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Replacement and OEM Parts for 2018 GMC Sierra 3500 HD Relay Boxes

2018 GMC Sierra 3500 HD Relay Boxes

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2018 GMC Sierra 3500 HD
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Fuses & Fuse Box
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  • OEM 2018 GMC Sierra 3500 HD Junction Block Diagram - 23195441
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Junction Block

    PartNumber: 23195441
    OEM 2018 GMC Sierra 3500 HD Junction Block - 23195441
    Product Specifications
    • Notes: Instrument Panel
    • Other Names: Junction Block
    • Item Dimensions: 16.2 x 9.6 x 9.3 inches
    • Item Weight: 1.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 22773749
    • Part Description: 2018 GMC Sierra 3500 HD Junction Block
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $100.90 MSRP: $160.21
    You Save: $59.31 (38%)
  • OEM 2018 GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction Diagram - 84303175
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction

    PartNumber: 84303175
    OEM 2018 GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction - 84303175
    Product Specifications
    • Notes: Engine Compartment, 6.0 Liter
    • Other Names: Fuse & Relay Box, Junction Block
    • Item Dimensions: 9.7 x 5.7 x 15.8 inches
    • Item Weight: 2.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23254025, 23285565, 84303177, 84008527, 84071500, 84303178, 84075778, 84008524, 84075768, 23285569, 23143470, 23285567, 23285572, 84303179, 84075777, 84008525, 84075776
    • Part Description: 2018 GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
  • OEM 2018 GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction Diagram - 84303174
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction

    PartNumber: 84303174
    OEM 2018 GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction - 84303174
    Product Specifications
    • Notes: Engine Compartment, 6.6 Liter Diesel
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 16.3 x 9.5 x 5.6 inches
    • Item Weight: 2.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23254027, 23143474, 23285571, 84017812, 84017811, 84303173, 84075775, 23285564, 84075769, 84075767, 84075774
    • Part Description: 2018 GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL