HomeAir and Fuel Delivery > FiltersDorman 904-221 Fuel Water Separator Drain Valve
Part #: 904-221

Dorman 904-221 Fuel Water Separator Drain Valve

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⚙️ 18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, E-350 Econoline, E-350 Econoline Club Wagon, F-250 HD, F-350, and F-250
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Overview of the Dorman 904-221 Fuel Water Separator Drain Valve

The Dorman 904-221 Fuel Water Separator Drain Valve is designed for reliable fuel system maintenance on select Ford trucks and vans. This marine-approved valve offers a durable plastic housing and precise 0.25-inch inlet and outlet thread diameters, ensuring compatibility and efficient water separation for your vehicle.

  • Compatible with Ford E-350 Econoline, E-350 Econoline Club Wagon, F-250, F-250 HD, and F-350 models
  • Inlet and outlet thread diameter: 0.25 inches for secure connections
  • Durable black plastic housing material suitable for marine environments
  • Inlet attachment uses O-ring compression for leak-resistant sealing
  • Overall length of 5 inches for easy installation and fitment
  • Includes valve, 2 screws, 2 O-rings, and handle for complete replacement

Detailed Product Description

The Dorman 904-221 Fuel Water Separator Drain Valve is engineered to provide effective drainage of water from fuel systems, helping to maintain fuel purity and engine performance. Its plastic housing is marine approved, making it suitable for vehicles exposed to harsh environments, including those used in marine or wet conditions. The valve features 0.25-inch inlet and outlet thread diameters, which match OEM specifications for a secure and leak-free fit. The O-ring compression inlet attachment type ensures a tight seal, reducing the risk of fuel leaks. With an overall length of 5 inches, this valve fits neatly within the fuel water separator assembly on compatible Ford models.

Common Applications and Problem Solving

  • Prevents water contamination in fuel systems of Ford E-350 Econoline and F-250 series vehicles
  • Helps avoid engine performance issues caused by water in fuel
  • Reduces risk of fuel filter clogging and damage
  • Supports maintenance of fuel system integrity in marine or wet environments
  • Facilitates easy draining of accumulated water from fuel separators

Installation Notes and Tips

Installation of the Dorman 904-221 valve requires basic mechanical skills and appropriate tools. Ensure the vehicle is turned off and cooled before beginning. Remove the old drain valve carefully, noting the orientation and connection points. Use the included O-rings and screws to secure the new valve, making sure the O-ring compression inlet attachment is properly seated to prevent leaks. Verify all connections are tight but avoid over-tightening to prevent damage to the plastic housing. After installation, test the valve operation by draining a small amount of water to confirm proper function.

Quality Assurance and Warranty

Dorman manufactures the 904-221 Fuel Water Separator Drain Valve to meet or exceed OEM standards for fit, form, and function. The marine-approved plastic housing ensures durability in challenging environments. This part is backed by Dorman's quality assurance processes, providing confidence in its reliability and performance. Warranty details are available through Dorman and typically cover defects in material and workmanship under normal use conditions.

BrandDorman
Part Number904-221
Color/FinishBlack
Housing MaterialPlastic
Inlet Attachment TypeO-ring Compression
Inlet Thread Diameter0.25
Marine ApprovedYes
Outlet Diameter (in)0.25 in
Outlet Thread Diameter0.25
Overall Length (In)5 in
Package ContentsValve; 2 Screws; 2 O-rings; Handle

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1998FordE-350 Econoline7.3LV8N/ATo 1/12/98
1998FordE-350 Econoline Club Wagon7.3LV8N/ATo 1/12/98
1997FordE-350 Econoline7.3LV8N/A
1997FordE-350 Econoline Club Wagon7.3LV8N/A
1997FordF-250 HD7.3LV8N/A
1997FordF-3507.3LV8N/A
1996FordE-350 Econoline7.3LV8N/A
1996FordE-350 Econoline Club Wagon7.3LV8N/A
1996FordF-2507.3LV8N/A
1996FordF-3507.3LV8N/A
1995FordE-350 Econoline7.3LV8N/A
1995FordE-350 Econoline Club Wagon7.3LV8N/A
1995FordF-2507.3LV8N/A
1995FordF-3507.3LV8N/A
1994FordE-350 Econoline7.3LV8N/A
1994FordE-350 Econoline Club Wagon7.3LV8N/A
1994FordF-2507.3LV8N/A
1994FordF-3507.3LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1823629C91DEC021221F5TZ9A153AFWSV103WSV103

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.