5313BB x 1. This is the auxillary wiring harness  for overdrive equipped vehicles, suitable for all XK140's (Left Hand Drive or Right Hand Drive) using the double relay system. Use also for single relay system and discard any extra wires.

Please see our part number 9187 for the XK140 Illustrated Wiring Diagram Booklet - showing individual circuits for easy fitment of the harness. We are able to also supply a plastic braided harness if you want a more cost effective alternative. Please see our part number 5310, sometimes shortened and referred to as a PB wiring loom. These PB looms are made to the same unbeatable quality but in a more cost effective finish.

This reproduction loom is remanufactured in the UK to top British Standards, they even manufacture the wire strand to correct spec.

We recommend that harnesses are fitted by qualified Electricians conversant with Positive Earth wiring systems and 1950s Lucas period wiring techniques. Our part number for the PB (Plastic Braided) wiring harness is 5310.

ALL LOOMS ARE MADE TO HIGH QUALITY, BUT REMEMBER THE XK IS DESIGNED FOR A MAX OF 35 AMP, SO ANCILLARIES MAY REQUIRE ADDITIONAL WIRING.

If you require that original look for your classic XK140, please see our part number 5311 for the fully braided loom.