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84474523 Genuine GM Power Brake Assist Booster Assembly
84474523 Genuine GM Power Brake Assist Booster Assembly

84474523 Genuine GM Power Brake Assist Booster Assembly

P/N: 84474523 Manufactured by: GM
$487.00 - $487.00
$487.00
$487.00 - $487.00
$487.00
1 in Stock
Condition: New
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2-Year Warranty

At Line Truck Parts LLC, we are committed to providing reliable automotive parts and a transparent customer experience. Eligible parts purchased directly from our website are covered by a 2-Year Limited Warranty, giving you added confidence in your purchase. Learn More

Product Overview

The 84474523 is a genuine GM power brake booster assembly designed for specified 2012–2025 Chevrolet Express 2500, Express 3500, Express 4500, and GMC Savana 2500 applications. It provides power assistance within the vehicle’s braking system and is specified for direct-fit installation in the listed configurations.

Vehicle Compatibility

Year Vehicle Engine Trims
2025 Chevrolet Express 2500 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2025 Chevrolet Express 3500 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2025 Chevrolet Express 4500 6.6L V8 Gas Base
2025 GMC Savana 2500 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2024 Chevrolet Express 2500 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2024 Chevrolet Express 3500 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2024 Chevrolet Express 4500 6.6L V8 Gas Base
2024 GMC Savana 2500 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2023 Chevrolet Express 2500 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2023 Chevrolet Express 3500 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2023 Chevrolet Express 4500 6.6L V8 Gas Base
2023 GMC Savana 2500 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2022 Chevrolet Express 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2022 Chevrolet Express 3500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2022 Chevrolet Express 4500 6.6L V8 Gas Base
2022 GMC Savana 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2021 Chevrolet Express 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2021 Chevrolet Express 3500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2021 Chevrolet Express 4500 6.6L V8 Gas Base
2021 GMC Savana 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.6L V8 Gas Base, LS, LT
2020 Chevrolet Express 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2020 Chevrolet Express 3500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2020 Chevrolet Express 4500 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base
2020 GMC Savana 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2019 Chevrolet Express 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2019 Chevrolet Express 3500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2019 Chevrolet Express 4500 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base
2019 GMC Savana 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2018 Chevrolet Express 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2018 Chevrolet Express 3500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2018 Chevrolet Express 4500 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base
2018 GMC Savana 2500 2.8L L4 Diesel; 4.3L V6 Flex; 4.3L V6 Gas; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2017 Chevrolet Express 2500 2.8L L4 Diesel; 4.8L V8 Flex; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2017 Chevrolet Express 3500 2.8L L4 Diesel; 4.8L V8 Flex; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2017 Chevrolet Express 4500 6.0L V8 Flex; 6.0L V8 Gas Base
2017 GMC Savana 2500 2.8L L4 Diesel; 4.8L V8 Flex; 6.0L V8 Flex; 6.0L V8 Gas Base, LS, LT
2016 Chevrolet Express 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas; 6.6L V8 Diesel Base, LS, LT
2016 Chevrolet Express 3500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas; 6.6L V8 Diesel Base, LS, LT
2016 Chevrolet Express 4500 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas; 6.6L V8 Diesel Base
2016 GMC Savana 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.0L V8 Gas; 6.6L V8 Diesel Base, LS, LT
2015 Chevrolet Express 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2015 Chevrolet Express 3500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2015 Chevrolet Express 4500 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base
2015 GMC Savana 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2014 Chevrolet Express 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2014 Chevrolet Express 3500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2014 Chevrolet Express 4500 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base
2014 GMC Savana 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2013 Chevrolet Express 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2013 Chevrolet Express 3500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2013 Chevrolet Express 4500 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base
2013 GMC Savana 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2012 Chevrolet Express 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2012 Chevrolet Express 3500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT
2012 Chevrolet Express 4500 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base
2012 GMC Savana 2500 4.8L V8 Flex; 6.0L V8 CNG; 6.0L V8 Flex; 6.6L V8 Diesel Base, LS, LT


Product Features

The 84474523 power brake booster assembly is manufactured to GM factory specifications for providing power assistance within the braking system.

  • Supplies braking assistance as the power booster assembly specified for the vehicle configurations identified in the compatibility table.
  • Carries a direct-fit application designation, with installation dependent on matching the vehicle’s original booster configuration.
  • Vehicle-weight rating forms part of the documented application requirements, making the applicable GVW/GVWR configuration a required fitment reference.
  • Chevrolet Express 4500 coverage is identified for Base trim throughout the listed model-year range, with engine eligibility varying by year.
  • GMC Savana 2500 application coverage includes Base, LS, and LT trims within the documented year-by-year engine combinations.

General Specifications

Condition New
Part Number 84474523
Brand GM
Part Type Power Brake Booster Assembly
Years 2012–2025
Vehicle Applications Chevrolet Express 2500; Express 3500; Express 4500; GMC Savana 2500
Engine Configurations 2.8L L4 Diesel; 4.3L V6 Flex/Gas; 4.8L V8 Flex; 6.0L V8 CNG/Flex/Gas; 6.6L V8 Diesel/Gas
System Power Braking
Dimensions 22.1 × 13.2 × 10.6 inches
Weight 14.70 lb


Installation Notes

The 84474523 should be matched to the vehicle’s original brake booster identification before installation. Confirm the model year, engine, trim, and applicable vehicle-weight rating.

Verify the exact part number and booster configuration against the vehicle’s braking-system requirements before installation.