2503151 Hydrovac
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2503151 Hydrovac

$675.00 In Stock Pre-Order Sold out
SKU: HYDRO2503151
Manufacturer Part Number: 2503151
Availability: In Stock
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CODE: HYDRO2503151
Categories: Brake Boosters, Hydrovac Boosters, Smart Products Filter Index - Do not delete
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2503151 GM/Chevy Hydrovac 
Hyster Forklift

2503151 Hydrovac Brake Booster - Remanufactured 3-Line Unit

The 2503151 Hydrovac Brake Booster is a remanufactured vacuum-assisted hydraulic brake booster designed for select Chevrolet and GMC medium-duty truck, pickup, and van applications. This single diaphragm, 3-line Hydrovac utilizes engine vacuum to increase hydraulic braking force, helping reduce pedal effort while improving overall braking performance.

Originally used on a variety of commercial and heavy-duty vehicles during the 1960s, this frame-mounted unit is engineered to provide dependable brake assist while maintaining the original braking system configuration. Each unit is professionally remanufactured to restore proper operation and reliability for restoration projects, fleet maintenance, and classic truck repairs.

Featuring an 11.03-inch diaphragm diameter, 16.125-inch overall length, and the correct hydraulic and vacuum port configuration, this Hydrovac is designed to serve as a replacement for original equipment units requiring part number 2503151 or approved interchange numbers.

Product Specifications
Part Number 2503151
Type Single Diaphragm Hydrovac
Brake Line Configuration 3-Line Unit
Mounting Style Frame Mount with Bracket
Condition Remanufactured
Diaphragm Diameter 11.03 Inches
Overall Length 16.125 Inches
End Cap G
Port Configuration
Hydraulic Inlet 1/4" Inverted Flare
Hydraulic Outlet 5/16" Inverted Flare
Vacuum Supply Port 1/2"
Air Cleaner Port 1/2"
Known Vehicle Applications
Make Model Year
Chevrolet C60 1965
Chevrolet K30 Pickup 1968
Chevrolet P30 Series 1967
Chevrolet P30 Van 1968
GMC K35 / K3500 Pickup 1968
GMC P35 / P3500 Van 1967-1968
Interchange / Cross Reference Numbers
2504303
Important: Hydrovac brake boosters were produced in numerous configurations throughout their production life. Always verify the original part number, brake line arrangement, mounting style, dimensions, and port sizes before ordering to ensure proper fitment.

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