Car PartsGMC PartsGMC Sierra 2500 HD PartsGMC Sierra 2500 HD Relay

GMC Sierra 2500 HD Relay

Keeping your Sierra 2500 HD in top shape is your top priority.

When your GMC Sierra 2500 HD was born, it was destined for a driver who values longevity in their automobile. GMC vehicle owners have come to expect a certain level of dependability when driving their Sierra 2500 HD around town. Anyone who operates a GMC knows that when it comes to maintaining their car, truck, or SUV only the highest quality replacement parts will do. Obviously, you didn't buy your Sierra 2500 HD unless you understood you would be getting horsepower and rugged design both impeccably combined into one automobile.

The function and purpose of Relay.

A relay is simply a switch that can be used electrically. Electromechanical relays are the most prevalent types on the market. They do their job by activating electromagnets that pull the entire set of contacts to open or close circuits. Relays also enable you to perform your GMC Sierra 2500 HD logical car functions and inputs. If your GMC Sierra 2500 HD refuses start when you use the ignition switch, and if the engine light can't switch "ON" and "OFF", it indicates that the main relay is not working properly. You can repair it, or buy a new one if you'd like a faster solution.

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GMC Sierra 2500 HD Engine Cooling Fan Motor Relay, OEM: 15-81106/1581106
ACDelco Engine Cooling Fan Motor Relay 15-81106
3.95, Save 40%   NEW ITEM
OEM: 15-81106, Item: 886005
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD
GMC Sierra 2500 HD, SLE
GMC Sierra 2500 HD, SLT
GMC Sierra 2500 HD, WT
ACDelco Engine Cooling Fan Motor Relay 13503102
5.15, Save 40%   NEW ITEM
OEM: 13503102, Item: 1423186
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD
GMC Sierra 2500 HD, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD, SLE
GMC Sierra 2500 HD, SLT
GMC Sierra 2500 HD, WT
GMC Sierra 2500 HD Instrument Panel Wiring Harness Relay, OEM: D1703A
ACDelco Instrument Panel Wiring Harness Relay D1703A
5.55, Save 40%   NEW ITEM
OEM: D1703A, Item: 899736
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD
GMC Sierra 2500 HD Parking Light Relay, OEM: D1777C
ACDelco Parking Light Relay D1777C
6.85, Save 39%   NEW ITEM
OEM: D1777C, Item: 695237
7 In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD
GMC Sierra 2500 HD, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD, SLE
GMC Sierra 2500 HD, SLE, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, SLE, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD, SLT
GMC Sierra 2500 HD, SLT, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, SLT, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD, WT
GMC Sierra 2500 HD, WT, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, WT, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD A/C Compressor Control Relay, OEM: D1741C
ACDelco A/C Compressor Control Relay D1741C
7.45, Save 39%   NEW ITEM
OEM: D1741C, Item: 899739
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD
GMC Sierra 2500 HD, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD, 8.1L 8127CC 496Cu. In. V8
GMC Sierra 2500 HD Engine Cooling Fan Motor Relay, OEM: D1786C
ACDelco Engine Cooling Fan Motor Relay D1786C
8.95, Save 39%   POPULAR
OEM: D1786C, Item: 899747
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD
GMC Sierra 2500 HD, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD, 8.1L 8127CC 496Cu. In. V8
GMC Sierra 2500 HD, SLE
GMC Sierra 2500 HD, SLE, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, SLE, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD, SLT
GMC Sierra 2500 HD, SLT, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, SLT, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD, WT
GMC Sierra 2500 HD, WT, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, WT, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD Pulse Wiper Relay, OEM: D1780C
ACDelco Pulse Wiper Relay D1780C
9.25, Save 40%   NEW ITEM
OEM: D1780C, Item: 899746
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD
ACDelco Electronic Brake Control Relay 19118886
26.25, Save 39%   NEW ITEM
OEM: 19118886, Item: 1215746
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD
GMC Sierra 2500 HD, 6.0L 5967CC 364Cu. In. V8
GMC Sierra 2500 HD, 6.6L 6599CC 403Cu. In. V8
GMC Sierra 2500 HD, 8.1L 8127CC 496Cu. In. V8
GMC Sierra 2500 HD, SLE
GMC Sierra 2500 HD, SLT
GMC Sierra 2500 HD, WT
GMC Sierra 2500 HD HVAC Blower Motor Connector, OEM: PT731
ACDelco HVAC Blower Motor Connector PT731
28.65, Save 39%   NEW ITEM
OEM: PT731, Item: 901307
7 In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD
GMC Sierra 2500 HD, SLE
GMC Sierra 2500 HD, SLT
GMC Sierra 2500 HD, WT
GMC Sierra 2500 HD Engine Cooling Fan Motor Relay, OEM: 15016745
ACDelco Engine Cooling Fan Motor Relay 15016745
29.95, Save 39%   NEW ITEM
OEM: 15016745, Item: 896808
10 or More In Stock, Usually ships within 1 business day

GMC Sierra 2500 HD, 6.6L 6599CC 403Cu. In. V8