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Replacement and OEM Parts for GMC Relay Boxes
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GMC Relay Boxes

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Fuses & Fuse Box
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  • OEM GMC Junction Block Diagram - 20828609
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    OEM (Genuine) GMC Junction Block

    PartNumber: 20828609
    OEM GMC Junction Block - 20828609
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 7.7 x 6.6 x 6.2 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25815394, 25789103
    • Part Description: GMC Junction Block
    More Info
    $133.57 MSRP: $212.08
    You Save: $78.51 (38%)
  • OEM GMC Junction Block Diagram - 15177119
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    OEM (Genuine) GMC Junction Block

    PartNumber: 15177119
    OEM GMC 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 Junction Block
    More Info
    $444.29 MSRP: $705.40
    You Save: $261.11 (38%)
  • OEM GMC Fuse & Relay Box Diagram - 23436803
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 23436803
    OEM GMC Fuse & Relay Box - 23436803
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 11.3 x 11.2 x 6.1 inches
    • Item Weight: 4.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23436809, 23436806
    • Part Description: GMC Fuse & Relay Box
    More Info
    $379.23 MSRP: $686.40
    You Save: $307.17 (45%)
  • OEM GMC Fuse & Relay Box Diagram - 20972848
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 20972848
    OEM GMC Fuse & Relay Box - 20972848
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 13.3 x 11.9 x 9.4 inches
    • Item Weight: 4.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20972853, 20972850, 22940338, 20972851, 22940336
    • Part Description: GMC Fuse & Relay Box
    More Info
    $295.44 MSRP: $469.09
    You Save: $173.65 (38%)
  • OEM GMC Junction Block Diagram - 19210439
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    OEM (Genuine) GMC Junction Block

    PartNumber: 19210439
    OEM GMC 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 Junction Block
    More Info
    $302.14 MSRP: $479.71
    You Save: $177.57 (38%)
  • OEM GMC Junction Block Diagram - 22798218
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    OEM (Genuine) GMC Junction Block

    PartNumber: 22798218
    OEM GMC Junction Block - 22798218
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 15.7 x 9.7 x 5.8 inches
    • Item Weight: 3.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25941369
    • Part Description: GMC Junction Block
    More Info
    $234.42 MSRP: $372.20
    You Save: $137.78 (38%)
  • OEM GMC Fuse & Relay Box Diagram - 25918908
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 25918908
    OEM GMC Fuse & Relay Box - 25918908
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Item Dimensions: 13.5 x 10.8 x 5.3 inches
    • Item Weight: 4.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25909570, 20832838, 20832841, 25909567
    • Part Description: GMC Fuse & Relay Box
    More Info
    $243.30 MSRP: $386.29
    You Save: $142.99 (38%)
  • OEM GMC Fuse & Relay Box Diagram - 84594610
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 84594610
    OEM GMC Fuse & Relay Box - 84594610
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Fitment Type: Direct Replacement
    • Replaced by: 86771157
    • Part Description: GMC Fuse & Relay Box
    More Info
    $168.64 MSRP: $267.68
    You Save: $99.04 (37%)
  • OEM GMC Fuse & Relay Box Diagram - 84958055
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 84958055
    OEM GMC Fuse & Relay Box - 84958055
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Fitment Type: Direct Replacement
    • Replaced by: 86771158
    • Part Description: GMC Fuse & Relay Box
    More Info
    $147.54 MSRP: $234.21
    You Save: $86.67 (38%)
  • OEM GMC Junction Block Diagram - 23195441
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    OEM (Genuine) GMC Junction Block

    PartNumber: 23195441
    OEM GMC 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 Junction Block
    More Info
    $114.20 MSRP: $181.33
    You Save: $67.13 (38%)
  • OEM GMC Fuse & Relay Box Diagram - 84721427
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 84721427
    OEM GMC Fuse & Relay Box - 84721427
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Fitment Type: Direct Replacement
    • Part Description: GMC Fuse & Relay Box
    More Info
    $111.89 MSRP: $177.66
    You Save: $65.77 (38%)
  • OEM GMC Junction Block Diagram - 84114438
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    OEM (Genuine) GMC Junction Block

    PartNumber: 84114438
    OEM GMC Junction Block - 84114438
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 10.6 x 8.4 x 5.6 inches
    • Item Weight: 3.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23200666
    • Part Description: GMC Junction Block
    More Info
    $124.32 MSRP: $205.77
    You Save: $81.45 (40%)
  • OEM GMC Junction Block Diagram - 22831076
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    OEM (Genuine) GMC Junction Block

    PartNumber: 22831076
    OEM GMC Junction Block - 22831076
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 15.9 x 9.6 x 9.1 inches
    • Item Weight: 1.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Junction Block
    More Info
    $79.94 MSRP: $126.94
    You Save: $47.00 (38%)
  • OEM GMC Fuse & Relay Box Diagram - 84516217
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 84516217
    OEM GMC Fuse & Relay Box - 84516217
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Fitment Type: Direct Replacement
    • Replaced by: 84922669
    • Part Description: GMC Fuse & Relay Box
    More Info
    $78.22 MSRP: $124.21
    You Save: $45.99 (38%)
  • OEM GMC Fuse & Relay Box Diagram - 84929381
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 84929381
    OEM GMC Fuse & Relay Box - 84929381
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Fitment Type: Direct Replacement
    • Replaced by: 85545271
    • Part Description: GMC Fuse & Relay Box
    More Info
    $69.96 MSRP: $111.07
    You Save: $41.11 (38%)
  • OEM GMC Fuse & Relay Box Diagram - 84823330
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 84823330
    OEM GMC Fuse & Relay Box - 84823330
    Product Specifications
    • Other Names: Fuse & Relay Box
    • Fitment Type: Direct Replacement
    • Part Description: GMC Fuse & Relay Box
    More Info
    $66.62 MSRP: $105.77
    You Save: $39.15 (38%)
  • OEM GMC Fuse & Relay Box Diagram - 84089163
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 84089163
    OEM GMC Fuse & Relay Box - 84089163
    Product Specifications
    • Other Names: Fuse & Relay Box, Fuse Box, Relay Box
    • Item Dimensions: 16.1 x 9.5 x 5.6 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Fuse & Relay Box
    More Info
    $37.76 MSRP: $62.49
    You Save: $24.73 (40%)
  • OEM GMC Junction Block Diagram - 23355667
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    OEM (Genuine) GMC Junction Block

    PartNumber: 23355667
    OEM GMC 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 Junction Block
    More Info
    $45.16 MSRP: $71.71
    You Save: $26.55 (38%)
  • OEM GMC Junction Block Diagram - 22798213
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    OEM (Genuine) GMC Junction Block

    PartNumber: 22798213
    OEM GMC 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 Junction Block
    More Info
    $384.76 MSRP: $610.89
    You Save: $226.13 (38%)
  • OEM GMC Block Asm-Engine Wiring Harness Junction Diagram - 84114437
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    OEM (Genuine) GMC Block Asm-Engine Wiring Harness Junction

    PartNumber: 84114437
    OEM GMC Block Asm-Engine Wiring Harness Junction - 84114437
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 16.1 x 9.3 x 5.6 inches
    • Item Weight: 3.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 22773484, 23225905, 23275380, 84017672, 23418066
    • Part Description: GMC Block Asm-Engine Wiring Harness Junction
    More Info
    $383.96 MSRP: $609.60
    You Save: $225.64 (38%)
  • OEM GMC Block Asm, Engine Wiring Harness Junction Diagram - 19210438
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    OEM (Genuine) GMC Block Asm, Engine Wiring Harness Junction

    PartNumber: 19210438
    OEM GMC 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 Block Asm, Engine Wiring Harness Junction
    More Info
    $460.64 MSRP: $627.96
    You Save: $167.32 (27%)
  • OEM GMC Block Asm-Engine Wiring Harness Junction Diagram - 22798217
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    OEM (Genuine) GMC Block Asm-Engine Wiring Harness Junction

    PartNumber: 22798217
    OEM GMC Block Asm-Engine Wiring Harness Junction - 22798217
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.7 x 5.7 x 15.8 inches
    • Item Weight: 3.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25941368
    • Part Description: GMC Block Asm-Engine Wiring Harness Junction
    More Info
    $373.21 MSRP: $592.55
    You Save: $219.34 (38%)
  • OEM GMC Block Asm, Engine Wiring Harness Junction Diagram - 19210436
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    OEM (Genuine) GMC Block Asm, Engine Wiring Harness Junction

    PartNumber: 19210436
    OEM GMC Block Asm, Engine Wiring Harness Junction - 19210436
    Product Specifications
    • Other Names: Junction Block
    • Item Dimensions: 9.4 x 5.6 x 15.8 inches
    • Item Weight: 3.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15092625
    • Part Description: GMC Block Asm, Engine Wiring Harness Junction
    More Info
    $477.65 MSRP: $758.37
    You Save: $280.72 (38%)
  • OEM GMC Block Asm-Engine Wiring Harness Junction Diagram - 22798216
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    OEM (Genuine) GMC Block Asm-Engine Wiring Harness Junction

    PartNumber: 22798216
    OEM GMC 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 Block Asm-Engine Wiring Harness Junction
    More Info
    $452.94 MSRP: $719.14
    You Save: $266.20 (38%)
  • OEM GMC Block Asm-Engine Wiring Harness Junction Diagram - 22798214
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    OEM (Genuine) GMC Block Asm-Engine Wiring Harness Junction

    PartNumber: 22798214
    OEM GMC 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 Block Asm-Engine Wiring Harness Junction
    More Info
    $377.59 MSRP: $599.50
    You Save: $221.91 (38%)
  • OEM GMC Block Asm-Engine Wiring Harness Junction Diagram - 84303175
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    OEM (Genuine) GMC Block Asm-Engine Wiring Harness Junction

    PartNumber: 84303175
    OEM GMC 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 Block Asm-Engine Wiring Harness Junction
    More Info
    $180.71 MSRP: $286.93
    You Save: $106.22 (38%)
  • OEM GMC Block Asm-Body Wiring Harness Junction Diagram - 20813086
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    OEM (Genuine) GMC Block Asm-Body Wiring Harness Junction

    PartNumber: 20813086
    OEM GMC 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 Block Asm-Body Wiring Harness Junction
    More Info
    $192.13 MSRP: $305.04
    You Save: $112.91 (38%)
  • OEM GMC Block Asm-Fuse Diagram - 20828606
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    OEM (Genuine) GMC Block Asm-Fuse

    PartNumber: 20828606
    OEM GMC Block Asm-Fuse - 20828606
    Product Specifications
    • Other Names: Fuse Box, Junction Block
    • Item Dimensions: 7.8 x 6.3 x 6.1 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25815391
    • Part Description: GMC Block Asm-Fuse
    More Info
    $108.27 MSRP: $171.91
    You Save: $63.64 (38%)
  • OEM GMC Block Asm-Engine Wiring Harness Junction Diagram - 84303174
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    OEM (Genuine) GMC Block Asm-Engine Wiring Harness Junction

    PartNumber: 84303174
    OEM GMC 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 Block Asm-Engine Wiring Harness Junction
    More Info
    $236.46 MSRP: $375.43
    You Save: $138.97 (38%)
  • OEM GMC Fuse & Relay Box Diagram - 84738241
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    OEM (Genuine) GMC Fuse & Relay Box

    PartNumber: 84738241
    OEM GMC 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 Fuse & Relay Box
    More Info
    $43.25 MSRP: $68.68
    You Save: $25.43 (38%)
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