Our ultra-GM series 21 circuit wire systems feature an easy to install design and allow for expandability for future growth & our Wiring Systems use only the highest quality wire and parts resulting in the ultimate GM universal wiring kit.


Great for any newly built classic 
Holden FE, FC, EK, EJ, EH, HD & HR
Holden HK, HG, HT, HQ, HJ, HX, & HZ
Holden WB Ute & WB One Toner Ute
Holden Torana "all models"
Holden Gemini "all models"
Buick, Chevrolet, Cadillac, GMC, Oldsmobile, Pontiac, Jeep & Many More

To make installation a snap, all our kits included detailed instructions, color-coded and labeled wire, and plug n play connectors.
All GM series harness included extra-long leads making them the idea choice for longer vehicles such as trucks, wagons, and muscle cars!

The harness offers an ultra-small fuse block that can be mounted in any position including under the dash or seat!
Ideal for hot rods, race cars, and custom installations.

1 x 21-Curcuit Wire Harness
1 x 30amp Headlight Circuit Breaker
2 x H4 Headlight Plugs
1 x GM Alternator Plug
2 x Steering Column Plugs
1 x Fire Wall Grommet
1 x Extra Black neg/earth wire
1 x Horn Relay
1 x 100amp Fusible Linked Alternator Cable
1 x 80amp Fusible Linked Battery Supply Cable
1 x Set Ring terminals & Crimp Connectors
2 x Fuse Box Mounting Bolts
1 x Set Cable Ties

Fuse Box Size/Dimensions:
Length::mm x Wide::mm x High::mm

Rubber Grommet Size:
Hole Cut Ring Size:: 30mm
Inner Ring Hole Size:: 25mm
Outer Ring Size:: 38mm

GM Alternator Charging Kit::
100amp Fusible Linked Alternator Charging Cable
Standard GM Holden 2 pin Alternator Plug
Rubber Boot & Eyelet Terminal
Part No :: BWA21KI-GM


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