How to replace the Fuse Box in the Body Wiring Harness Junction Block on GMC Sierra 1500?

The first step to replace the body wiring harness junction block requires uninstalling its retaining nut followed by removing the cover through tab pressing. The harness must be detached from the junction block's front side while pressing on its tabs will free it from the bracket. Begin by taking out all retaining bolts at the back of the device before using a screwdriver to split up the wire harness block from the junction block. The wire harness block needs to be installed onto the junction block followed by tightening its retaining bolts to 6 N.m (53 lb in) as per the Fastener Notice instructions. Safely install the junction block to its bracket while pushing the top part to ensure proper seating followed by harness attachment at the junction block front side. Finish the installation by putting in the cover until it snaps into position and tighten the retaining nut by hand until it reaches its seat.

How to replace the Fuse Box in the Body Wiring Harness Junction Block on GMC Yukon?

The replacement process starts by unfastening the cover retaining nut before slotting the tabs to extract the cover. Press to release the tabs which allows removal of the junction block from its bracket after detaching the harness from the front side of the junction block. The first step after removing the junction block is accessing the rear of the block to remove retaining bolts then using a screwdriver to separate the wire harness block from the junction block. The wire harness block needs installation onto the junction block with retaining bolts tightened to 6 N.m (53 lb in) following Fastener Notice in Service Precautions. Install the junction block to the bracket bracket until it clicks by pushing on its top part and activate the harness through the front of the junction block. Proceed with installing the cover which will snap into position before you hand-tighten the retaining nut until it rests properly.

OEM GMC Fuse Box

Fuse Holder Box

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129 Fuse Boxes found

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GMC Fuse & Relay Box Part Number: 25856252
$293.17 MSRP: $461.27
You Save: $168.10 (37%)
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Product Specifications
- Other Name: Block Assembly-Accessory Wiring Junction; Junction Boxes; Fuse Box; Block, Main Wiring Junction And Fuse Block; Block, Wiring Junction
- Replaces: 25784723, 25784726, 25814801, 25856251
Fits the following GMC Models:
- Acadia | 2007-2008 | SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Fuse Box Part Number: 20848337
$534.32 MSRP: $962.74
You Save: $428.42 (45%)
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Product Specifications
- Other Name: Block; Junction Boxes; Block, Main Wiring Junction And Fuse Block
- Replaces: 20812411
Fits the following GMC Models:
- Terrain | 2010 | SLE, SLT | 4 Cyl 2.4 L GAS
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GMC Fuse Box Part Number: 84080469
$312.89 MSRP: $561.24
You Save: $248.35 (45%)
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Product Specifications
- Other Name: Block; Junction Boxes; Block, Main Wiring Junction And Fuse Block
- Replaces: 23404555
Fits the following GMC Models:
- Terrain | 2017 | Denali, SLE, SLT | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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GMC Junction Block Part Number: 12146281
$32.26 MSRP: $57.60
You Save: $25.34 (44%)
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Product Specifications
- Other Name: Block, Wiring Junction; Fuse Box
Fits the following GMC Models:
- Yukon | 1995-2000 | Base, Denali, SL, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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GMC Fuse & Relay Box Part Number: 84155665
$187.30 MSRP: $294.69
You Save: $107.39 (37%)
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Product Specifications
- Other Name: Block; Junction Boxes; Fuse Box; Block, Main Wiring Junction And Fuse Block
Fits the following GMC Models:
- Acadia | 2017-2019 | Denali, SL, SLE, SLT | 4 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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GMC Junction Block Part Number: 84922666
$84.07 MSRP: $131.68
You Save: $47.61 (37%)
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Product Specifications
- Other Name: Block Assembly-Battery Distribution Engine Compartment Fuse; Junction Boxes; Relay Boxes; Fuse Box; Fuse & Relay Box; Block, Main Wiring Junction And Fuse Block
- Replaced by: 85020355
- Replaces: 84034566, 84082209, 84215663, 84516214
Fits the following GMC Models:
- Acadia | 2022-2023, 2017-2018 | AT4, Denali, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Fuse & Relay Box Part Number: 25918908
$268.08 MSRP: $421.79
You Save: $153.71 (37%)
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Product Specifications
- Other Name: Block Assembly-Accessory Wiring Junction; Junction Boxes; Relay Boxes; Fuse Box; Block, Main Wiring Junction And Fuse Block; Block, Wiring Junction
- Replaces: 20832838, 25909570, 20832841, 25909567
Fits the following GMC Models:
- Acadia | 2009-2010 | SL, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Engine Compartment Fuse Block Part Number: 84460794
$92.08 MSRP: $144.21
You Save: $52.13 (37%)
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Product Specifications
- Other Name: Block Assembly Bat Distribution Eng Compt Fuse; Block, Wiring Junction
- Replaces: 84095550
Fits the following GMC Models:
- 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 Junction Block Part Number: 85598799
$81.11 MSRP: $144.84
You Save: $63.73 (44%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Block, Main Wiring Junction And Fuse Block
- Replaced by: 85050299
Fits the following GMC Models:
- Canyon | 2023 | AT4, AT4X, Denali, Elevation | 4 Cyl 2.7 L GAS
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GMC Fuse Box Part Number: 22929762
$357.12 MSRP: $640.58
You Save: $283.46 (45%)
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Product Specifications
- Other Name: Block; Junction Boxes; Block, Main Wiring Junction And Fuse Block
Fits the following GMC Models:
- Terrain | 2013-2016 | Denali, SL, SLE, SLT | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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GMC Fuse & Relay Box Part Number: 23436803
$417.11 MSRP: $748.18
You Save: $331.07 (45%)
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Product Specifications
- Other Name: Block; Junction Boxes; Relay Boxes; Fuse Box; Block, Wiring Junction
- Replaces: 23436806, 23436809
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: 22929761
$342.31 MSRP: $614.00
You Save: $271.69 (45%)
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Product Specifications
- Other Name: Block; Junction Boxes; Block, Main Wiring Junction And Fuse Block
Fits the following GMC Models:
- Terrain | 2013-2016 | Denali, SLE, SLT | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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GMC Junction Block Part Number: 15177119
$486.48 MSRP: $768.89
You Save: $282.41 (37%)
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Product Specifications
- Other Name: Block; Junction Boxes; Relay Boxes; Fuse Box
- Replaced by: 15786043
Fits the following GMC Models:
- Sierra 1500 | 2003-2005 | Base, Denali, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2005, 2003 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 2003-2004 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2003-2005 | Base, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2003-2005 | Base, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
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GMC Fuse & Relay Box Part Number: 87829561
$156.68 MSRP: $246.48
You Save: $89.80 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Block
Fits the following GMC Models:
- Sierra 2500 HD | 2024 | AT4, AT4X, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2024 | AT4, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
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GMC Distribution Box Part Number: 84219289
$91.03 MSRP: $142.60
You Save: $51.57 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Block Assembly-Battery Distribution Engine Compartment Fuse; Block, Wiring Junction
- Replaces: 84012731, 23232162, 84044647
Fits the following GMC Models:
- Sierra 1500 | 2016-2018 | 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
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GMC Fuse & Relay Box Part Number: 25856249
$328.66 MSRP: $517.11
You Save: $188.45 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Block Assembly-Accessory Wiring Junction; Junction Boxes; Fuse Box; Block, Main Wiring Junction And Fuse Block; Block, Wiring Junction
- Replaces: 25784722, 25856250, 25784721
Fits the following GMC Models:
- Acadia | 2007-2008 | SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Junction Block Part Number: 20813088
Product Specifications
- Other Name: Block Assembly-Body Wiring Harness Junction; Junction Boxes; Relay Boxes; Fuse Box; Block, Wiring Junction
- Replaces: 15174622
Fits the following GMC Models:
- Sierra 1500 | 2009-2013 | Hybrid | 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV)
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GMC Junction Block Part Number: 84076946
$317.08 MSRP: $568.76
You Save: $251.68 (45%)
Product Specifications
- Other Name: Block; Junction Boxes; Fuse Box; Block, Main Wiring Junction And Fuse Block
- Replaces: 23299776, 23487319
Fits the following GMC Models:
- Canyon | 2015-2018 | All Terrain, Base, Denali, SL, SLE, SLT | 4 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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GMC Junction Block Part Number: 22798215
Product Specifications
- Other Name: Block; Junction Boxes; Relay Boxes; Fuse Box; Block, Wiring Junction
- Replaces: 20978812, 25941370
Fits the following GMC Models:
- Sierra 1500 | 2010-2013 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.2 L FLEX
- Sierra 2500 HD | 2012-2013 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Sierra 3500 HD | 2012-2013 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View More
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GMC Junction Block Part Number: 23299777
$309.31 MSRP: $554.82
You Save: $245.51 (45%)
Product Specifications
- Other Name: Block; Junction Boxes; Fuse Box; Block, Main Wiring Junction And Fuse Block
- Replaces: 23487320
Fits the following GMC Models:
- Canyon | 2015 | Base, SL | 4 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS

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GMC Fuse Box

Choose OEM Fuse Box, 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 Fuse Box. 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.

GMC Fuse Box ensures that the power flow is safe and prevents any short before it leaves you stranded on the road. GMC began in 1901 and manufactures rugged trucks and SUVs that carry, pull, and get them to their destination with no fuss. Powerful boxed frames are loaded and shake off craters. Big V8 and turbo-diesel options provide assured power on steep grades. Silent cabins mute highway screams and make long trips short. MultiPro tailgate is a smart tailgate that folds downwards, opens flat, and makes bed work a single-person job. Hitch direction and surround vision cameras ensure that blind spots and trailers are kept in sight. The hardcore testing of torture eliminates the weak areas before a customer even picks up the key. Keeping up with the constant technological changes is an indication that the company is not about all the glitz and glamour. The Fuse Box is sold separately and is located between the dash and engine bay in each GMC and contains quick-blow fuses, which cut the power flow the moment any circuit exceeds its 32-volt threshold and saves wires, modules, and your wallet. The Fuse Box will be connected with a built-in power module, which would enhance safety and reduce unused space. Cabin lights or door locks run dead, first look at this little guardian and accuse larger components. Its rugged exterior withstands heat, vibration, and spray of water hence it can survive the day-to-day torture in the entire line.

GMC Fuse Box Parts and Q&A

Junction Block
15177119
Q: How to replace the Fuse Box in the Body Wiring Harness Junction Block on GMC Sierra 1500?
A:
The first step to replace the body wiring harness junction block requires uninstalling its retaining nut followed by removing the cover through tab pressing. The harness must be detached from the junction block's front side while pressing on its tabs will free it from the bracket. Begin by taking out all retaining bolts at the back of the device before using a screwdriver to split up the wire harness block from the junction block. The wire harness block needs to be installed onto the junction block followed by tightening its retaining bolts to 6 N.m (53 lb in) as per the Fastener Notice instructions. Safely install the junction block to its bracket while pushing the top part to ensure proper seating followed by harness attachment at the junction block front side. Finish the installation by putting in the cover until it snaps into position and tighten the retaining nut by hand until it reaches its seat.
Junction Block
15786043
Q: How to replace the Fuse Box in the Body Wiring Harness Junction Block on GMC Yukon?
A:
The replacement process starts by unfastening the cover retaining nut before slotting the tabs to extract the cover. Press to release the tabs which allows removal of the junction block from its bracket after detaching the harness from the front side of the junction block. The first step after removing the junction block is accessing the rear of the block to remove retaining bolts then using a screwdriver to separate the wire harness block from the junction block. The wire harness block needs installation onto the junction block with retaining bolts tightened to 6 N.m (53 lb in) following Fastener Notice in Service Precautions. Install the junction block to the bracket bracket until it clicks by pushing on its top part and activate the harness through the front of the junction block. Proceed with installing the cover which will snap into position before you hand-tighten the retaining nut until it rests properly.