SKP SK90398S Engine Timing Chain Kit - Front

Engine Timing Chain Kit for Ford and Lincoln V8 Applications

The SKP SK90398S engine timing chain kit is a direct-fit timing service component for select Ford, Lincoln, Mercury, and Mazda applications. It is used in engine valve train service where timing chain wear, stretch, or noise has affected engine operation.

Compatible With 2003-2013 Ford Expedition, 2005-2012 Lincoln Navigator, 2004-2010 Ford F-150, and other listed applications with the correct engine configuration.

• Engine timing chain kit for valve train repair
• Fits Ford Expedition, Lincoln Navigator, Ford F-150, Ford Ranger, and related applications listed below
• Direct replacement part number SK90398S
• Cross-references DNJ TK428 for the same application
• Also cross-references Four Seasons 76117 for the same application

Detailed Fitment and Application

This SKP timing chain kit is cataloged for multiple Ford truck and SUV platforms, including the Ford Expedition, Lincoln Navigator, Ford Explorer Sport Trac, Ford F-150, Ford F-250 Super Duty, Ford F-350 Super Duty, Mercury Mountaineer, Mazda B4000, Ford Ranger, and Lincoln Mark LT. The part number SK90398S is listed for front-position applications on several models, while other applications note VVT sprocket not included.

Use this timing chain kit when servicing engine timing components on 2003-2013 Ford and Lincoln V8 applications and related platforms listed in the fitment table.

• Fits 2010-2013 Ford Expedition, N/A, VVT Sprocket Not Included
• Fits 2005-2008 Ford Expedition, N/A, VVT Sprocket Not Included
• Fits 2005-2012 Lincoln Navigator, N/A, VVT Sprocket Not Included
• Fits 2007-2010 Ford Explorer Sport Trac, Front, 21 pcs
• Fits 2003-2005 Ford Explorer Sport Trac, Front, 21 pcs
• Fits 2004-2010 Ford F-150, N/A, VVT Sprocket Not Included
• Fits 2005-2010 Ford F-250 Super Duty, N/A, VVT Sprocket Not Included
• Fits 2005-2010 Ford F-350 Super Duty, N/A, VVT Sprocket Not Included
• Fits 2003-2010 Mercury Mountaineer, Front, 21 pcs
• Fits 2003-2009 Mazda B4000, Front, 21 pcs
• Fits 2003-2008 Ford Ranger, Front, 21 pcs
• Fits 2007 Lincoln Mark LT, N/A, VVT Sprocket Not Included

Common Timing Chain Service Issues

• Timing chain noise or rattling from the front of the engine
• Excessive chain stretch affecting camshaft and crankshaft timing
• Check engine light related to timing correlation faults
• Rough running caused by worn timing components
• Loss of engine performance from inaccurate valve timing

Installation Notes and Tips

Confirm engine code, timing configuration, and model-year fitment before installation. Several listed applications note VVT sprocket not included, so verify whether your repair requires reuse or separate sourcing of that component. Follow factory timing procedures and inspect related guides, tensioners, and sprockets during service.

Quality Assurance

SKP catalogs this timing chain kit as a direct replacement component for the listed Ford, Lincoln, Mercury, and Mazda applications. Verify the part number SK90398S against the vehicle’s engine configuration before ordering.