LF9009 FS1003 FF5636 Oil Fuel Filter Water Separator For Cummins ISC 8.3L 9.0L

Oil Fuel Filter Water Separator for Cummins

This Oil Fuel Filter Water Separator cross-references part numbers LF9009, FS1003, and FF5636, and removes water and solid contaminants from diesel fuel to protect the high-pressure injection system on Cummins ISC 8.3L and 9.0L engines.

Overview

This Oil Fuel Filter Water Separator combines filtration and water separation in a single canister designed for Cummins ISC diesel engines. The Oil Fuel Filter Water Separator uses multi-layer media to capture 10-micron particles while coalescing water droplets for drain-off, and regular replacement of the Oil Fuel Filter Water Separator prevents injector wear and microbial growth.

Built For Performance

• 10-micron absolute filtration rating traps harmful particles
• Advanced water-separating media coalesces and drains water to prevent fuel system corrosion
• Heavy-gauge steel canister with corrosion-resistant coating withstands high-pressure spikes
• Factory-set bypass valve protects engine should filter become clogged
• Pre-lubricated spin-on design with integrated gasket for tool-free installation
• Cross-references LF9009, FS1003, FF5636 ensuring dimensional and performance match

Fits These Machines

• for Cummins ISC 8.3L engine
• for Cummins ISC 9.0L engine

On-The-Job Use

• Primary fuel filtration for line-haul trucks and buses with ISC engines
• Water removal in high-humidity operating conditions to protect common rail injectors
• Preventive maintenance replacement during 15k-mile service intervals on motorhome and RV applications
• Filtration for off-road equipment such as excavators and stationary pumps powered by ISC 8.3L or 9.0L
• Protection of aftermarket performance fueling upgrades by maintaining clean fuel supply

Specs At A Glance

Good To Know

Q: How frequently should I drain the water from this separator? A: Drain the water bowl at every fuel filter change (typically 15,000-20,000 miles) or more often if the WIF light illuminates, to prevent corrosion and injector damage.

Q: Does this filter fit both 8.3L and 9.0L ISC engines? A: Yes, the LF9009/FS1003/FF5636 specification matches all ISC 8.3L and 9.0L models; always verify the mounting thread and canister clearance before installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.