Restore proper high-pressure oil system sealing on your 7.3L Powerstroke with the SWAG Performance OE HPOP O-Ring Kit. Designed as a direct replacement for Ford OEM kit 2C3Z-9G804-AB, this kit includes the critical seals needed when servicing, resealing, removing, or reinstalling the High Pressure Oil Pump (HPOP) on 1994-2003 Ford Powerstroke diesel engines.
A leaking HPOP seal can cause hard starts, extended crank times, oil leaks in the engine valley, low ICP pressure symptoms, injector performance issues, and poor cold-start operation. Replacing worn or flattened O-rings during pump service helps restore proper oil pressure integrity and prevents repeat failures.
Built for dependable sealing performance under extreme high-pressure oil system conditions, this OE-style kit is ideal for stock daily drivers, work trucks, towing applications, and performance-oriented 7.3 builds.
Common Symptoms of Failed HPOP O-Rings
- Oil leak in engine valley
- Long crank or hard starting
- Loss of ICP pressure
- Injector misfire symptoms
- Hot no-start condition
- Oil residue around HPOP lines or fittings
- Low high-pressure oil system performance
Why Replace the HPOP O-Rings?
The 7.3L Powerstroke High Pressure Oil Pump system operates under extremely high oil pressure. Over time, factory O-rings flatten, harden, crack, or shrink due to age and heat cycling. Even a minor leak can create injector drive pressure issues that affect overall engine performance and reliability.
Replacing these seals while servicing the HPOP is inexpensive preventative maintenance that can save major diagnostic headaches later.
Installation Notes
- Lubricate all O-rings with clean engine oil before installation
- Inspect HPOP fittings and line connections for scoring or damage
- Recommended during HPOP replacement, fuel bowl service, or engine valley repairs
- Professional installation recommended if unfamiliar with 7.3 high-pressure oil systems
