Mk1 Golf - To fit from chassis numbers. Mk1 Caddy - from chassis 14-E-003 663>> EW, HN engines. Mk1 Golf Cabriolet - from chassis 15-E-011 291>> EW, EX, HN, RE, EWA engines. It ensures efficient coolant flow from the pump into the engine circuit, helping to regulate temperature and prevent overheating.
