The Bendix hydrovac brake booster, part number 2512076, is a cornerstone of reliable braking for International trucks, such as the 1978 Loadstar 1600, and select GMC models. This single-diaphragm vacuum booster enhances brake pedal force, ensuring safe and effective stopping power for heavy-duty vehicles.
Part Overview and Function
The 2512076 hydrovac is a frame-mounted brake booster with a 12-3/4" diameter and 17-5/8" length. It includes a 1/2" grommet-style input, 1/2" - 20 copper gasket output, 3/4" air cleaner, and 1/2" NPT vacuum supply port. Engineered for durability, this Bendix component is ideal for International trucks, providing consistent braking performance under demanding conditions. Its robust design makes it a trusted choice for fleet managers and owner-operators alike.
Purchasing from Ace Motor Parts
At Ace Motor Parts, we specialize in brand-new Bendix 2512076 hydrovac brake boosters, custom-built to order for your International truck. Our units eliminate the need for core returns, saving you the cost and inconvenience of shipping back an old core. These fnew hydrovac units are crafted with precision and typically ship within 3-5 business days. By choosing Ace Motor Parts, you ensure a hassle-free purchase and a high-quality component tailored to your vehicle’s needs. Contact us to verify fitment and secure your order today.
Cross-Reference Numbers
To source the correct hydrovac, cross-referencing part numbers is essential. The Bendix 2512076 is interchangeable with the following: 2512076, RV2512076X, 2514917, 1669493C91, 2512076X, and 51-8002 (A1 Cardone). These numbers may appear on the booster’s tag, often stamped as “18 2512076,” or in service manuals. To avoid fitment issues due to minor variations in fittings or diaphragm design, confirm compatibility with your dealer or consult Ace Motor Parts’ experts before purchasing.
Testing the Hydrovac for Performance
To ensure your 2512076 hydrovac is operating correctly, perform these diagnostic steps:
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Visual Inspection: Examine the booster, vacuum lines, and fittings for wear, leaks, or corrosion. Verify that the vacuum hose and connections are secure.
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Vacuum Check: With the engine running, connect a vacuum gauge to the 1/2" NPT port. A reading of 15–20 inHg confirms proper function. Lower readings may indicate a diaphragm failure or vacuum leak.
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Pedal Test: With the engine off, pump the brake pedal several times to exhaust vacuum; the pedal should feel firm. Start the engine; a slight pedal drop signals effective vacuum assistance. No drop suggests a booster issue.
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Driving Test: During a test drive, ensure brakes respond smoothly without excessive effort. Weak or delayed braking may require booster replacement.
Regular maintenance, such as inspecting vacuum lines and cleaning the air filter, extends the hydrovac’s lifespan. If issues persist, Ace Motor Parts can supply new units that can be purchased at this link.