Skip to content
8–23 August: reduced summer staffing. Orders may take up to 5 extra working days to dispatch and emails up to 2 working days to answer. Thanks for your patience.
8–23 Aug: orders may ship up to 5 days later.

PRC4879 - Master Switch

- €134,50
€134,50
€134,50 - €134,50
€134,50
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Battery Master Switch - a hand-operated rotary battery isolator that disconnects the battery from the vehicle's electrical system.

Turning the switch breaks the main battery feed to fully isolate the electrical system for security, storage or maintenance work. The metal-bodied unit carries the full starting and charging current, rated to 150A continuous with a high short-duration cranking capacity, and mounts on 65 mm fixing-hole centres.
Vehicle Model Land Rover Defender up to 2016
Alternative Codes
PRC4879

In stock 1 unit
1 · Gouda 0 · Drachten
Express delivery available

When will my order arrive?
  • Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
  • UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
  • Netherlands / Belgium / Germany: 2–4 working days.
  • Other EU countries + UK: 4–8 working days.
  • Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the PRC4879 master switch and what does it do?
The PRC4879 is a hand-operated rotary battery master switch, a battery isolator that disconnects the battery from the vehicle's electrical system. Turning it breaks the main battery feed to fully isolate the electrics for security, storage or maintenance work.
Which Land Rover does the PRC4879 battery master switch fit?
The PRC4879 battery master switch fits the Land Rover Defender (up to 2016). It's typically mounted near the battery and carries the full starting and charging current, letting you isolate the electrical system completely when the vehicle is stored or worked on.
Can the PRC4879 master switch be fitted at home?
Typically yes. The isolator wires inline on the main battery lead, so fitting usually means mounting the unit and connecting the heavy battery cable to its terminals. Disconnect the battery first and make sure the high-current connections are clean and tight.