Upgrade your flakey, melty, and unreliable E21 fuse box. 

New! Version 2 - Built-in Relays mean solder-free installation. 

Address one of the biggest causes of electrical problems in your classic BMW—the ancient and unreliable torpedo fuses. Our kit upgrades your E21 to modern, reliable blade-style fuses.

• Lower total resistance and won't lose spring pressure over time.
• Modern relays built-in, further improving reliability.
• LEDs show green for any circuit with power; red if the fuse is missing or blown.
• LEDs can be disabled via a switch.
• Includes sockets for four spare fuses.
• Fits under the stock fuse box cover.
• Includes a set of blade-style fuses.

IMPORTANT: This kit requires the modification of the fuse box by removing the torpedo (also called bullet) fuse holders and some excess plastic. You'll also need to drill one hole. Once the torpedo fuse holders are removed the new circuit board drops into the existing slots through the plastic.

Installation Guide

Compatible with all fuse box variants used in E21s!

Compatible part numbers:

• 61131369605
• 61131363935
• 61131358492
• 61131363525
• 61131358669
• 61131369606

 Due to continuous improvement, product may differ slightly from the pictures.