 HD Pulse Wiper Relay, OEM: D1780CACDelco
2001-2006, 2015-2018 GMC Sierra 2500 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 2500 HD Trailer Tow Relay, OEM: 20904439ACDelco
2007-2014 GMC Sierra 2500 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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