OEM Hatz Fuel Filter 01635210 This genuine OEM fuel filter is engineered for Hatz diesel engines, ensuring optimal fuel system performance and engine longevity. Compatible with popular Hatz engine models including 1B20, 1B30, 1B40, and 1B50, this filter delivers reliable contamination removal and consistent fuel flow. Designed to OEM specifications, it provides superior filtration protection for your equipment. Replace regularly to maintain peak engine efficiency and prevent costly damage from fuel impurities. Trust the original part for dependable performance.