Tractor Engineers Limited offers Track Tension and Recoil Assembly. Tractor Engineers Limited is an ISO 14001: 2004 accredited company a wide range of tracking undercarriage, Battle Tank Pins, Apron Feeders and Oilfield Equipment Spares. The Track Tension and Recoil Assembly is available in heavy duty design to protect link assembly and idlers from shock load. The Track Tension and Recoil Assembly comes in spring type design to suit all sizes of undercarriages.