Product Description
The Bendix 2512066 is a Fourth Series Hydrovac vacuum brake booster designed for heavy-duty truck and bus braking systems. This frame-mounted, single-diaphragm booster uses engine vacuum to increase hydraulic brake pressure and reduce the amount of pedal effort required from the driver.
The 2512066 measures approximately 12.75 inches in diameter and 18.63 inches in overall length. It uses 1/4-inch inverted-flare hydraulic input and output ports, a 1/2-inch inverted-flare vacuum supply connection, and a 1/2-inch air-cleaner port.
This booster requires approximately 16 inches Hg of vacuum for proper operation and is rated to produce approximately 1,000 PSI output pressure with 150 pounds of pedal force under specified test conditions.
The 2512066 is associated with older Chevrolet and GMC medium- and heavy-duty trucks and buses equipped with Bendix Hydrovac braking systems. Because several similar Hydrovac units were produced with different port sizes, mounting configurations, and internal specifications, always compare the original booster and part number before ordering.
Part Number: 2512066
Brand: Bendix
Product Type: Hydrovac Vacuum Brake Booster
Series: Fourth Series
Diaphragm Type: Single
Mounting: Frame Mount
Diameter: 12.75 in.
Overall Length: 18.63 in.
Hydraulic Input Port: 1/4 in. inverted flare
Hydraulic Output Port: 1/4 in. inverted flare
Vacuum Supply: 1/2 in. inverted flare
Air Cleaner Port: 1/2 in.
Minimum Vacuum: Approximately 16 in. Hg
Output: Approximately 1,000 PSI at specified test conditions
Common Cross References: 2512066X, 2508096, 2508829, 2515050
