High-quality strainer for 18.5mm diameter oil pickup pipe Suitable for all 1969-onwards Type-1 based aircooled engines Ensures smooth engine operation and longevity This Forst Oil Strainer Filter is specifically designed for standard 1200-1600cc Type-1 based aircooled VW engines with an 18.5mm diameter oil pickup pipe. Compatible with all 1969 and onwards models, it plays a crucial role in filtering impurities and particles before they can be sucked into the oil pickup pipe in the sump. As the only oil filter on a standard 1200-1600cc engine, it's essential that this strainer remains clean and in good condition.