Fram PS8689 Spin-On Fuel Water Separator Filter for Cummins Diesel Engines

The Fram PS8689 is a heavy-duty spin-on fuel/water separator filter engineered for Cummins diesel engines commonly found in medium-duty trucks, buses, motorhomes, RVs, and commercial equipment. This filter protects sensitive diesel fuel injection systems by removing entrained water and particulate contamination before they can reach fuel injectors or the fuel pump.

Key Features:

• Spin-on design for quick, tool-friendly installation and service
• Water separation removes moisture from diesel fuel to prevent injection system damage
• Water-in-fuel (WIF) sensor port with oval-shaped sensor fitment for compatibility with OEM water detection warning systems
• 1-14 threaded inlet for secure, leak-free mounting
• 3.7" outer diameter and 9.38" height compact form factor
• Designed to meet or exceed OEM filtration specifications for Cummins ISB, ISC, ISL, and ISM engine families

Cross-Reference Part Numbers: Cummins 3800394, Fleetguard FS1022, Baldwin BF1272-SP, Donaldson P551022, Donaldson P559583, WIX 33422, NAPA 3422, AC-Delco TP1529, Carquest 86422, Luber-Finer LFF1022, Hastings FF1108-SPS, Big A 95422, Champ FF1108SP, Alliance ABP/N10G-FS1022.

The PS8689 is sold as a single filter and is an ideal maintenance replacement for Cummins-powered commercial trucks, school buses, motorhomes, and heavy construction equipment requiring reliable diesel fuel system protection.