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The Best Automotive Replacement Vacuum Pump Relays

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

A vacuum pump relay is a critical component in your vehicle's emissions control system. It manages the operation of the vacuum pump, which is essential for various functions including HVAC controls and cruise control. Ensuring you select a high-quality replacement relay can prevent costly repairs and maintain your vehicle's optimal performance.

Looking for the best Automotive Replacement Vacuum Pump Relays?

Discover now our comparison of the best Automotive Replacement Vacuum Pump Relays. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Vacuum Pump Relays are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Vacuum Pump Relays in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1
GM Genuine Parts 84129871 Vacuum Pump Relay
  • Restore vehicle function for optimal vehicle performance
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
No. 2
Mydracas 28146 Electric Vacuum Pump Switch & Relay Kit for Brake Booster - Normally Open Pressure Sensor with...
  • 【Complete Control Kit for Your Brake Vacuum System】This bundle includes both the essential 28146 vacuum switch and the 28146 relay, providing a comprehensive solution to manage your electric vacuum pump. Ensures your brake booster receives consistent...
  • 【Automatic Adjustment System】The vacuum pressure switch features a preset activation/deactivation point (typically 18-22 inHg). It automatically turns the pump on when vacuum drops and shuts it off once sufficient vacuum is reached, preventing the...
  • 【28146 Relay for Circuit Protection】The included 28146 relay is designed to handle the high current draw of your electric vacuum pump. By using this relay, you protect your vehicle's wiring, ignition switch, and the vacuum switch itself from...
  • 【 Easy Installation with Clear Wiring Guide】Installation is straightforward with the included relay wiring diagram. Terminals are clearly defined for connection to the vacuum switch, positive battery source, pump motor, and ground.
  • 【Durable design】Both components feature robust construction.Built to withstand the harsh conditions under the hood, this kit offers a reliable, long-lasting upgrade for your braking system.
No. 3
Mydracas 28146 Relay Replacement Electric Vacuum Pump Relay for Brake Booster VacuumPump Kit (Automatic...
  • High Load Capacity – Rated at DC 12V 20A, this relay is designed to handle high-current applications, ensuring stable and reliable performance for automotive, industrial, and household use.
  • Durable Construction – Built with high-quality materials and precision engineering, the 28146 relay offers excellent heat resistance and long-lasting durability even under continuous operation.
  • Wide Application – Ideal for use in cars, motorcycles, lighting systems, horns, water pumps, and various DIY electronics projects requiring a 12V DC power relay.
  • Easy Installation – Features standard pin configuration and compact design, making it easy to install and replace in most relay sockets and wiring harnesses.
  • Safe & Reliable – Equipped with built-in protection against voltage spikes and short circuits, ensuring safe operation and protecting your equipment from electrical damage.
No. 6
Wells WVE Vacuum Pump Relay Compatible with Dodge Durango 3.6L V6 2013
  • This Wells WVE Vacuum Pump Relay is compatible with Dodge Durango 2013 3.6L V6
  • Genuine Wells WVE Parts
  • Includes original packaging and hardware
  • Direct replacement auto parts
  • Confirm vehicle fitment with Amazon Confirmed Fit
No. 7
Wells WVE Vacuum Pump Relay Compatible with Jeep Grand Cherokee 3.6L V6 2013
  • This Wells WVE Vacuum Pump Relay is compatible with Jeep Grand Cherokee 2013 3.6L V6
  • Genuine Wells WVE Parts
  • Includes original packaging and hardware
  • Direct replacement auto parts
  • Confirm vehicle fitment with Amazon Confirmed Fit
No. 8
Generic Brake Vacuum Pump 12V Switch & Relay vacuum pump - 2 year warranty
  • Works with 28146 pumps and other similar vacuum pump systems.
  • 100% Tested: Each unit undergoes rigorous testing to ensure reliable performance. Relay Specifications:
No. 10
Secondary Air Injection Pump Relay Compatible With Hummer H3 3.5L L5 2006 2007 PC-856893
  • Includes 1 (One) Secondary Air Injection Pump Relay
  • Fits list of vehicles in image gallery fitment chart
  • Exceptional Quality and Performance: This OE replacement secondary air injection pump relay is designed to meet, if not exceed, the performance and quality standards of the original equipment installed on your vehicle. Experience the same high-level...
  • Direct Replacement, No Fuss: This OE replacement secondary air injection pump relay is meticulously designed for your specific vehicle's make and model, promising a direct fit. Installation is as straightforward as it gets - no fuss, no complications...
  • Perfect Compatibility: Compatibility is key. Make sure to check our product specifications (in image gallery) to confirm that this OE replacement secondary air injection pump relay matches your vehicle's requirements. Get the perfect fit and optimal...

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Last update on 2026-04-17 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Automotive Replacement Vacuum Pump Relays

Understanding Your Vehicle's Needs

Before purchasing a replacement vacuum pump relay, it is crucial to identify the exact part number required for your specific vehicle make, model, and year. Consulting your owner's manual or a trusted automotive parts database is the most reliable way to ensure compatibility. Using an incorrect relay can lead to system malfunctions or damage to other components.

Key Features to Consider

When evaluating replacement relays, look for features that indicate durability and reliability. High-quality materials, such as robust plastic casings and corrosion-resistant terminals, are essential for longevity in the harsh automotive environment. Ensure the relay meets or exceeds original equipment manufacturer (OEM) specifications for performance and fit.

Installation and Compatibility

While many vacuum pump relays are designed for straightforward plug-and-play installation, it is always wise to verify the connector type and pin configuration match your vehicle's existing wiring harness. If you are not comfortable performing automotive electrical work, professional installation is recommended to avoid errors. Always disconnect the vehicle's battery before beginning any electrical work.

Brand Reputation and Warranty

Opt for relays from reputable manufacturers known for their automotive electrical components. A good warranty can offer peace of mind, reflecting the manufacturer's confidence in their product's quality and lifespan. Researching user reviews can also provide valuable insights into real-world performance and reliability.

Frequently Asked Questions

What does a vacuum pump relay do?
A vacuum pump relay acts as an electrical switch that controls the power flow to your vehicle's vacuum pump. It ensures the pump operates only when needed, which is vital for maintaining vacuum pressure for various systems.
How do I know if my vacuum pump relay is failing?
Symptoms of a failing relay can include issues with climate control (vents not switching correctly), cruise control not engaging, or a check engine light illuminating. A faulty relay may also produce clicking noises or fail to activate the vacuum pump.
Can I use a universal vacuum pump relay?
While universal relays exist, it's generally best to use one specifically designed for your vehicle's make and model. Universal relays may not have the correct specifications or connector type, potentially leading to compatibility issues or system damage.
What is the difference between an OEM and an aftermarket relay?
OEM relays are manufactured by or for the original vehicle manufacturer and are guaranteed to meet their specifications. Aftermarket relays are made by third-party companies and can vary in quality, though many offer excellent performance and value.
How long do vacuum pump relays typically last?
The lifespan of a vacuum pump relay can vary depending on the quality of the unit and the operating conditions within the vehicle. However, with proper functioning and protection from extreme temperatures or moisture, they can last for many years and thousands of miles.