ECS red Kevlar-reinforced accessory belt (water pump/alternator) for the classic BMW M50/M52/S50/S52 straight-six. Kevlar reinforcement resists stretch/elongation over time and holds up better to shock loading than a standard rubber belt, tested to JASO/SAE standards for heat, oil resistance and flex life.

Fitment: BMW 3 Series/5 Series, E36/E39/E46 chassis with M50/M52/M54 engines (confirm exact belt length at checkout).