Dayco is developing the technology to improve the performance of individual components and subsequently the drive system as a whole with it new HK belt joining its already well established High Tenacity belt solution.

With the growth in the number of vehicles that are fitted with High Tenacity (HT) timing belts as OE the trade is becoming increasingly familiar with the ‘white’ timing belt. Although technicians may not initially be aware, irrespective of the marque to which they are fitted, all OE HT belts are manufactured by Dayco.

Dayco developed the twin spiralled glass-fibre cord technology, which is wound into the core of these belts to give them their high tensional strength and the patented PTFE/cotton fabric coating on their teeth, that reduces friction and pulley wear and gives the HT belt, its instantly recognisable appearance.

New Dayco HK belts encompass the highest level of technological development and feature a new tooth lining fabric and weave that incorporates aramid fibres. This combination achieves extremely high wear performance and greater adaptability to tooth geometry, which makes them particularly effective for high-stress transmission systems.

These belts are now making their appearance in the aftermarket and are included in specific timing belt and water pump kit applications, with the HK suffix in their marking.