A heavy-duty green jacket is impervious to most chemicals and abrasion. It has extraordinary coil memory and extends to 4.6 metres (15ft) with 4 cores of 3mm², 2 of 5mm² and one earth/ground core of 8mm². Two 250mm short tails are fitted (internally crimped) with heavy-duty plugs and cable guards (P/No. 82194).

An extra heavy-duty 8mm² earth/ground wire means these coils can only be used with the heavy-duty SAE plugs and sockets to take full advantage of the increased current carrying capacity.