Dorman 904-799 Vacuum Pump

Dorman 904-799 Vacuum Pump for Ford Super Duty

Dorman 904-799 is a pre-assembled vacuum pump built for select Ford Econoline vans and Super Duty trucks. It addresses a common OE failure point by using a welded-on pump shaft end to help keep the pulley and pump assembly together for a more dependable repair.

• Pre-assembled vacuum pump reduces assembly time
• Welded-on pump shaft end helps prevent pulley separation
• Belt-driven design with metal housing
• Barbed vacuum pump connector with threaded terminal type
• Pulley included for a complete replacement assembly
• Standard replacement grade for direct service use

Built for Direct Replacement Service

This vacuum pump is engineered as an OE FIX solution for Ford E-350 Econoline Club Wagon, Ford E-350 Super Duty, Ford F-250 Super Duty, and Ford F-350 Super Duty applications, along with additional Ford van and truck fitments listed below. The Dorman 904-799 design eliminates the need to source and assemble separate pump and pulley components, which helps simplify service on vehicles that use a belt-driven vacuum pump for system operation.

This part cross-references Standard Ignition VCP120 for the same application.

Vehicle Fitment

• Fits 2003 Ford E-350 Club Wagon, wo/Hydro-boost steering
• Fits 1999-2003 Ford E-350 Super Duty, wo/Hydro-boost steering
• Fits 1999-2003 Ford F-250 Super Duty, wo/Hydro-boost steering
• Fits 1999-2003 Ford F-350 Super Duty, wo/Hydro-boost steering
• Fits 1996-2002 Ford E-350 Econoline Club Wagon, wo/Hydro-boost steering
• Fits 1996-1998 Ford E-350 Econoline, wo/Hydro-boost steering
• Fits 1997 Ford F-250 HD, wo/Hydro-boost steering
• Fits 1996-1997 Ford F-350, wo/Hydro-boost steering
• Fits 1996 Ford F-250, wo/Hydro-boost steering

Common Repair Uses

• Vacuum pump shaft loosening or separation
• Loss of vacuum assist in affected Ford truck and van systems
• Time-consuming assembly of separate pump and pulley components
• Need for repair-specific assembly tools during replacement
• Repeat failure from a worn or failure-prone factory-style unit

Installation Notes and Tips

Verify vehicle fitment by year, model, and steering configuration before installation. This pump uses a belt drive, barbed connector, and threaded terminal type, so confirm the existing routing and connection style match the replacement part. The pre-assembled design helps reduce labor during service on Ford E-350 Econoline, Ford E-350 Super Duty, and Ford F-250 Super Duty applications.

Quality Assurance

Dorman designs this vacuum pump as a standard replacement with an upgraded welded shaft end to improve assembly integrity over the original failure-prone configuration. The metal housing and pre-assembled construction support a professional repair on the listed Ford applications.