HomeBelts and Cooling > Gaskets and Sealing SystemsFel-Pro 35812 Engine Water Pump O-Ring
Part #: 35812

Fel-Pro 35812 Engine Water Pump O-Ring

⚙️ 22 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, E-350 Super Duty, F-250 Super Duty, F-350 Super Duty, E-350 Club Wagon, and Excursion
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Reliable Engine Water Pump O-Ring for Ford Super Duty Vehicles

The Fel-Pro 35812 Engine Water Pump O-Ring is designed to provide a secure seal for your Ford E-350 Club Wagon, E-350 Super Duty, Excursion, F-250 Super Duty, and F-350 Super Duty models. This premium-grade black O-ring ensures proper sealing to prevent coolant leaks and maintain engine cooling system integrity.

Key Features of Fel-Pro 35812 Engine Water Pump O-Ring

  • Premium grade material for enhanced durability and sealing performance
  • Black color for easy identification during installation
  • Specifically engineered for Ford E-350 Club Wagon, E-350 Super Duty, Excursion, F-250 Super Duty, and F-350 Super Duty
  • Part number 35812 ensures exact fit and compatibility
  • Zero mounting holes for a precise and leak-free seal

Detailed Description of the Fel-Pro 35812 O-Ring

This engine water pump O-ring from Fel-Pro is manufactured to meet strict quality standards, providing a reliable seal between the water pump and engine block. The premium-grade black material resists heat and coolant exposure, reducing the risk of premature failure. Designed without mounting holes, this O-ring fits securely in place, preventing coolant leaks that can lead to engine overheating. Compatible with multiple Ford heavy-duty models, including the E-350 Club Wagon and F-350 Super Duty, this part number 35812 is an essential component for maintaining your vehicle's cooling system.

Common Applications and Issues Addressed

  • Prevents coolant leaks from the water pump seal area
  • Helps avoid engine overheating caused by coolant loss
  • Replaces worn or damaged O-rings in Ford Super Duty water pumps
  • Maintains proper coolant system pressure and flow
  • Ensures long-term reliability of the engine cooling system

Installation Notes and Tips

  • Ensure the water pump and sealing surfaces are clean and free of debris before installation
  • Lubricate the O-ring lightly with coolant or appropriate lubricant to ease installation
  • Verify correct orientation and seating of the O-ring to prevent leaks
  • Inspect the water pump housing for damage or warping before assembly
  • Follow vehicle manufacturer torque specifications when reinstalling the water pump

Quality Assurance and Warranty Information

Fel-Pro manufactures the 35812 Engine Water Pump O-Ring to meet or exceed OEM specifications for fit, form, and function. The premium-grade material and precise manufacturing process ensure consistent performance and durability. While specific warranty details may vary, Fel-Pro products typically come with a limited warranty against defects in material and workmanship, providing confidence in the product's reliability for Ford E-350 Club Wagon, E-350 Super Duty, Excursion, F-250 Super Duty, and F-350 Super Duty applications.

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010FordE-350 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2009FordE-350 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2008FordE-350 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2007FordE-350 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2007FordF-250 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2007FordF-350 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2006FordE-350 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2006FordF-250 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2006FordF-350 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2005FordE-350 Club Wagon6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2005FordE-350 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2005FordExcursion6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2005FordF-250 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2005FordF-350 Super Duty6.0LV8N/A3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2004FordE-350 Club Wagon6.0LV8N/AFrom 09/22/2003; 3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2004FordE-350 Super Duty6.0LV8N/AFrom 09/22/2003; 3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2004FordExcursion6.0LV8N/AFrom 09/22/2003; 3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2004FordF-250 Super Duty6.0LV8N/AFrom 09/22/2003; 3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2004FordF-350 Super Duty6.0LV8N/AFrom 09/22/2003; 3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2003FordExcursionN/AFrom 09/22/2003; 3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2003FordF-250 Super DutyN/AFrom 09/22/2003; 3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter
2003FordF-350 Super DutyN/AFrom 09/22/2003; 3.984 (in) Inside Diameter x 4.262 (in) Outside Diameter

* 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:

4C3Z8507AAK31802K31803

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