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Replacement and OEM Parts for GMC Sierra 3500 HD Junction Boxes
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GMC Sierra 3500 HD Junction Boxes

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  • OEM GMC Sierra 3500 HD Fuse & Relay Box Diagram - 23443944
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    OEM (Genuine) GMC Sierra 3500 HD Fuse & Relay Box

    PartNumber: 23443944
    OEM GMC Sierra 3500 HD Fuse & Relay Box - 23443944
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 7.8 x 6.4 x 6.5 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 22988417, 23176466
    • Part Description: GMC Sierra 3500 HD Fuse & Relay Box
    More Info
    $96.85 MSRP: $153.78
    You Save: $56.93 (38%)
  • OEM GMC Sierra 3500 HD Junction Block Diagram - 19210439
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    OEM (Genuine) GMC Sierra 3500 HD Junction Block

    PartNumber: 19210439
    OEM GMC Sierra 3500 HD Junction Block - 19210439
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.5 x 5.6 x 16.3 inches
    • Item Weight: 3.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25815388, 15910898
    • Part Description: GMC Sierra 3500 HD Junction Block
    More Info
    $274.17 MSRP: $435.31
    You Save: $161.14 (38%)
  • OEM GMC Sierra 3500 HD Fuse & Relay Box Diagram - 84594610
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    OEM (Genuine) GMC Sierra 3500 HD Fuse & Relay Box

    PartNumber: 84594610
    OEM GMC Sierra 3500 HD Fuse & Relay Box - 84594610
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Fitment Type: Direct Replacement
    • Replaced by: 86771157
    • Part Description: GMC Sierra 3500 HD Fuse & Relay Box
    More Info
    $153.02 MSRP: $242.90
    You Save: $89.88 (38%)
  • OEM GMC Sierra 3500 HD Fuse & Relay Box Diagram - 84594609
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    OEM (Genuine) GMC Sierra 3500 HD Fuse & Relay Box

    PartNumber: 84594609
    OEM GMC Sierra 3500 HD Fuse & Relay Box - 84594609
    Product Specifications
    • 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: GMC Sierra 3500 HD Fuse & Relay Box
    More Info
    $128.99 MSRP: $204.82
    You Save: $75.83 (38%)
  • OEM GMC Sierra 3500 HD Fuse & Relay Box Diagram - 23459420
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    OEM (Genuine) GMC Sierra 3500 HD Fuse & Relay Box

    PartNumber: 23459420
    OEM GMC Sierra 3500 HD Fuse & Relay Box - 23459420
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 7.9 x 6.4 x 6.5 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23443945, 23176467
    • Part Description: GMC Sierra 3500 HD Fuse & Relay Box
    More Info
    $96.88 MSRP: $153.82
    You Save: $56.94 (38%)
  • OEM GMC Sierra 3500 HD Junction Block Diagram - 23195441
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    OEM (Genuine) GMC Sierra 3500 HD Junction Block

    PartNumber: 23195441
    OEM GMC Sierra 3500 HD Junction Block - 23195441
    Product Specifications
    • 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: GMC Sierra 3500 HD Junction Block
    More Info
    $103.63 MSRP: $164.54
    You Save: $60.91 (38%)
  • OEM GMC Sierra 3500 HD Fuse & Relay Box Diagram - 23443946
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    OEM (Genuine) GMC Sierra 3500 HD Fuse & Relay Box

    PartNumber: 23443946
    OEM GMC Sierra 3500 HD Fuse & Relay Box - 23443946
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 7.7 x 6.3 x 6.5 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23176468, 22988419
    • Part Description: GMC Sierra 3500 HD Fuse & Relay Box
    More Info
    $90.15 MSRP: $143.14
    You Save: $52.99 (38%)
  • OEM GMC Sierra 3500 HD Fuse & Relay Box Diagram - 23459422
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    OEM (Genuine) GMC Sierra 3500 HD Fuse & Relay Box

    PartNumber: 23459422
    OEM GMC Sierra 3500 HD Fuse & Relay Box - 23459422
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 7.8 x 6.2 x 6.5 inches
    • Item Weight: 1.20 Pounds
    • Replaces: 23443947, 23176469, 22988420
    • Part Description: GMC Sierra 3500 HD Fuse & Relay Box
    More Info
    $87.05 MSRP: $138.23
    You Save: $51.18 (38%)
  • OEM GMC Sierra 3500 HD Fuse & Relay Box Diagram - 84582038
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    OEM (Genuine) GMC Sierra 3500 HD Fuse & Relay Box

    PartNumber: 84582038
    OEM GMC Sierra 3500 HD Fuse & Relay Box - 84582038
    Product Specifications
    • 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: GMC Sierra 3500 HD Fuse & Relay Box
    More Info
    $79.73 MSRP: $126.56
    You Save: $46.83 (38%)
  • OEM GMC Sierra 3500 HD Junction Block Diagram - 23355667
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    OEM (Genuine) GMC Sierra 3500 HD Junction Block

    PartNumber: 23355667
    OEM GMC Sierra 3500 HD Junction Block - 23355667
    Product Specifications
    • 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: GMC Sierra 3500 HD Junction Block
    More Info
    $40.99 MSRP: $65.08
    You Save: $24.09 (38%)
  • OEM GMC Sierra 3500 HD Junction Block Diagram - 22798213
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    OEM (Genuine) GMC Sierra 3500 HD Junction Block

    PartNumber: 22798213
    OEM GMC Sierra 3500 HD Junction Block - 22798213
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.6 x 5.7 x 15.7 inches
    • Item Weight: 4.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20904415
    • Part Description: GMC Sierra 3500 HD Junction Block
    More Info
    $349.15 MSRP: $554.35
    You Save: $205.20 (38%)
  • OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction Diagram - 22798216
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    OEM (Genuine) GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction

    PartNumber: 22798216
    OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction - 22798216
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.8 x 5.6 x 15.8 inches
    • Item Weight: 3.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20862103, 25941367
    • Part Description: GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction
    More Info
    $411.02 MSRP: $652.58
    You Save: $241.56 (38%)
  • OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction Diagram - 22798214
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    OEM (Genuine) GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction

    PartNumber: 22798214
    OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction - 22798214
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.6 x 5.9 x 16.1 inches
    • Item Weight: 4.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20978811, 20904414
    • Part Description: GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction
    More Info
    $342.64 MSRP: $544.01
    You Save: $201.37 (38%)
  • OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction Diagram - 84303175
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    OEM (Genuine) GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction

    PartNumber: 84303175
    OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction - 84303175
    Product Specifications
    • 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: GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction
    More Info
    $163.98 MSRP: $260.37
    You Save: $96.39 (38%)
  • OEM GMC Sierra 3500 HD Block Asm-Body Wiring Harness Junction Diagram - 20813086
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    OEM (Genuine) GMC Sierra 3500 HD Block Asm-Body Wiring Harness Junction

    PartNumber: 20813086
    OEM GMC Sierra 3500 HD Block Asm-Body Wiring Harness Junction - 20813086
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 8.3 x 8.1 x 6.2 inches
    • Item Weight: 3.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15780696
    • Part Description: GMC Sierra 3500 HD Block Asm-Body Wiring Harness Junction
    More Info
    $174.35 MSRP: $276.81
    You Save: $102.46 (38%)
  • OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction Diagram - 84303174
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    OEM (Genuine) GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction

    PartNumber: 84303174
    OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction - 84303174
    Product Specifications
    • 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: GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction
    More Info
    $214.57 MSRP: $340.68
    You Save: $126.11 (38%)
  • OEM GMC Sierra 3500 HD Fuse & Relay Box Diagram - 84738241
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    OEM (Genuine) GMC Sierra 3500 HD Fuse & Relay Box

    PartNumber: 84738241
    OEM GMC Sierra 3500 HD Fuse & Relay Box - 84738241
    Product Specifications
    • 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: GMC Sierra 3500 HD Fuse & Relay Box
    More Info
    $39.25 MSRP: $62.33
    You Save: $23.08 (38%)
  • OEM GMC Sierra 3500 HD Junction Block Diagram - 22745714
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    OEM (Genuine) GMC Sierra 3500 HD Junction Block

    PartNumber: 22745714
    OEM GMC Sierra 3500 HD Junction Block - 22745714
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 7.7 x 6.2 x 6.6 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20828607, 15200866, 25815392, 15948740
    • Part Description: GMC Sierra 3500 HD Junction Block
    More Info
  • OEM GMC Sierra 3500 HD Block Asm, Engine Wiring Harness Junction Diagram - 19210438
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    OEM (Genuine) GMC Sierra 3500 HD Block Asm, Engine Wiring Harness Junction

    PartNumber: 19210438
    OEM GMC Sierra 3500 HD Block Asm, Engine Wiring Harness Junction - 19210438
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.6 x 5.7 x 16.0 inches
    • Item Weight: 3.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25815387, 15910897
    • Part Description: GMC Sierra 3500 HD Block Asm, Engine Wiring Harness Junction
    More Info
  • OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction Diagram - 22798215
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    OEM (Genuine) GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction

    PartNumber: 22798215
    OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction - 22798215
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.7 x 5.7 x 15.8 inches
    • Item Weight: 3.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20978812, 25941370
    • Part Description: GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction
    More Info
  • OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction Diagram - 15139209
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    OEM (Genuine) GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction

    PartNumber: 15139209
    OEM GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction - 15139209
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.4 x 5.3 x 12.2 inches
    • Item Weight: 3.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Sierra 3500 HD Block Asm-Engine Wiring Harness Junction
    More Info

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