
The Driven Diesel HPOP Gear Access Cover Kit is designed to simplify the removal and reinstallation of the high-pressure oil pump (HPOP) in your 7.3L truck. This kit also provides a convenient oil return location. The cover features a captured o-ring design that eliminates the need for sealant, ensuring the o-ring stays in place during installation. With a #6 female o-ring boss port, it offers an oil return option for twin high-pressure pumps, bypass oil filters, or any other oil drain setup you may need.
Key Features:
- Simplifies HPOP removal and reinstallation
- Captured o-ring design—no sealant needed
- #6 female o-ring boss port for oil return
- Stainless steel installation hardware included
This cover fits all 7.3L trucks, though for 99-03 models or later OBS trucks with the EBV sensor in front of the high-pressure oil reservoir, we recommend the Gear Access Cover Kit with the EBV relocation tube.
Note: The plug shown in some images is no longer included due to lack of use.

The Driven Diesel HPOP Gear Access Cover Kit is designed to simplify the removal and reinstallation of the high-pressure oil pump (HPOP) in your 7.3L truck. This kit also provides a convenient oil return location. The cover features a captured o-ring design that eliminates the need for sealant, ensuring the o-ring stays in place during installation. With a #6 female o-ring boss port, it offers an oil return option for twin high-pressure pumps, bypass oil filters, or any other oil drain setup you may need.
Key Features:
- Simplifies HPOP removal and reinstallation
- Captured o-ring design—no sealant needed
- #6 female o-ring boss port for oil return
- Stainless steel installation hardware included
This cover fits all 7.3L trucks, though for 99-03 models or later OBS trucks with the EBV sensor in front of the high-pressure oil reservoir, we recommend the Gear Access Cover Kit with the EBV relocation tube.
Note: The plug shown in some images is no longer included due to lack of use.