Alliant Power AP0028 Stand Pipe & Front Port Plug Seal Kit

The Alliant Power AP0028 is a complete seal kit for the stand pipe and front port plug (dummy plug) on 2003–2007 Ford 6.0L Powerstroke engines. These are two of the most common leak points in the high-pressure oil system and a frequent cause of hard hot starts, low ICP, and long cranking times.

Ford and Navistar no longer sell the individual seals, forcing you to buy complete stand pipe and port plug assemblies. This Alliant kit gives you a far more affordable and practical solution.

What’s Included

• 2 Small high-pressure D-rings
• 2 Medium high-pressure D-rings
• 2 Large high-pressure D-rings
• 1 Large backup ring
• 2 Medium backup rings

Key Details

• Reseals one side only — two kits are required to do both cylinder heads
• Compatible with both old-style and new-style stand pipes and port plugs
• Works with one-piece and two-piece stand pipe designs
• Direct replacement for OEM part numbers W302209, W301386, and W301390

Vehicle Fitment

• 2003–2007 Ford F-250 / F-350 / F-450 / F-550 Super Duty
• 2003–2007 Ford Excursion
• 2004–2010 Ford E-Series
• Also fits 4.5L LCF, VT275, VT365, and MaxxForce 5 engines with the wavy oil rail

Restore proper ICP pressure and eliminate those frustrating hard starts without replacing expensive components. Alliant Power quality with a 2-year unlimited mileage warranty.