phone: 01392 949012

Exoracing 12v Battery Master Cut Off Isolater Kill Switch

(Inc. VAT)
(Ex. VAT)
(Inc. VAT)
(Ex. VAT)

In Stock | Dispatch Within 1 Working Day

Exoracing free shipping banner
In Stock Products Dispatched Within 24 Hours | Daily Cutoff: 12:30pm
Calculated at Checkout
  • Free Shipping

  • Returns Policy

  • Protected Payments

  • Performance Car Brands

Why Use An Exoracing Battery Cut-Off Switch?

If you leave your car for long periods without driving, get into an accident, have a fuel leak or electrical short, etc., you can pull the key from the killswitch, which will completely isolate all power running between the alternator and battery.

This is incredibly useful as it will instantly cut the engine and any power running from the battery, so it is a must-have on any race car.

If the worst case happens and you end up having a fire, pull the removable key out, and it will disable the fuel pump from running, saving the car from dumping more fuel onto the fire and potentially making it worse.

Our exoracing battery master cut-off switch is simple to install; follow our guide below, and if you're unsure, please contact a mechanic.

The switch has a removable key that allows you to disconnect the battery's power instantly. It also has a 3.3mm hole in it, so you can loop the wire around it or keep it safe so you don't lose it.

This feature is the perfect solution for keeping your vehicle's 12-volt system safe and secure. By choosing our exoracing battery isolator kit, you're investing in a reliable and innovative product that provides peace of mind when storing your vehicle.

We now offer an Exoracing lifetime warranty on our battery cut-off switches, which covers manufacturing defects. We know you'll love the product as much as we do, so we want to offer a risk-free buying experience.

Purchase Includes:

  • 1 x Exoracing Battery Cut-Off Switch
  • 1 x Exoracing Battery Cut-Off Key
  • 4 x Exoracing M8 Nuts
  • 4 x Exoracing Spring Washers
  • 4 x Exoracing Flat Washers
  • 1 x Exoracing Lifetime Warranty

Product Features:

  • Isolates the electrical system
  • Includes a Removable cut off-key
  • Useful as a Security feature
  • Universal m8 terminals to fit most applications
  • Fitment: cars, motorcycles, boats, or anything with a 12v electrical system
  • The full kit weighs only 107g
  • Exoracing lifetime warranty

Exoracing Battery Cut-Off Switch Installation Guide:

Follow the steps below to install your brand new Exoracing killswitch, but remember that you must install this correctly, or it could compromise your electrical system. If you are unsure of the steps below, please get in touch with a professional to install them.

  1. If you use it for motorsports, you must read the rule book of whichever series you are in to ensure you correctly mount it. In this situation, it is better to follow their guidelines.
  2. Once you have found a suitable location for mounting (generally somewhere you can easily access from inside or outside the car very quickly, such as the edges of the dashboard or boot), proceed to the next step.
  3. Remove the battery terminals to ensure no current goes through the car and the positive wire.
  4. Wait for a few minutes for the system to discharge any remaining voltage.
  5. Cut the battery wire in the correct location. Then, strip the wire back to add terminals.
  6. Add terminals to both ends using a crimping tool, connect both of these to either side of the cut-off switch, and tighten correctly.
  7. Next, mount the battery cut-off switch in the location, drill the holes, and nut and bolt each end for a secure fit.
  8. Connect the positive to the battery, and you're all done!
  9. When the red key is in place, current flows through the switch, and when you rotate it counterclockwise and remove the key, all current is stopped in the circuit.
  10. If you get any photos of the cut-off switch installed, please tag us on social media, as we would love to see them! #exoracinguk

Technical Specifications:

Material: Moulded Plastic and Brass Terminals
Base Width: 58mm
Base to Key Height: 74mm
Terminal to Key Height: 108mm
Weight: 107g
Terminal thread: M8x1.5
Mounting Screw Hole Diameter: 6.2mm
Warranty: Exoracing Lifetime Warranty


  • Professional installation is recommended as incorrectly fitting this product can damage your electrical system.
  • Make sure to disconnect the battery correctly before starting installation.
Exoracing lifetime warranty emblem

Exoracing Ltd offers a lifetime warranty against manufacturing defects on this Exoracing Ltd product for peace of mind and a risk-free buying experience! We have 100% faith in our products and know they are of the highest quality, so where most manufacturers offer a year, we decided to offer a massive lifetime warranty.

Exoracing Ltd lifetime warranty will cover repairing, replacing, or store credit to the same purchase value if the part has since been discontinued, at our discretion, for any Exoracing Ltd product that is found defective.

Exoracing Ltd's lifetime warranty policy will only apply if the product was purchased through ourselves or an officially licenced distributor in our network.

This warranty policy is non-transferable and all claims under this policy must be accompanied by the original receipt of sale.