Fleetguard® LF678 spin-on lube filter meets or exceeds OE performance requirements and the new challenges of modern engine technology. Engineered to meet or exceed original equipment (OE) performance standards, this heavy-duty, full-flow spin-on oil filter is built to handle the rigorous demands of modern diesel engine technology. Cross-Reference GuideEnsure a perfect fit for your equipment. The Fleetguard LF678 directly replaces or corresponds to the following major part numbers: Ryco: Z32 Donaldson: P550020 Baldwin: BT259 Mann Filter: W936/4 John Deere: RE506575, RE507204, AR58956, AT19044T, T19044, T19044T Caterpillar: 9Y4450, 3I1089 Renault: 7701456922, 6005012109 Motorcraft: FL175 Bobcat / Clark / Melroe: 6511730 Featuring advanced filtration media, the LF678 traps up to 95% of harmful contaminants before they can reach critical engine components. Whether managing an agricultural tractor, a commercial fleet, or marine and industrial power systems, this filter provides robust protection against engine wear, reduces maintenance downtime, and extends overall engine life. Key Benefits & Features Premium Engine Protection: High-efficiency full-flow media guards against abrasive contaminants throughout the entire service interval. Heavy-Duty Shell: Built with a durable metal canister designed to withstand high pressure and harsh operating environments. Dependable Fit & Seal: Includes a high-grade gasket engineered to prevent leaks under intense operational heat. Versatile Applications: Widely utilized across industrial, agricultural, and marine equipment, including mid-range John Deere PowerTech systems and small-bore Caterpillar engines. Technical Specifications Filter Type: Full-Flow Spin-On Oil Filter Efficiency: 95% Thread Size: 13/16-16 UNS-2B Overall Length: 138.23 mm (5.44 in) Outer Diameter: 93.12 mm (3.67 in) Gasket Outer Diameter: 71.98 mm (2.83 in) Gasket Inner Diameter: 62.53 mm (2.46 in) Bypass Valve (BPV) Opening: 152 kPa (22 PSI) Anti-Drainback Standpipe: No
