OEM GMC Relay Block

Relay Fuse Box

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82 Relay Blocks found

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GMC Fuse & Relay Box, Driver Side Part Number: 23459420
$92.02 MSRP: $189.37
You Save: $97.35 (52%)
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block; Junction Boxes; Fuse Box; Block, Wiring Junction
- Position: Driver Side
- Replaces: 23176467, 23443945
Fits the following GMC Models:
- Sierra 1500 | 2015-2018 | Base, Denali, SLE, SLT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
- Sierra 1500 Limited | 2019 | Base, SLE | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Sierra 2500 HD | 2015-2019 | 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
- Sierra 3500 HD | 2015-2019 | 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
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GMC Fuse & Relay Box, Passenger Side Part Number: 23443946
$112.00 MSRP: $176.23
You Save: $64.23 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block; Junction Boxes; Fuse Box; Block, Wiring Junction
- Position: Passenger Side
- Replaces: 23176468, 22988419
Fits the following GMC Models:
- Sierra 1500 | 2014-2018 | Base, Denali, SLE, SLT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
- Sierra 1500 Limited | 2019 | Base, SLE | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Sierra 2500 HD | 2015-2019 | 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
- Sierra 3500 HD | 2015-2019 | 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
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GMC Fuse & Relay Box Part Number: 20832840
$144.07 MSRP: $226.67
You Save: $82.60 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block Assembly-Accessory Wiring Junction; Junction Boxes; Fuse Box; Block, Main Wiring Junction And Fuse Block
Fits the following GMC Models:
- Acadia | 2010 | SL, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Junction Block Part Number: 84303175
$203.74 MSRP: $320.57
You Save: $116.83 (37%)
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Product Specifications
- Other Name: Block; Junction Boxes; Relay Boxes; Fuse Box; Fuse & Relay Box; Block, Wiring Junction
- Replaces: 23254025, 23143470, 23285565, 23285572, 23285574, 23285569, 84008527, 84075777, 84071500, 84075778, 84008525, 84303178, 84303179, 23285567, 84303177, 84075768, 84008524, 84075776
Fits the following GMC Models:
- Sierra 1500 | 2017-2018 | Base, Denali, SLE, SLT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
- Sierra 1500 Limited | 2019 | Base, SLE | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Sierra 2500 HD | 2017-2019 | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Sierra 3500 HD | 2017-2019 | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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GMC Fuse & Relay Box Part Number: 25856252
$300.49 MSRP: $472.80
You Save: $172.31 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block Assembly-Accessory Wiring Junction; Junction Boxes; Fuse Box
- Replaces: 25784723, 25856251, 25784726, 25814801
Fits the following GMC Models:
- Acadia | 2007-2008 | SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Fuse & Relay Box Part Number: 87832673
$91.44 MSRP: $188.15
You Save: $96.71 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Block; Block, Wiring Junction
Fits the following GMC Models:
- Sierra 1500 | 2024-2025 | AT4, AT4X, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Fuse & Relay Box Part Number: 84721425
$94.77 MSRP: $195.03
You Save: $100.26 (52%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block Assembly-Body Wiring Harness Junction; Junction Boxes; Fuse Box; Block, Body Wiring
Fits the following GMC Models:
- Acadia | 2018-2020 | AT4, Denali, SL, SLE, SLT | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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GMC Fuse & Relay Box Part Number: 23436803
$427.54 MSRP: $766.88
You Save: $339.34 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block; Junction Boxes; Relay Boxes; Fuse Box; Block, Wiring Junction
- Replaces: 23436809, 23436806
Fits the following GMC Models:
- Acadia | 2015-2016 | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
- Acadia Limited | 2017 | Base | 6 Cyl 3.6 L GAS
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GMC Fuse Box Part Number: 84089163
$37.95 MSRP: $62.49
You Save: $24.54 (40%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block; Junction Boxes; Relay Boxes; Relay Box; Fuse & Relay Box
Fits the following GMC Models:
- Terrain | 2018-2019 | Denali, SL, SLE, SLT | 4 Cyl 1.5 L GAS, 4 Cyl 1.6 L DIESEL, 4 Cyl 2.0 L GAS
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GMC Block Assembly-Battery Distribution Engine Compartment Fuse Part Number: 26465855
$36.40 MSRP: $57.01
You Save: $20.61 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: BLOCK ASM-BAT DISTRIBUTION ENG COMPT FUSE
Fits the following GMC Models:
- Terrain | 2025 | Elevation | 4 Cyl 1.5 L GAS
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GMC Fuse Box Part Number: 84254447
$47.94 MSRP: $75.06
You Save: $27.12 (37%)
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block; Junction Boxes; Fuse & Relay Box
Fits the following GMC Models:
- Terrain | 2020-2024 | AT4, Denali, SL, SLE, SLT | 4 Cyl 1.5 L GAS, 4 Cyl 2.0 L GAS
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GMC Fuse & Relay Box Part Number: 84738241
$48.99 MSRP: $76.74
You Save: $27.75 (37%)
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Product Specifications
- Other Name: Block Assembly-Accessory Wiring Junction; Junction Boxes; Relay Boxes; Fuse Box; Block, Wiring Junction
- Replaces: 84385176
Fits the following GMC Models:
- Sierra 2500 HD | 2020-2025 | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Sierra 3500 HD | 2020-2025 | AT4, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Fuse & Relay Box Bracket Part Number: 84089162
$54.12 MSRP: $84.76
You Save: $30.64 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cover, Wiring Junction; Cover, Main Wiring Junction And Fuse Block
Fits the following GMC Models:
- Terrain | 2018-2024 | AT4, Denali, SL, SLE, SLT | 4 Cyl 1.5 L GAS, 4 Cyl 1.6 L DIESEL, 4 Cyl 2.0 L GAS
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GMC Fuse & Relay Box Part Number: 23355673
$64.92 MSRP: $101.66
You Save: $36.74 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block; Junction Boxes; Fuse Box; Block, Wiring Junction
Fits the following GMC Models:
- Sierra 1500 | 2019-2025 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Sierra 1500 Limited | 2022 | AT4, Denali, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Fuse & Relay Box Part Number: 84823330
$69.23 MSRP: $108.42
You Save: $39.19 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block; Junction Boxes; Relay Boxes; Fuse Box; Block, Wiring Junction
Fits the following GMC Models:
- Yukon | 2021-2024 | AT4, Denali, Denali Ultimate, SLE, SLT | 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Yukon XL | 2021-2024 | AT4, Denali, Denali Ultimate, SLE, SLT | 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Fuse & Relay Box Part Number: 87829565
$72.44 MSRP: $113.44
You Save: $41.00 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block; Block, Wiring Junction
- Replaced by: 85777913
Fits the following GMC Models:
- Sierra 2500 HD | 2024-2025 | AT4, AT4X, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Sierra 3500 HD | 2024-2025 | AT4, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Fuse & Relay Box Part Number: 85545271
$72.69 MSRP: $113.84
You Save: $41.15 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block; Block, Wiring Junction
- Replaces: 84929381
Fits the following GMC Models:
- Yukon | 2021-2024 | AT4, Denali, Denali Ultimate, SLE, SLT | 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Yukon XL | 2021-2024 | AT4, Denali, Denali Ultimate, SLE, SLT | 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Fuse & Relay Box Part Number: 87832675
$76.56 MSRP: $119.91
You Save: $43.35 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block; Block, Wiring Junction
- Replaced by: 85777914
Fits the following GMC Models:
- Sierra 1500 | 2023-2025 | AT4, AT4X, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Fuse & Relay Box, Driver Side Part Number: 22988418
$76.96 MSRP: $120.54
You Save: $43.58 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block Assembly-Fuse; Junction Boxes; Fuse Box; Block, Wiring Junction
- Position: Driver Side
Fits the following GMC Models:
- Sierra 1500 | 2014 | Base, Denali, SLE, SLT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 6.2 L GAS
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GMC Block, Wiring Junction Part Number: 84075773
$376.36 MSRP: $592.07
You Save: $215.71 (37%)
Product Specifications
- Other Name: Block
- Replaces: 23143473, 23143469, 23387800, 23285566, 23143471, 23387798, 23285562, 84075770, 84017810, 23387797, 84075771, 23285563
Fits the following GMC Models:
- Sierra 1500 | 2014-2016 | Base, Denali, SLE, SLT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
- Sierra 2500 HD | 2015-2016 | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Sierra 3500 HD | 2015-2016 | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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GMC Relay Block

Choose OEM Relay Block, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with GMC's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM GMC Relay Block. You can shop at highly competitive prices and protect your budget. All our genuine GMC parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.