RHAOCZIYAUTO Battery Distribution Fuse Block for Chevy Silverado & GMC Sierra 2019-2025 — Direct-Fit, Reinforced ABS

RHAOCZIYAUTO’s underhood battery distribution fuse block replaces factory part numbers 84646134, 84493556 and 85015808 to restore power distribution and protect critical engine systems on compatible Silverado and Sierra trucks.

If your Chevrolet Silverado or GMC Sierra is experiencing intermittent power to ABS, ECU or cooling components, a worn or damaged underhood fuse/junction block can be the root cause. This RHAOCZIYAUTO unit is designed as a direct-fit replacement for many 2019–2025 Silverado and Sierra models, built from reinforced ABS and metal components to resist impact, heat, corrosion and vibration. It’s intended to replicate OEM fitment and routing so installation is straightforward for technicians and competent DIYers.

Which truck models and years does this fuse block fit?

This battery distribution fuse block is specified for late-model Chevrolet and GMC full-size pickups. It matches factory mounting points and electrical connections on the listed vehicles so you won’t need custom wiring or brackets.

• Chevrolet Silverado 1500: 2019–2022 (including 2020 LTD)
• Chevrolet Silverado 2500HD/3500HD: 2020–2024
• GMC Sierra 1500: 2019–2023 (including 2022 Limited)
• GMC Sierra 2500HD/3500HD: 2020–2024

What electrical and engine systems does this block protect?

The underhood junction block routes battery current and houses fuses and relays that safeguard vital modules. Replacing a failing block helps maintain reliable power delivery to safety and control systems.

• Anti-lock brake pump and ABS module power distribution
• Engine control unit (ECU) power and fused circuits
• Cooling system electric pumps and fans feed
• Primary and auxiliary battery connections where applicable

How durable is the RHAOCZIYAUTO replacement compared with the original?

Manufactured from reinforced ABS plastic and metal, this unit is engineered for long life under hood. The materials and construction focus on resisting the common stresses found in engine bays without compromising fit or function.

• Reinforced ABS resists impact, abrasion and heat
• Metal contacts resist corrosion and maintain conductivity
• Pressure- and vibration-resistant design for highway use
• OEM-style mounting and connector locations for proper alignment

What should I know about installation and identification?

The block is supplied as an underhood battery distribution / junction block that matches OEM connectors and bolt locations. Confirm your truck’s part number compatibility before purchase to ensure a hassle-free swap.

• Replaces GM numbers: 84646134, 84493556, 85015808
• Fits models from 2019 through 2024/2025 as specified
• Designed for units with auxiliary battery or single primary battery configurations (no dual alternator)
• Professional installation recommended if unfamiliar with high-current battery circuitry

Who is this for: This RHAOCZIYAUTO Underhood Battery Distribution Fuse Block is for owners and technicians restoring proper power distribution on Chevrolet Silverado and GMC Sierra trucks listed above. It suits fleet maintenance shops, independent mechanics and do-it-yourself enthusiasts who need an OEM-style replacement to address power feed, fuse or relay faults affecting ABS, ECU or cooling components. If your factory junction block shows signs of melting, corrosion, blown fuses that recur after replacement, or loose/overheated terminals, this unit provides the compatible physical replacement to return electrical function without complex rewiring.