34 products about 2020 GMC Sierra 2500 HD Light Relays, Switches & Control Modules foundVEHICLE SPECIFIC Product Specifications Item Dimensions: 4.4 x 2.4 x 1.9 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Replaces: 13583369 Part Description: 2020 GMC Sierra 2500 HD Adjuster Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $38.31 MSRP: $72.30
You Save: $33.99 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Item Dimensions: 4.4 x 2.4 x 1.9 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Replaces: 13583369 Part Description: 2020 GMC Sierra 2500 HD Adjuster Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $38.31 MSRP: $72.30
You Save: $33.99 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: W/Passive Entry Other Names: Control Module, Module Item Dimensions: 9.0 x 8.4 x 2.2 inches Item Weight: 0.60 Pounds Fitment Type: Direct Replacement Replaced by: 13558725 Part Description: 2020 GMC Sierra 2500 HD Module More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $100.04 MSRP: $188.78
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Location: Passenger Side Other Names: Control Module, Object Sensor, Sensor Item Dimensions: 7.9 x 4.2 x 2.2 inches Item Weight: 0.50 Pounds Fitment Type: Direct Replacement Replaces: 84123075, 84467896 Part Description: 2020 GMC Sierra 2500 HD Object Sensor More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $129.05 MSRP: $194.71
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Module Fitment Type: Direct Replacement Replaced by: 13547618 Part Description: 2020 GMC Sierra 2500 HD Module More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Denali, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $84.17 MSRP: $126.99
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Accessory Power Control Other Names: Module Item Dimensions: 6.1 x 4.2 x 11.1 inches Item Weight: 2.20 Pounds Fitment Type: Direct Replacement Replaces: 84361189 Part Description: 2020 GMC Sierra 2500 HD Module More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $109.90 MSRP: $207.38
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Cruise Switch, Engagement Switch, Switch Fitment Type: Direct Replacement Replaced by: 13553607 Part Description: 2020 GMC Sierra 2500 HD Engagement Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $66.09 MSRP: $99.71
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Instrument Panel, Driver Side, Body Control; Silverado, Sierra 2500 Hd Other Names: Body Control Module, Module Item Dimensions: 11.0 x 7.5 x 3.3 inches Item Weight: 1.00 Pounds Fitment Type: Direct Replacement Replaces: 13520409 Part Description: 2020 GMC Sierra 2500 HD Module More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $75.15 MSRP: $141.82
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Silverado, Sierra 2500 Hd; W/Keyless Engine Start Other Names: Antitheft Module, Control Module, Controller Item Dimensions: 0.3 x 2.4 x 2.0 inches Item Weight: 3.20 Pounds Fitment Type: Direct Replacement Part Description: 2020 GMC Sierra 2500 HD Antitheft Module More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $88.87 MSRP: $167.72
You Save: $78.85 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: W/Leather, W/O Heated; W/Leather, W/Heated, W/O At4 Or Denali; W/Leather, W/Heated, W/At4; W/Leather, W/Heated, W/Denali Location: Driver Side Other Names: Audio Switch, Radio Switch, Switch Fitment Type: Direct Replacement Replaces: 13528614 Part Description: 2020 GMC Sierra 2500 HD Radio Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $22.90 MSRP: $43.22
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: W/Leather, W/O Heated; W/Leather, W/Heated, W/O At4 Or Denali; W/Leather, W/Heated, W/At4; W/Leather, W/Heated, W/Denali Other Names: Audio Switch, Radio Switch, Signal Switch Fitment Type: Direct Replacement Replaced by: 13553602 Part Description: 2020 GMC Sierra 2500 HD Radio Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $43.15 MSRP: $81.44
You Save: $38.29 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Cruise Switch, Engagement Switch, Switch Fitment Type: Direct Replacement Replaced by: 13553606 Part Description: 2020 GMC Sierra 2500 HD Engagement Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $38.55 MSRP: $60.63
You Save: $22.08 (37%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: W/Leather, W/O Heated; W/Leather, W/Heated, W/O At4 Or Denali; W/Leather, W/Heated, W/At4; W/Leather, W/Heated, W/Denali Location: Passenger Side Other Names: Audio Switch, Radio Switch, Switch Fitment Type: Direct Replacement Replaces: 13528615 Part Description: 2020 GMC Sierra 2500 HD SWITCH ASM-RDO VOL More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $25.40 MSRP: $43.22
You Save: $17.82 (42%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Headlamp Switch Item Dimensions: 6.6 x 4.3 x 4.4 inches Item Weight: 2.60 Pounds Fitment Type: Direct Replacement Replaced by: 86530685 Part Description: 2020 GMC Sierra 2500 HD Headlamp Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $36.58 MSRP: $57.54
You Save: $20.96 (37%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 2024, Pro, W/O Perimeter Lighting, W/Fog Lamps Other Names: Headlamp Switch Item Dimensions: 6.8 x 4.5 x 4.4 inches Item Weight: 2.70 Pounds Fitment Type: Direct Replacement Replaces: 84469523 Part Description: 2020 GMC Sierra 2500 HD Headlamp Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $37.54 MSRP: $56.90
You Save: $19.36 (35%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Headlamp Switch Item Dimensions: 6.6 x 4.3 x 4.5 inches Item Weight: 2.80 Pounds Fitment Type: Direct Replacement Replaces: 84469519 Part Description: 2020 GMC Sierra 2500 HD Headlamp Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $36.33 MSRP: $55.07
You Save: $18.74 (35%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Headlamp Switch Item Dimensions: 6.7 x 4.5 x 4.4 inches Item Weight: 2.90 Pounds Fitment Type: Direct Replacement Part Description: 2020 GMC Sierra 2500 HD Headlamp Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $33.14 MSRP: $50.23
You Save: $17.09 (35%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: W/O Keyless Start; Upper Trim, 2020-23 Other Names: Antitheft Module, Control Module, Controller Item Dimensions: 0.1 x 2.6 x 2.1 inches Item Weight: 3.10 Pounds Fitment Type: Direct Replacement Part Description: 2020 GMC Sierra 2500 HD Antitheft Module More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $29.19 MSRP: $55.12
You Save: $25.93 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Multifunction Switch, Turn Signal Switch Item Dimensions: 9.3 x 3.8 x 3.4 inches Item Weight: 0.50 Pounds Replaced by: 84924354 Part Description: 2020 GMC Sierra 2500 HD Multifunction Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $31.13 MSRP: $46.98
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 2024, Pro, Center Stack Accessory Switches, W/O Ez Lift Other Names: Hazard Switch, Stab Control Switch, Switch Item Dimensions: 3.5 x 2.6 x 1.2 inches Fitment Type: Direct Replacement Replaced by: 86827740 Part Description: 2020 GMC Sierra 2500 HD Stab Control Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | Base | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $29.04 MSRP: $43.82
You Save: $14.78 (34%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: W/O Leather, W/O Pre-Crash; Silverado, Sierra 2500 Hd; Standard Wrap Wheel Other Names: Cruise Switch, Engagement Switch, Switch Replaces: 13528609, 13540144 Replaced by: 13553609 Part Description: 2020 GMC Sierra 2500 HD Engagement Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $64.20 MSRP: $96.84
You Save: $32.64 (34%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Silverado, Sierra 2500 Hd; W/Near Obstacle Detect Other Names: Control Module, Module Item Dimensions: 10.5 x 5.4 x 4.2 inches Item Weight: 0.60 Pounds Fitment Type: Direct Replacement Replaces: 84448656 Part Description: 2020 GMC Sierra 2500 HD Module More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $13.10 MSRP: $23.80
You Save: $10.70 (45%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Hazard Switch, Stab Control Switch, Switch Item Dimensions: 3.5 x 2.6 x 1.2 inches Fitment Type: Direct Replacement Replaced by: 86827741 Part Description: 2020 GMC Sierra 2500 HD Stab Control Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $30.84 MSRP: $46.53
You Save: $15.69 (34%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 2024, Pro, W/O Perimeter Lighting, W/O Fog Lamps Other Names: Headlamp Switch Item Dimensions: 6.7 x 4.4 x 4.4 inches Item Weight: 2.70 Pounds Fitment Type: Direct Replacement Part Description: 2020 GMC Sierra 2500 HD Headlamp Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $38.22 MSRP: $63.29
You Save: $25.07 (40%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Hazard Switch, Stab Control Switch, Switch Fitment Type: Direct Replacement Replaced by: 86591015 Part Description: 2020 GMC Sierra 2500 HD Stab Control Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $31.67 MSRP: $47.79
You Save: $16.12 (34%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 2024, Pro, W/Perimeter Lighting, W/Fog Lamps Other Names: Headlamp Switch Item Dimensions: 6.8 x 4.3 x 4.3 inches Item Weight: 2.70 Pounds Fitment Type: Direct Replacement Replaced by: 86530686 Part Description: 2020 GMC Sierra 2500 HD Headlamp Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $37.77 MSRP: $59.41
You Save: $21.64 (37%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Headlamp Switch Item Dimensions: 6.8 x 4.5 x 4.5 inches Item Weight: 2.70 Pounds Fitment Type: Direct Replacement Replaced by: 86530682 Part Description: 2020 GMC Sierra 2500 HD Headlamp Switch More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $35.09 MSRP: $55.19
You Save: $20.10 (37%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Parking Assist; Silverado, Sierra 2500 Hd; W/O Near Obstacle Detect Other Names: Control Module, Module Item Dimensions: 6.8 x 6.6 x 6.4 inches Item Weight: 0.60 Pounds Fitment Type: Direct Replacement Part Description: 2020 GMC Sierra 2500 HD Module More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $12.95 MSRP: $23.42
You Save: $10.47 (45%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Engine Compartment, Main Fuse Block, Lamp Low Beam Item Dimensions: 3.8 x 2.2 x 0.7 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Replaces: 12193606, 19115080, 15328866, 12135034, 15393412, 12088567, 12135170, 19116057 Part Description: 2020 GMC Sierra 2500 HD AC Relay More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS, 8 Cyl 8.1 L GAS $9.55 MSRP: $20.04
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Control Module, Release Switch, Switch Fitment Type: Direct Replacement Replaced by: 85734717 Part Description: 2020 GMC Sierra 2500 HD SWITCH ASM-L/GATE EXTR REL *PAINT TO MAT More Info Vehicle Fitment 2020 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $4.71 MSRP: $7.00
You Save: $2.29 (33%)
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