Dorman 263-203 Engine Valve Cover Gasket - Right

Dorman 263-203 Valve Cover Gasket

Dorman 263-203 is a right-side engine valve cover gasket for select Ford, Lincoln, and Mercury applications. It is built from rubber/elastomer materials and shaped as a one-piece seal to match original equipment fit, function, and sealing performance.

Key Features

• OE-style valve cover gasket for specified vehicles
• Rubber and elastomer construction in black
• One-piece configuration for a direct replacement layout
• 11 bolt holes for the listed valve cover pattern
• 0.125 in. thickness and 13 in. width
• Designed for long-lasting sealing under high underhood temperatures
• Cross-references Ford 4L2Z6584BA and VS50564R for the same application

Detailed Description

This Dorman valve cover gasket is engineered for the right side of the engine on 2004-2014 Ford E-150, 2004-2014 Ford E-250, 2010-2014 Ford Econoline Van, 2010-2014 Ford Econoline Wagon, 2007-2011 Ford Crown Victoria, 2005-2011 Lincoln Town Car, 2007-2011 Mercury Grand Marquis, 2004-2010 Ford F-150, 2004-2009 Ford F-250, 2004-2006 Ford Econoline, 2004-2005 Ford E-150 Club Wagon, 2004-2005 Ford Explorer, and 2004-2005 Mercury Mountaineer. The Dorman 263-203 gasket is built to restore a proper seal between the valve cover and cylinder head, helping maintain clean engine operation in demanding conditions.

Common Problems This Part Addresses

• Oil seepage around the valve cover perimeter
• Visible oil residue on the engine exterior
• Burning-oil odor from leaks contacting hot engine surfaces
• Loss of sealing integrity from heat-cycled original gaskets
• Maintenance issues caused by a deteriorated valve cover seal

Installation Notes and Tips

Confirm right-side placement before installation and compare the gasket shape, bolt-hole count, and dimensions to the removed part. Clean the sealing surfaces thoroughly and inspect the valve cover and cylinder head for damage, warpage, or old gasket material before assembly. For best results, follow the vehicle service procedure and torque sequence specified by the manufacturer.

Quality Assurance

Dorman designs this gasket to match original equipment fit, function, and performance on the listed vehicles. Its durable material construction is intended to maintain sealing performance under extreme underhood conditions.