Fuel Filter

Fleetguard FS20040 Fuel/Water Separator Spin-On Filter

Name: Fleetguard FS20040 Fuel/Water Separator Spin-On Filter
Brand: Fuel Filter
SKU: FS20040
Price: 76.95 USD
Availability: OutOfStock

The Fleetguard® FS20040 is a spin-on fuel/water separator designed to remove water and contaminants from diesel fuel before they reach critical fuel system components. Its durable spin-on design allows for quick replacement while providing reliable protection for heavy-duty diesel engines.

The Fleetguard® FS20040 fuel/water separator spin-on filter helps maintain clean fuel delivery by removing harmful contaminants and water from diesel fuel. Clean fuel is essential for protecting injectors, fuel pumps, and other precision-engineered components found in modern diesel engines.

Built with durable cellulose filtration media, the FS20040 provides dependable filtration performance while maintaining proper fuel flow. Its spin-on design makes servicing simple and efficient, helping reduce maintenance time and vehicle downtime.

Designed for commercial trucking, construction equipment, agricultural machinery, and other heavy-duty diesel applications, the FS20040 helps support fuel system reliability and long-term engine performance.

SKU:FS20040

Category: Fuel/Water Separators

$76.95 USD

Sale Sold out

Specification	Value
Part Number	FS20040
Filter Type	Fuel/Water Separator
Style	Spin-On
Media Type	Cellulose
Outside Diameter	4.27 in (108.36 mm)
Gasket OD	3.94 in (99.95 mm)
Gasket ID	3.56 in (90.55 mm)
Thread Size	1-14 UNF 2B
Rated Flow	2.01 GPM (7.60 L/min)
Filtration Efficiency	24.6 Micron @ 98.7%
Hydrostatic Burst Minimum	15 PSI (103.45 kPa)
Test Specification	SAE J905
Applicable Region	Global

Removes water and contaminants from diesel fuel
Durable spin-on design for easy installation and replacement
Protects fuel injectors and fuel pumps
Cellulose filtration media
High filtration efficiency
Maintains proper fuel flow
Supports fuel system reliability
Designed for heavy-duty diesel applications

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Frequently Asked Questions

Everything you need to know before ordering.

Most diesel engines require oil filter replacement during every scheduled oil change. Always follow the manufacturer's maintenance recommendations.

Fuel filter replacement intervals vary by engine and operating conditions, but many diesel engines require replacement every 10,000–30,000 miles.

You can search by part number, OEM number, engine model, or manufacturer cross-reference. If you're unsure, contact us and we'll help identify the correct filter.

Many diesel engines use a primary and secondary fuel filter system to remove contaminants and protect sensitive fuel injection components.

Yes. Many oil, fuel, air, and coolant filters have equivalent replacements across multiple manufacturers.

Most in-stock orders are processed within one business day and shipped from our warehouse.