Contact Us Live Chat or 1-888-220-8330
Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
Replacement and OEM Parts for GMC Sierra 3500 Relay Boxes
Select your vehicle for the best product fit
  • Select Vehicle by Model
  • Select Vehicle by VIN
Select Make
Select Model
Select Year
or

GMC Sierra 3500 Relay Boxes

< Back to View All
Fuses & Fuse Box
  • Department
  • Prices

2 Products found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM (Genuine) GMC Sierra 3500 Junction Block

    PartNumber: 15177119
    OEM GMC Sierra 3500 Junction Block - 15177119
    Product Specifications
    • Item Dimensions: 9.3 x 5.5 x 11.9 inches
    • Item Weight: 3.30 Pounds
    • Replaced by: 15786043
    • Part Description: GMC Sierra 3500 Junction Block
    More Info
    $403.16 MSRP: $640.10
    You Save: $236.94 (38%)
  • OEM (Genuine) GMC Sierra 3500 Block, Engine Wiring Harness Junction

    PartNumber: 12193645
    OEM GMC Sierra 3500 Block, Engine Wiring Harness Junction - 12193645
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 12.2 x 9.9 x 5.4 inches
    • Item Weight: 3.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Sierra 3500 Block, Engine Wiring Harness Junction
    More Info

Browse GMC Sierra 3500 Relay Boxes by Years