Overview

• Manufacturer: John Deere (OEM)
• Product: RE527961 — Primary and Secondary Fuel Filter Kit; includes both the primary fuel filter and the final/secondary filter for complete diesel fuel filtration
• Purpose: Genuine Deere filtration solution that removes particulates and water from diesel before it reaches the injection system, protecting pumps and injectors and supporting reliable operation in demanding environments
• Filtration ratings within kit: Primary ~10 microns; Secondary/Final ~2 microns
• Typical applications: John Deere engines in the 4045 SFM85, 6068 AFM85, and related SFM85/AFM85 platforms

Key Features

• Part Number: RE527961
• Type of machine suitable for: John Deere diesel engines requiring a combined primary and final fuel filtration kit (10 µm primary, 2 µm secondary); applicable to 4045 SFM85, 6068 AFM85, 6090 AFM85 family
• Installation tips: Install in the correct sequence (primary first, then final); ensure O-rings/seals are in place and lubricated; prime the fuel system and bleed air at service ports until fuel flows steady; perform a leak check after start-up

Compatibility

• Suitable machine models: John Deere engines that use a primary + final fuel filtration kit (e.g., 4045 SFM85, 6068 AFM85, SFM85 6090 AFM85)
• Alternative part numbers: RE525523; cross-reference Racor PFF5551; OEM references listed for this kit include RE525523 and RE527961