Skip to content

84008524 Genuine GM Engine Wiring Harness Junction Block For Silverado Sierra 4.3L 5.3L 6.2L

P/N: 84008524 Manufactured by: GM
Original price $348.00 - Original price $348.00
Original price
$348.00
$348.00 - $348.00
Current price $348.00
8 in Stock
Condition: New
We accept:
  • PayPal
  • Venmo
Need help choosing the right part?Contact our support team
+1 828-705-1030
Monday – Saturday | 8:00 AM – 8:00 PM (EST)
2-3 Day Free Shipping
Return within 30-Days
Packed Ready to Ship
24/7 Expert Support
2-Year Warranty

Unit Auto Parts LLC provides a complimentary 2-Year Warranty on all automotive parts. Shop with confidence knowing your purchase is protected. Learn More

Description

The 84008524 is a genuine GM engine wiring harness junction block designed to organize and distribute electrical connections between the engine harness, fuse system, and vehicle control circuits. It acts as a central electrical interface that routes power and signal pathways required for proper engine system operation.

Vehicle Compatibility

Year Vehicle Engine Trims
2019 Chevrolet Silverado 1500 LD 5.3L V8 Flex, 5.3L V8 Gas Custom, LT, WT
2019 Chevrolet Silverado 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas High Country, LT, LTZ, WT
2019 Chevrolet Silverado 3500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas High Country, LT, LTZ, WT
2019 GMC Sierra 1500 Limited 5.3L V8 Flex, 5.3L V8 Gas Base, SLE
2019 GMC Sierra 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas Base, Denali, SLE, SLT
2019 GMC Sierra 3500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas Base, Denali, SLE, SLT
2018 Chevrolet Silverado 1500 4.3L V6 Flex, 5.3L V8 Electric/Gas, 5.3L V8 Flex, 5.3L V8 Gas, 6.2L V8 Gas Custom, High Country, LS, LT, LTZ, SSV, WT
2018 Chevrolet Silverado 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas High Country, LT, LTZ, WT
2018 Chevrolet Silverado 3500 HD 6.0L V8 Flex, 6.0L V8 Gas High Country, LT, LTZ, WT
2018 GMC Sierra 1500 4.3L V6 Flex, 5.3L V8 Electric/Gas, 5.3L V8 Flex, 5.3L V8 Gas, 6.2L V8 Gas Base, Denali, SLE, SLT
2018 GMC Sierra 2500 HD 6.0L V8 Flex, 6.0L V8 Gas Base, Denali, SLE, SLT
2018 GMC Sierra 3500 HD 6.0L V8 Flex, 6.0L V8 Gas Base, Denali, SLE, SLT
2017 Chevrolet Silverado 1500 4.3L V6 Flex, 5.3L V8 Electric/Gas, 5.3L V8 Flex, 5.3L V8 Gas, 6.2L V8 Gas Custom, High Country, LS, LT, LTZ, SSV, WT
2017 Chevrolet Silverado 2500 HD 6.0L V8 Flex, 6.0L V8 Gas High Country, LT, LTZ, WT
2017 Chevrolet Silverado 3500 HD 6.0L V8 Flex, 6.0L V8 Gas High Country, LT, LTZ, WT
2017 GMC Sierra 1500 4.3L V6 Flex, 5.3L V8 Electric/Gas, 5.3L V8 Flex, 5.3L V8 Gas, 6.2L V8 Gas Base, Denali, SLE, SLT
2017 GMC Sierra 2500 HD 6.0L V8 Flex, 6.0L V8 Gas Base, Denali, SLE, SLT
2017 GMC Sierra 3500 HD 6.0L V8 Flex, 6.0L V8 Gas Base, Denali, SLE, SLT


General Specifications

Condition New
Part Number 84008524
Brand GM
Part Type Engine Wiring Harness Junction Block
Years 2017–2019
Vehicle Chevrolet Silverado / GMC Sierra
Engine 4.3L V6, 5.3L V8, 6.0L V8, 6.2L V8
Dimensions 15.4 x 9.6 x 5.3 inches
Weight 3.70 lb
Fitment Type Direct Replacement


Product Features

The 84008524 engine wiring harness junction block is built to match factory electrical system performance and installation requirements:

  • Genuine GM engine wiring harness junction block
  • Central connection point for engine electrical circuits
  • Distributes power between engine systems, relays, and fuse circuits
  • Designed to match the original GM wiring harness layout
  • Supports proper routing of engine control and power supply circuits
  • Factory-style connectors ensure secure electrical connections

Application Notes

The 84008524 is designed for GM truck platforms that use this type of engine harness junction block for electrical distribution between engine systems and fuse circuits. It installs in the original mounting location and connects to the factory wiring harness connectors.

Always verify part number, engine configuration, and system type before installation.

Make an offer
Make an offer
Make an offer