Replacement Under-Hood Fuse Block / Power Distribution Center
This is a direct replacement Battery Distribution Engine Compartment Fuse Block for compatible late-model Chevrolet Silverado and GMC Sierra HD trucks. It serves as the main electrical junction box under the hood, housing fuses and relays that protect and distribute power to critical vehicle systems.

 Product Overview
The engine compartment fuse block is a vital component in your truck's electrical architecture. A failure in this unit—due to corrosion, thermal stress, or internal fault—can lead to a wide range of electrical problems, from non-starting conditions to malfunctions in various subsystems. This replacement unit is designed to restore reliable power distribution.

 Key Features & Specifications
 Replaces OE Part Numbers: 85015808, 84646134, 84493556.
 Primary Compatibility:
 For Chevrolet Silverado 1500 (2019-2022)
 For Chevrolet Silverado 2500HD / 3500HD (2020-2025)
 For GMC Sierra 1500 (2019-2022)
 For GMC Sierra 2500HD / 3500HD (2020-2025)

 Construction: Reinforced ABS plastic housing with metal conductive components for durability and heat resistance.

 Function: Centralized unit containing fuses and relays that protect circuits for the engine control module, ABS system, lighting, and other essential electrical loads.

 Important Compatibility Note
It is the buyer's responsibility to confirm this part is compatible with their specific vehicle. Please verify your truck's exact year, make, model, trim level, and compare the physical appearance and connector layout of your original fuse block with the product images. Compatibility is as stated in the vehicle fitment list.

 Installation Note
Installation requires disconnecting the vehicle battery and replacing the entire fuse block assembly. This process involves handling multiple primary electrical connections. Due to the complexity and critical safety nature of this component, professional installation by a qualified technician or careful consultation of a vehicle-specific service manual is strongly recommended.

 Potential Benefit
Replacing a confirmed faulty engine compartment fuse block can resolve multiple, seemingly unrelated electrical issues by addressing the problem at the central power source, offering a more efficient solution than chasing individual circuit failures.

 Package Includes
1 x 84646134 Engine Compartment Fuse Block Assembly