SKU: 6603474374

1955-59 Chevy, GMC Truck Hydropower Hydraulic Brake Assist System, Firewall Mount

$358.15 $397.94
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Ships within 48 hours · Estimated delivery Sep 28 - Oct 3

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Description

1955-59 Chevy, GMC Truck Hydropower Hydraulic Brake Assist System, Firewall MountOur Hydropower hydraulic brake assist power booster fits 1955 59 Chevy and GMC trucks and generates up to 1800psi of line pressure to the brake calipers. It is fitted with a POL master cylinder and proportioning valve. This kit is powered by hydraulic line pressure from the power steering pump. Firewall and valve cover clearance is equivalent to a 7" diameter vacuum booster. The firewall brackets are correct for 55 59 2nd series GM truck applications.

Our Hydropower hydraulic brake assist power booster fits 1955-59 Chevy and GMC trucks and generates up to 1800psi of line pressure to the brake calipers. It is fitted with a POL master cylinder and proportioning valve. This kit is powered by hydraulic line pressure from the power steering pump. Firewall and valve cover clearance is equivalent to a 7" diameter vacuum booster. The firewall brackets are correct for 55-59 2nd series GM truck applications.

The average power steering pump puts out from 800psi to 1400psi line pressure. The Hydropower® uses this to convert to pressure to apply against the master cylinder. This greatly improves stopping performance and driver feedback. These hydraulic power boosters can be easily installed on an existing vacuum booster vehicle or used to convert a manual brake setup to power with ordinary hand tools and average mechanical ability.

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 6603474374

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4.6 ★★★★★
Based on 14 reviews
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Product Reviews
N
Verified Purchase
natsusnowy1204
Dallas, US
★★★★★ 3
The quality is disappointing
Model name: iPad 11th A16 2025/10th-11/10.9 Inch, Model name: iPad 11th A16 2025/10th-11/10.9 Inch
There’s slightly crack on the corner, so no way to remove the air bubble. Plus the accessories are way too small when you tried to clean the iPad screen
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 12, 2025
A
Verified Purchase
Aim
Omaha, US
★★★★★ 5
Good size for everyday use.
Comfy size. You can put your tablet in with ease, has plenty of pocket space for accessories. Fabric is water resistant. The appearance is exactly how it shows as advertised. Good quality which is worth the money. I use it for my Pixel 11 tablet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
L
Verified Purchase
lg
Waukegan, US
★★★★★ 5
Cute, functional, and well-made
I've had this for a while, and would actually like a larger one too for my laptop. This is very well made, with durable fabric, strong zippers and great padding. I can easily fit my Galaxy Tab S9 in its protective case in the padded section inside, my old Kindle Oasis with cover in the zipper sleeve outside, my Galaxy S23 Ultra, also in its case in the slim magnetic pocket outside. It also holds my charging cords, adapter and earbuds in the case. It fits a lot and is not bulky and easily slips into a tote. I'm glad I picked this up, and when it's not moving around, it's useful just for storing cords and accessories.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2024
G
Verified Purchase
Ga***e
Massapequa, US
★★★★★ 5
Looks sturdy and well-made - waiting to use
Not using this yet, but from examining it, this laptop sleeve appears sturdy and durable. The padded protection looks solid for keeping a MacBook safe. The design is versatile - works as a carrying case or travel bag. The handle is convenient, and it's lightweight despite the protective padding. Based on build quality and appearance, this looks like a reliable laptop sleeve. Highly recommend for MacBook owners!
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Reviewed in the United States on May 31, 2026
N
Verified Purchase
Nick M.
Belleville, US
★★★★★ 5
Fits 11” iPad Air with keyboard case
Was looking for something that could hold not just my 11” iPad Air, but also hold it while in its keyboard case with flash sticks and storage for plugs and such. This fits everything perfectly, has good padding, storage pockets inside and out, and feels like a quality build.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025

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