Upgrade your JB4 professional / pinout
harness to a plug and play harness with this upgrade kit.
Includes complete new harness including power wire adapter
ready to mate to your JB4 board. A $150 core charge is added
which will be refunded upon return of your original pin out
harness to the address on our contact us page. Please note
this harness upgrade is not compatible with the JB3 board.
BMS JB4 Plug & Play Harness Upgrade
Only$180.00 + $150.00 core charge Not Available in California. Worldwide Shipping Available. Estimate Shipping by adding to cart and entering in your ZIP code or country.