---
product_id: 277425036
title: "Semcto 28146SW Brake Vacuum Switch Vacuum Pump Switch for 12V Electric Brake Booster Electric Vacuum Pump Kit"
brand: "semcto"
price: "7468 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Semcto"
url: https://www.desertcart.is/products/277425036-semcto-28146sw-brake-vacuum-switch-vacuum-pump-switch-for-12v
store_origin: IS
region: Iceland
---

# 12V coil voltage for reliable power Automatic vacuum pressure switch operation Screw terminal connectors for secure fit Semcto 28146SW Brake Vacuum Switch Vacuum Pump Switch for 12V Electric Brake Booster Electric Vacuum Pump Kit

**Brand:** semcto
**Price:** 7468 kr
**Availability:** ✅ In Stock

## Summary

> 🚗 Boost your brake game with precision vacuum control!

## Quick Answers

- **What is this?** Semcto 28146SW Brake Vacuum Switch Vacuum Pump Switch for 12V Electric Brake Booster Electric Vacuum Pump Kit by semcto
- **How much does it cost?** 7468 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/277425036-semcto-28146sw-brake-vacuum-switch-vacuum-pump-switch-for-12v)

## Best For

- semcto enthusiasts

## Why This Product

- Trusted semcto brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pump Life Maximizer:** Built-in check valve prevents constant pump running, extending pump lifespan
- • **Safety-First Design:** Preset pressure switch eliminates manual errors, delivering consistent and reliable brake assist
- • **Secure Installation:** Screw terminals and glued adjustment screw ensure no loosening or leakage under vibration
- • **Precision Vacuum Control:** Automatically activates between 0.04-0.06 MPa for optimal brake booster performance
- • **Plug & Play Compatibility:** Perfect fit for Semcto and popular models like AC Delco and 79 Corvette vacuum pumps

## Overview

The Semcto 28146SW Brake Vacuum Switch is a 12V automatic pressure switch designed to regulate electric brake booster vacuum pumps. It activates the pump between 0.04 and 0.06 MPa, preventing overuse and extending pump life with a built-in check valve. Featuring screw terminal connectors and a glued adjustment screw for secure, leak-free installation, it fits Semcto pumps and popular aftermarket models, ensuring reliable brake assist performance for custom and classic vehicles.

## Description

Buy Semcto 28146SW Brake Vacuum Switch Vacuum Pump Switch for 12V Electric Brake Booster Electric Vacuum Pump Kit: Air Conditioning Line Repair Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works good - I'm using this as a brake vacuum boost pump switch on a custom electric vehicle and it works perfectly. I saw other reviews mention that theirs chatters but mine doesn't chatter at all and works perfectly so far.
Review: Do not buy, not safe!! - This switch is terrible! Worked for about 5 minutes, it stopped working and would not turn the vacuum pump on, I found out when I when to push the pedal and had not brakes. Beware, this is a huge safety risk.

## Features

- ADD A CHECK VALVE - 28146 Vacuum Pump Switch keeps the pump from constantly running and preserves pump life. Vacuum pump After the pump is shut down, vacuum loss occurs. Simply put a check valve between the pump and the switch and your good to go.
- WORKING VACUUM RANGE - Our booster vacuum pump is designed to kick on when the vacuum falls below 0.04 MPa and kicks off around 0.06 MPa.This switch will turn the pump off or on at a preset amount of vacuum.It is a pressure automatic adjustment switch.
- PRESSURE SWITCH AUTOMATIC ADJUSTMENT - To prevent the screw from coming loose in transit, The adjustment screw of the switch has been glued with glue. This range is preset and cannot be adjusted.It will turn the pump off or on at a preset amount of vacuum.
- PERFECT FIT - 28146 Vacuum Pump Switch fit for our electric vacuum pump for brakes,Many customers also like to use it for AC Delco (Hella) vacuum pump and 79 Corvette,etc.
- IMPORTANT TIPS - At the connection, be sure to tighten, otherwise there will be leakage, which will affect the use of the pump.After the correct installation,it works exactly as it's supposed to.If you have any questions, please contact us, we provide warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08QMLQC4C |
| Best Sellers Rank | #907,845 in Automotive ( See Top 100 in Automotive ) #1,532 in Air Conditioning Line Repair Tools |
| Brand | Semcto |
| Coil Voltage | 12 Volts |
| Connector Type | Screw Terminals |
| Contact Material | Copper Alloy |
| Contact Type | Normally Open |
| Date First Available | December 15, 2020 |
| Item Weight | 3.34 ounces |
| Item model number | 28146BP-002 |
| Manufacturer | Semcto |
| Maximum Switching Voltage | 12 Volts |
| Minimum Switching Voltage | 12 Volts |
| Mounting Type | Screw Mount |
| Number of Terminals | 3 |
| Operation Mode | Automatic |
| Package Dimensions | 4.76 x 2.76 x 1.73 inches |
| UPC | 709930351526 |

## Product Details

- **Brand:** Semcto
- **Connector Type:** Screw Terminals
- **Contact Material:** Copper Alloy
- **Contact Type:** Normally Open
- **Mounting Type:** Screw Mount

## Images

![Semcto 28146SW Brake Vacuum Switch Vacuum Pump Switch for 12V Electric Brake Booster Electric Vacuum Pump Kit - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works good
*by T***S on November 20, 2023*

I'm using this as a brake vacuum boost pump switch on a custom electric vehicle and it works perfectly. I saw other reviews mention that theirs chatters but mine doesn't chatter at all and works perfectly so far.

### ⭐ Do not buy, not safe!!
*by L***S on November 14, 2025*

This switch is terrible! Worked for about 5 minutes, it stopped working and would not turn the vacuum pump on, I found out when I when to push the pedal and had not brakes. Beware, this is a huge safety risk.

### ⭐⭐⭐ Works til it doesn’t, I’m on my third one..
*by D***R on November 16, 2023*

I use it for a brakes on a cammed Silverado. I’m on my third one of these due to them failing, I get about a month of use then they fail to work all together. There does not seem to be a better option as the ones from summit have similar issues. My suggestion is buy several, and prepare for sudden brake failure at all times lol!

## Frequently Bought Together

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-24*