SKU: 78885433662

1973-87 Chevy, GMC Truck Hydropower Brake Boost Kit with POL or Wilwood Master Cylinder

Sale price$435.51 Regular price$483.90
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

1973-87 Chevy, GMC Truck Hydropower Brake Boost Kit with POL or Wilwood Master CylinderOur Hydropower hydraulic brake assist power booster fits 1973 87 Chevy and GMC trucks and generates up to 1800psi of line pressure to the brake calipers. It is fitted with a POL or Wilwood master cylinder and a Black Out adjustable 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 73 87

Our Hydropower hydraulic brake assist power booster fits 1973-87 Chevy and GMC trucks and generates up to 1800psi of line pressure to the brake calipers. It is fitted with a POL or Wilwood master cylinder and a Black Out adjustable 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 73-87 GM truck applications.
The average power steering pump puts out from 800psi to 1400psi line pressure. The Hydropower unit 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
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SKU: 78885433662

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Kacy Randolph
Louisville, US
★★★★★ 3
Size down.
Size: 16, Color: Black
Fit too large. Nice quality.
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Reviewed in the United States on May 14, 2026
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JMommy
Omaha, US
★★★★★ 5
Great vest
Size: 12, Color: Black
Great vest. I love the slim fit. It looks very nice on my son, not baggy or boxy looking like some vest. My son has used it for several occasions including a wake, a Beta Club induction, awards day, and soon his graduation celebration at church. The quality and material are good. Definitely worth what I paid.
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Reviewed in the United States on May 29, 2026
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Katy
Houston, US
★★★★★ 5
Elegant Color and Very Well Made Vest
Size: 14, Color: Light Grey, Size: 14, Color: Light Grey
The vest is really nice and great quality, but it does run a little smaller than expected. I would suggest sizing up if you want a more comfortable fit. Other than that, it looks very sharp and well made.
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Reviewed in the United States on April 24, 2026
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Cyndie Sue
New York, US
★★★★★ 5
Part of his Tu Bardh Wilson costume
Size: 5, Color: Grey, Size: 5, Color: Grey
Nice looking vest!
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Reviewed in the United States on April 6, 2026
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Heather
Cuba, US
★★★★★ 4
Size up!
Size: 16, Color: Black
For sizing size up as much as you can. Good quality but sizing wasn’t great.
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Reviewed in the United States on August 1, 2025

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