Best Anti Theft Relays: Top Picks to Keep Your Car Safe

1. CHADWICK Relay-Shaped Automobile Hidden Lock, Relay Style Anti-Theft Device, 12V Vehicle Immobilizer System, Car Intelligent Oil Circuit Controller (501A)

The CHADWICK Relay-Shaped Hidden Lock is a 12V anti-theft device for gasoline cars. Choose Model A or B to match your car’s relay type for secure oil circuit control.
Installation is quick and won’t harm your car’s wiring. It blocks the engine from starting by cutting the fuel or power circuit.
It automatically cuts fuel when the engine stops and reconnects when you return. The engine stops in 25 seconds without a remote signal. Replacing the relay adds a 3–5 second delay.

2. CHADWICK Relay-Shaped Automobile Hidden Lock, Relay Style Anti-Theft Device, 12V Vehicle Immobilizer System, Car Intelligent Oil Circuit Controller (501B)

The CHADWICK Relay-Shaped Automobile Hidden Lock is a smart anti-theft device for your car. It works as a 12V vehicle immobilizer, stopping thieves from starting your engine. Make sure to check your car’s relay type before buying.

This device is easy to install and won’t damage your car’s wires. It only controls the oil circuit, not doors or lights. It’s perfect for 12V gasoline vehicles.

After turning off the engine, it cuts off fuel automatically. When you’re close to your car, it opens the oil path again. The sensing distance is about 15 meters.

3. American Autowire Anti-Theft Relay Kit

The American Autowire Anti-Theft Relay Kit is a simple, effective way to protect your vehicle. It deactivates the starter cranking circuit, making it harder for thieves to start your car. This added layer of security gives you peace of mind.

This anti-theft kit is easy to install and works with most vehicles. It does not require any special tools or technical expertise.

With the American Autowire Anti-Theft Relay Kit, you can rest assured that your vehicle is more secure. It’s a smart investment for any car owner who wants to protect their property.

4. Geradepart RY-612 Anti-Theft Relay Fit for Dodge Fit for Ford Fit for Jeep Fit for Ram 1500 Van 2500 3500 Explorer Sport Trac Grand Cherokee 95-03, 1R1057 1R1065 E6LB-9C392A-A F4SB-14B192-A

This Anti-Theft Relay fits Dodge, Ford, Jeep, Ram, and Cadillac vehicles. It replaces many OE part numbers like RY-612, 1R1057, and E6LB-9C392A-A. Use it for 1995–2003 models, including vans and trucks.

It works in Ram 1500, 2500, 3500 vans from 1996–2003. For Ford, it fits 1995–2002 Explorer and 2001 Explorer Sport Trac.

For Jeep, it suits 1995–1996 Grand Cherokee. Cadillac models like 1995–1999 DeVille and Eldorado also use this relay.

5. Anti-Theft Relay Compatible With Nissan Xterra 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 P-4893018

This anti-theft relay is a direct fit for Nissan Xterra models from 2000 to 2015. It ensures simple installation with no extra steps or modifications needed.

Exceptional Quality: Matches or beats original equipment standards. No Modifications Needed: Plugs in easily for a secure fit. Check Fitment Chart: Confirm compatibility with your vehicle using the image gallery.

6. Geradepart RY-412 Anti-Theft Relay Fit for Infiniti Fit for Nissan 200Sx 240Sx Altima Frontier J30 Maxima Pathfinder Q45 Sentra 95-02, 1R1180 1R1312 1R1559 25230-0B015 25230-79963

This Anti-Theft Relay fits Nissan and Infiniti cars from 1995 to 2002. It replaces OE part numbers like RY-412, 1R1180, and more.

It works with 1996-1998 200SX and 240SX cars. Fit 1996-2002 Altima, 1998-1999 Frontier, and 1995-2000 Maxima models. This relay also fits 1998-2000 Pathfinder and 1999 Sentra vehicles.

For Infiniti cars, it fits 1995 J30 and 1996-1999 Q45 models. The IP129-rated seal blocks dust, water, and moisture. High-temp PA208 plastic and precision copper terminals ensure long life.

7. Replacement Anti-Theft Relay for 1996-2001 Cadillac DeVille, Eldorado, Seville

Keep your Cadillac running smoothly with this anti-theft relay replacement. It’s designed for 1996-2001 DeVille, Eldorado, and Seville models. The 6-blade terminal ensures a perfect fit.

This part meets OE standards for quality and reliability. It’s made with modern tooling and durable materials. You get a better product than the original.

Installation is quick and easy. It’s a direct replacement for your factory unit. Each relay is road-tested for top performance.

8. 12V Remote Switch Wireless, Malictele DC12V/24V/48V/72V 30A Relay RF Control Switch with 328ft Long Range for Anti-Theft Alarms Security Systems luminaire Roller Lind Door Motor

The 12V Remote Switch Wireless is a powerful and versatile solution for controlling devices. It works with 12V to 72V DC systems and handles up to 30A, making it ideal for high-power appliances. Its strong 433MHz signal ensures reliable control, even through walls.

Easy to install, no pairing needed. Just connect and use. Works up to 328 feet away.

Perfect for home, outdoor, and industrial use. Control lights, motors, alarms, and more with four operating modes. Simple, reliable, and ready for any task.

9. WVE by NTK 1R1380 Anti-Theft Relay, 1 Pack

The WVE by NTK 1R1380 Anti-Theft Relay is a reliable and high-quality component for your vehicle. It controls high-amperage current with a low-current switch, ensuring efficient and safe operation.

This relay is designed to meet or exceed OE specifications, offering perfect fit and function. It works for import and domestic vehicles, providing global coverage. Replace faulty relays to keep your circuit working properly.

10. JD29121ZDC12V Anti-Theft Car High-Power Small Relay Five-pin

This anti-theft car relay is compact and powerful. It works with many vehicles and electrical systems.

Durable design handles heavy-duty tasks. It switches high-current loads safely. Easy installation fits most setups without hassle.

Reliable performance lasts long in tough conditions. Universal compatibility suits cars, trucks, and more. Simple integration saves time and effort.