The JCB Stabiliser Harness Part No 721/G8007 The JCB part number 721/G8007 is the Stabiliser Harness EN15000, an electrical wiring harness used on certain JCB Loadall telehandlers equipped with stabilisers and EN15000 load safety systems. Part Details Part Number: 721/G8007 Description: Stabiliser Harness EN15000 Application: JCB Loadall / Telehandler models with stabiliser legs and EN15000-compliant load control systems Function: Connects sensors and electrical controls for the stabiliser system to the machine's main wiring loomThis harness may be used on selected JCB Loadall models such as: 535-95 535-125 540-140 540-170 541-70.