Description
Part Number: AF49-2011
Aeroflow Vacuum Pressure Switch (1/8″ NPT / 17″Hg)
The Aeroflow AF49-2011 vacuum pressure switch is designed to trigger auxiliary equipment such as electric brake booster pumps in performance engines suffering from low manifold vacuum.
Key Features
- ☑ Vacuum Set Point: Calibrated to open at 17″Hg vacuum.
- ☑ Thread Fitting: Standard 1/8″ NPT male brass connection for simple installation.
- ☑ Brake System Auxiliary: Ideal for switching electric vacuum pumps in cars with aggressive camshaft profiles.
- ☑ Dual Wiring Options: Equipped with #8-32 screws and 1/4″ male spade terminals.
- ☑ Robust Design: Rated for maximum operating vacuum of 30″Hg and burst pressure of 150 PSI.
Technical Specifications
| Brand | AeroFlow Performance |
|---|---|
| Part Number | AF49-2011 |
| Switch Type | Hobbs-style Vacuum Pressure Switch |
| Set Point | Opens at 17″Hg Vacuum |
| Fitting Size | 1/8″ NPT Male |
| Max Operating Vacuum | 30″Hg |
| Burst Pressure | 150 PSI |
| Terminals | #8-32 Screws & 1/4″ Blade Terminals |
What’s Included in the Box
- 1 x Aeroflow AF49-2011 Vacuum Pressure Switch
- Terminal Mounting Screws (#8-32)
Aeroflow Performance products are built to rigorous motorsport standards. For technical guidance, custom circuit plumbing advice, or fast UK delivery, contact the team at JP Racing.







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