Vacuum Reservoir

Vacuum Reservoir – Stable Brake Boost for EV Conversions & Custom Builds

Consistent Vacuum Supply. Smoother Braking. Built for Electric Systems.

The Vacuum Reservoir is an essential component for EV conversions and custom electric vehicle builds that retain a vacuum-assisted brake booster. In electric drivetrains—where a traditional engine vacuum source is absent—this reservoir ensures that your brake vacuum pump doesn’t need to run constantly, reducing pump cycling, noise, and wear while providing reliable, consistent brake boost when you need it most.

Built from durable materials and designed to integrate seamlessly into any vacuum-assist braking system, this reservoir is the perfect complement to your electric vacuum pump setup, especially in performance builds, regenerative braking systems, or lightweight EV conversions.

⚙️ Key Features:

• Consistent Vacuum Supply: Maintains pressure stability for smoother, more responsive braking

• Reduces Pump Cycling: Minimizes wear and noise from your vacuum pump by reducing on/off frequency

• Universal Compatibility: Works with all 12V vacuum pump kits (Hella, LEED, Tesla pumps, etc.)

• Durable Construction: Aluminum or reinforced plastic reservoir options (depending on model)

• Pre-Tapped Ports: Easy integration with vacuum lines, check valves, and sensors

• Compact Design: Installs easily in engine bays, under dash, or frame-mounted configurations

🔩 Technical Specifications:

• Volume: 1.0 to 2.5 liters (model dependent)

• Port Size: 3/8” NPT or barb-style fittings

• Material: Powder-coated aluminum or heavy-duty polymer (choose at checkout)

• Operating Pressure Range: –27 inHg (vacuum)

• Mounting: Integrated tabs or universal strap kits

• Dimensions: Varies by model; compact form factors available

• Check Valve Compatibility: Works with all common brake vacuum check valves

🛠️ Ideal For:

• Electric Vehicle Conversions (cars, trucks, motorcycles)

• Regenerative Braking Systems with Vacuum Boosters

• Hybrid Builds or Plug-in Retrofits

• Off-Road and Lightweight Utility EVs

• Race Cars or Performance EVs with High Brake Demand

✅ Why Choose a Vacuum Reservoir from EVSource?

At EVSource.com, our vacuum reservoirs are selected and tested for compatibility with EV braking systems, ensuring safe, reliable stopping power. Each reservoir is built to withstand real-world conditions, and we offer supporting components like vacuum pumps, pressure switches, and check valves for a complete plug-and-play system.

🧰 Recommended Add-Ons:

• 12V Vacuum Pump Kits (Hella-style or Tesla OE options)

• Vacuum Pressure Switch (Adjustable Cut-On/Cut-Off)

• Inline Check Valves & Tee Fittings

• Vacuum Hose Kits (Reinforced, Oil-Resistant)

• Wiring Harness with Relay and Fuse Block

🛑 Power Your Brakes with Confidence.

The Vacuum Reservoir is a simple yet critical upgrade for EV builders looking for reliable, consistent brake assist. Pair it with your vacuum pump system and take your braking performance to the next level.