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 ×
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Login/Register My Account Track Order Help Center Contact Us
Replacement and OEM Parts for 2021 Chevrolet Silverado 3500 HD Fuse Box

2021 Chevrolet Silverado 3500 HD Fuse Box

My Vehicle Change Vehicle
2021 Chevrolet Silverado 3500 HD
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Fuses & Fuse Box
  • Department
  • Prices

11 Products found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM 2021 Chevrolet Silverado 3500 HD Junction Block Diagram - 84646132
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Junction Block

    PartNumber: 84646132
    OEM 2021 Chevrolet Silverado 3500 HD Junction Block - 84646132
    Product Specifications
    • Notes: W/O Auxiliary Battery
    • Other Names: Junction Block
    • Item Dimensions: 15.8 x 9.6 x 5.6 inches
    • Item Weight: 1.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 84493554
    • Replaced by: 85015807
    • Part Description: 2021 Chevrolet Silverado 3500 HD Junction Block
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $70.89 MSRP: $112.56
    You Save: $41.67 (38%)
  • OEM 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box Diagram - 84594609
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box

    PartNumber: 84594609
    OEM 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box - 84594609
    Product Specifications
    • Notes: Engine Compartment, Main Fuse Block, 6.6 Liter Diesel
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 16.2 x 9.3 x 6.0 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 86771159
    • Part Description: 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L DIESEL
    $125.60 MSRP: $199.43
    You Save: $73.83 (38%)
  • OEM 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box Diagram - 84594610
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box

    PartNumber: 84594610
    OEM 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box - 84594610
    Product Specifications
    • Notes: Engine Compartment, Main Fuse Block, 6.6 Liter Gas
    • Other Names: Fuse & Relay Box
    • Fitment Type: Direct Replacement
    • Replaced by: 86771157
    • Part Description: 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L GAS
    $149.00 MSRP: $236.52
    You Save: $87.52 (38%)
  • OEM 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box Diagram - 84582038
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box

    PartNumber: 84582038
    OEM 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box - 84582038
    Product Specifications
    • Notes: Instrument Panel, Passenger Side
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 12.1 x 9.4 x 5.5 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $79.73 MSRP: $126.56
    You Save: $46.83 (38%)
  • OEM 2021 Chevrolet Silverado 3500 HD Junction Block Diagram - 84663447
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Junction Block

    PartNumber: 84663447
    OEM 2021 Chevrolet Silverado 3500 HD Junction Block - 84663447
    Product Specifications
    • Notes: W/Auxiliary Battery, W/O Dual Alternator, Aux Battery, 6.6 Liter Gas; W/Auxiliary Battery, W/Dual Alternator, Aux Battery, 6.6 Liter Gas
    • Other Names: Junction Block
    • Item Dimensions: 12.2 x 9.7 x 5.6 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Chevrolet Silverado 3500 HD Junction Block
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L GAS
    $103.58 MSRP: $164.49
    You Save: $60.91 (38%)
  • OEM 2021 Chevrolet Silverado 3500 HD Junction Block Diagram - 23355667
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Junction Block

    PartNumber: 23355667
    OEM 2021 Chevrolet Silverado 3500 HD Junction Block - 23355667
    Product Specifications
    • Notes: Instrument Panel, Driver Side
    • Other Names: Junction Block
    • Item Dimensions: 11.5 x 5.0 x 5.0 inches
    • Item Weight: 1.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 84596390
    • Part Description: 2021 Chevrolet Silverado 3500 HD Junction Block
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $39.90 MSRP: $63.36
    You Save: $23.46 (38%)
  • OEM 2021 Chevrolet Silverado 3500 HD Junction Block Diagram - 84732905
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Junction Block

    PartNumber: 84732905
    OEM 2021 Chevrolet Silverado 3500 HD Junction Block - 84732905
    Product Specifications
    • Notes: W/Auxiliary Battery, W/O Dual Alternator, Primary Batttery, 6.6 Liter Diesel; W/Auxiliary Battery, W/Dual Alternator, Primary Batttery, 6.6 Liter Diesel
    • Other Names: Junction Block
    • Fitment Type: Direct Replacement
    • Replaces: 84646135
    • Part Description: 2021 Chevrolet Silverado 3500 HD Junction Block
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L DIESEL
    $64.98 MSRP: $103.17
    You Save: $38.19 (38%)
  • OEM 2021 Chevrolet Silverado 3500 HD Junction Block Diagram - 84663446
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Junction Block

    PartNumber: 84663446
    OEM 2021 Chevrolet Silverado 3500 HD Junction Block - 84663446
    Product Specifications
    • Notes: W/Auxiliary Battery, W/O Dual Alternator, Aux Battery, 6.6 Liter Diesel; W/Auxiliary Battery, W/Dual Alternator, Aux Battery, 6.6 Liter Diesel
    • Other Names: Junction Block
    • Item Dimensions: 11.9 x 9.5 x 5.3 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Chevrolet Silverado 3500 HD Junction Block
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L DIESEL
    $51.50 MSRP: $85.25
    You Save: $33.75 (40%)
  • OEM 2021 Chevrolet Silverado 3500 HD Upper Cover Diagram - 84223919
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Upper Cover

    PartNumber: 84223919
    OEM 2021 Chevrolet Silverado 3500 HD Upper Cover - 84223919
    Product Specifications
    • Notes: Instrument Panel, Driver Side
    • Other Names: Cover, Upper Cover
    • Item Dimensions: 4.7 x 2.2 x 1.7 inches
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Chevrolet Silverado 3500 HD Upper Cover
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $6.28 MSRP: $9.95
    You Save: $3.67 (37%)
  • OEM 2021 Chevrolet Silverado 3500 HD BLOCK ASM-BAT DISTRIBUTION ENG COMPT FUSE Diagram - 84646134
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD BLOCK ASM-BAT DISTRIBUTION ENG COMPT FUSE

    PartNumber: 84646134
    OEM 2021 Chevrolet Silverado 3500 HD BLOCK ASM-BAT DISTRIBUTION ENG COMPT FUSE - 84646134
    Product Specifications
    • Notes: W/Auxiliary Battery, W/O Dual Alternator, Primary Batttery, 6.6 Liter Gas; W/Auxiliary Battery, W/Dual Alternator, Primary Batttery, 6.6 Liter Gas
    • Other Names: Junction Block
    • Item Dimensions: 16.3 x 9.4 x 5.6 inches
    • Item Weight: 1.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 84493556
    • Part Description: 2021 Chevrolet Silverado 3500 HD BLOCK ASM-BAT DISTRIBUTION ENG COMPT FUSE
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L GAS
    $76.78 MSRP: $121.91
    You Save: $45.13 (38%)
  • OEM 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box Diagram - 84738241
    View Related Parts

    OEM (Genuine) 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box

    PartNumber: 84738241
    OEM 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box - 84738241
    Product Specifications
    • Notes: Engine Compartment, Accessory Fuse Block
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 5.8 x 5.5 x 3.2 inches
    • Item Weight: 1.00 Pounds
    • Replaces: 84385176
    • Part Description: 2021 Chevrolet Silverado 3500 HD Fuse & Relay Box
    More Info
    Vehicle Fitment
    • 2021 Chevrolet Silverado 3500 HD | High Country, LT, LTZ, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $38.22 MSRP: $60.70
    You Save: $22.48 (38%)