Ultra High Efficiency Hydraulic Oil Filters feature synthetic media which remove a higher proportion of fine particles for optimum contamination control in the most severe applications. Cat UHE Hydraulic Oil Filters are not for Transmission applications. Cat Hydraulic Filters provide the best protection from contaminates and abrasives by keeping them from wearing down the tight tolerances within the high pressure hydraulic system. Cleanliness is the key to maintaining proper lubrication of your sensitive hydraulic system. SPECIFICATIONS Efficiency Rating: Ultra High Efficiency COMPATIBLE MODELS Wheel-Type Loader 993K 994K Off-Highway Truck 793D Pipelayer 587T PL87 587R Wheel Tractor-Scraper 613G 621H 623H 627H Track-Type Tractor D10T