Best Plastic Car Relays of 2025

Joseph Prokop Avatar
Joseph Prokop
Last Updated: 11 Feb 2025

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Plastic car relays are essential components in modern automobiles that help to control various electrical systems. These relays are made of high-quality plastic material that is resistant to heat and corrosion, ensuring their durability and longevity. They come in different shapes and sizes, and can be used in a wide range of automotive applications. Plastic car relays are designed to switch high currents and voltages, and are commonly used in ignition systems, lighting systems, and power windows. They are an excellent choice for anyone looking to replace worn-out or faulty relays in their vehicle.

At a Glance: Our Top Picks

KASturbo 2PCS 4 Pin DC12V Car Relay Cover #TOP 1
KASturbo 2PCS 4 Pin DC12V Car Relay
ftb score rating icon 9.8
sourcingmap 10pcs 12V DC Relay Socket Harness Cover #TOP 2
sourcingmap 10pcs 12V DC Relay Socket Harness
ftb score rating icon 9.7
Hlyjoon 12V Rearview Camera Power Rectifier Cover #TOP 3
Hlyjoon 12V Rearview Camera Power Rectifier
ftb score rating icon 9.5

Top 5 Plastic Car Relays

#TOP 1

KASturbo 2PCS 4 Pin DC12V Car Relay

5M5T-14B192-EA
KASturbo 2PCS 4 Pin DC12V Car Relay Cover
KASturbo 2PCS Car Relay 4 Pin DC12V 70A Plug In Mount for Mondeo Fiesta Focus Ranger Transit Kuga Explorer C-Max Galaxy S-Max B-Max 5M5T-14B192-EA V23136-J4-X62 Multipurpose Relay

The KASturbo 4 Pin Relay is designed to fit various Ford models from 2005 to 2016, including the Mondeo, Fiesta, and Focus. Made from durable plastic, this relay is resistant to wear and corrosion, ensuring longevity and reliability. Its OEM compatibility with multiple part numbers makes installation straightforward, allowing you to easily replace faulty relays. By choosing this product, you can enjoy a hassle-free experience, knowing it will not easily break or crack during use.

What We Like
Durable plastic construction
Wide vehicle compatibility
Easy installation
Resistant to wear and corrosion
#TOP 2

sourcingmap 10pcs 12V DC Relay Socket Harness

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5Pin-10PCS
sourcingmap 10pcs 12V DC Relay Socket Harness Cover
sourcingmap 10pcs 12V DC 5-Pin 30/40Amp Interlocking Relay Socket Harness Base Style SPDT Black

The sourcingmap Relay Socket is a reliable pre-wired solution for 12V DC applications. With five terminals and a wire length of 130mm, it ensures a stable connection for various electronic installations. The durable plastic material offers high accuracy and dependable performance, giving you peace of mind. Its unique male-female slot design simplifies the connection process, making your installation neat and tidy. This versatility allows you to easily incorporate it into projects like stereo systems, alarm systems, and lighting setups.

What We Like
Durable plastic construction
Easy to connect and install
Versatile for multiple applications
Stable and reliable performance
Pre-wired for convenience
#TOP 3

Hlyjoon 12V Rearview Camera Power Rectifier

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Black
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Hlyjoon 12V Rearview Camera Power Rectifier Cover
Hlyjoon 12V DC Car Rearview Camera Power Relay Capacitor Filter Rectifier Auto Electric Power Rectification Part for Germany American Series Auto

The Hlyjoon Power Rectifier provides a reliable 12V stable power supply for your car's rearview camera, eliminating issues like screen rotation and black screens during reversing. It is specifically designed for German and American vehicles, ensuring compatibility and preventing current discrepancies. Installation is straightforward, connecting easily to your car's reverse light and camera. Constructed with high-quality materials, this rectifier boasts a sturdy and waterproof design, promising long-lasting performance for your reversing needs.

What We Like
Easy installation
Stable power supply
Compatible with German/American cars
Durable waterproof design
#TOP 4

Pack of 2 Heavy-Duty 12V Automotive Relays

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Jd1912
Pack of 2 Heavy-Duty 12V Automotive Relays Cover
Pack of 2 12v 30 a 4-pin Automotive Relays, Car Relays Horn Relay Heavy-Duty Standard Relay Kit for Cars, Trucks, Motorcycles, Compatible with Mondeo

The ertlutw 12V Car Relays are crafted with premium materials for exceptional durability and performance. Their high-quality copper coils and silver-plated contacts ensure excellent electrical conductivity, making them reliable for long-term use. With a universal fit, you can easily install these relays in a variety of vehicles, enhancing their convenience. Additionally, they are versatile enough to power various automotive applications, from headlights to cooling fans, ensuring your vehicle operates smoothly in all weather conditions.

What We Like
Premium quality materials
Easy installation
Versatile for many applications
Reliable long-term performance
#TOP 5

JNNJ Relay Puller Pliers for Car Repairs

JNNJ
JNNJ-Plier
22.5cm x 5.5cm
JNNJ Relay Puller Pliers for Car Repairs Cover
JNNJ Relay Puller Pliers, Car Relay Disassembly Clamp, Battery Terminal Fuse Extraction Remover Tool, Metal Steel Automotive Pliers, Universal Accessories for Most Vehicles' Repairing and Modifing

The JNNJ Relay Pliers are designed to make your automotive repairs easier and more efficient. With a length of 22.5 cm and a wide opening range, you can easily access and remove tightly coupled relays and fuses in your vehicle. Made from high-quality alloy steel, these pliers are durable and resist rust and corrosion, ensuring long-lasting use. The non-slip handle provides a secure grip, making it comfortable for you to work with. Finally, the angled tip allows you to reach into tight spaces without causing any damage to the components.

What We Like
Durable high-quality material
Non-slip comfortable grip
Access to tight spaces
Wide range of applications
Buying Guide Image
Editor's Notes

During our plastic car relay research, we found 306 plastic car relay products and shortlisted 5 quality products. We collected and analyzed 3,336 customer reviews through our big data system to write the plastic car relays list. We found that most customers choose plastic car relays with an average price of £7.57.

The plastic car relays are available for purchase. We have researched hundreds of brands and picked the top brands of plastic car relays, including KASturrboo, Uxcell, Hlyjoon, ertlutw, JNNJ. The seller of top 1 product has received honest feedback from 203 consumers with an average rating of 4.7.

Written by
Joseph Prokop Avatar

Joseph is a seasoned writer who's also passionate about automotive. His passion for automotive care and maintenance fuels his drive for more knowledge in the field. He currently resides in Middlesbrough, where he finds time to write informative contents on automotive. His automotive related articles are quite popular in journals around the world. Joseph continues to use his wealth of experience in the industry to create helpful guides on automotive.