Related Products
Engine Wiring Harness Junction Block - GM (84303175)
2017-2019 GM - 84303175
- MSRP: $320.57
- Discount: $93.07 (29% off)
- Sale Price: $227.50
- MSRP: $320.57
Review Fitment & Product Details
Details
- Brand:
- SKU:
84303175
- Other Names:
Fuse & Relay Box
- Description:
GM Genuine engine wiring harness junction block located in the engine compartment. This under‑hood power distribution center houses primary fuses and relays and distributes battery power to engine/body circuits. Also listed as Fuse & Relay Box / Junction Block.
- Condition: New
- Notes: Order by description.
- Replaces:
23285572, 84008524, 84008525, 84008527, 84071500, 84075768, 84075776, 84075777, 84075778, 84303177, 84303178, 84303179
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Pricing is valid online only and may vary in your local store
Vehicle Fitment
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
Key Product Information
Additional Information
| FITMENT | Used on K2XX GM full‑size pickups (2016–2019 Silverado/Sierra 1500/2500/3500; 2019 models are LD/Limited carryover) and select K2XL SUVs (Escalade/Tahoe/Yukon where cataloged). Not for vehicles equipped with eAssist; verify by VIN. Chevrolet Silverado 1500 (2017-2018): 4.3L V6, 5.3L V8, 6.2L V8 Chevrolet Silverado 1500 LD (2019): 5.3L V8 Chevrolet Silverado 2500 HD (2016-2019): 6.0L V8, 6.0L V8 FlexFuel Chevrolet Silverado 3500 HD (2016-2019): 6.0L V8, 6.0L V8 FlexFuel GMC Sierra 1500 (2016-2018): 4.3L V6, 5.3L V8, 6.2L V8 GMC Sierra 1500 Limited (2019): 5.3L V8 GMC Sierra 2500 HD (2016-2019): 6.0L V8, 6.0L V8 FlexFuel GMC Sierra 3500 HD (2016-2019): 6.0L V8, 6.0L V8 FlexFuel Cadillac Escalade (2017): 6.2L V8 Chevrolet Tahoe (2017): 5.3L V8 GMC Yukon (2017): 5.3L V8, 6.2L V8 |
| SYMPTOMS | Multiple electrical circuits inoperative, intermittent no‑crank, inoperative wipers or other loads due to internal/non‑serviceable relays, repeated fuse failures, heat damage or corrosion at the under‑hood fuse/relay center. |
| TROUBLESHOOTING | Before replacement, inspect for loose or backed‑out terminals, moisture intrusion, or overheated fuse cavities. Confirm power and ground to the block. If only one circuit is affected, check that circuit’s downstream wiring/loads first. A smoke test for water leaks into the engine bay can help if corrosion is present. |
| INSTALLATION | Disconnect the negative battery cable before service. Release and unplug all harness connectors at the junction block; move/module is typically secured with bolts/clips. Transfer any applicable covers/brackets. Torque fasteners per service manual and ensure all connectors are fully seated; reconnect battery and verify operation. |
| MAINTENANCE | |
| FAULT CODES | |
| REPLACEMENTS | 23143470 23143471 23254025 23285565 23285567 23285569 23285572 84008524 84008525 84008527 84071500 84075768 84075776 84075777 84075778 84303177 84303178 84303179 |
| WEIGHT | 3.50 lb |
| DIMENSIONS | 13.38 x 8.07 x 3.85 inches |
Features and Benefits
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Brand
GM
General Motors (GM) offers a wide range of automotive parts and components for their various vehicle brands, including Chevrolet, Buick, GMC, and Cadillac. Here are some key categories of GM parts:
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