High Pressure Oil Pump HPOP Hoses Lines & Crossover Line Kit for

The YOURSME High Pressure Oil Pump (HPOP) Hoses Lines and Crossover Line Kit replaces factory high-pressure oil lines on late-model Ford 7.3L Powerstroke diesel vehicles. It serves truck owners who need to replace aging factory lines with a setup designed to route cleanly and handle the severe hydraulic pressures generated by the 7.3L injection system.

The system centers on multi-layer hoses rated for a 4800 psi working pressure and a 23200 psi minimum burst pressure. With a temperature rating spanning from -50°F to over 260°F, the lines safely manage hot engine oil, which operates below 225°F under normal conditions. The integrated heat shielding adds substantial thermal defense, providing continuous protection up to 1100°F and intermittent protection up to 2000°F. The included crossover hose links both cylinder heads directly, equalizing high-pressure oil distribution across the engine while keeping clear of wire harnesses, turbos, and fuel components.

Hardware design focuses on fitment ease and long-term durability. Clear zinc-plated forged steel fittings resist abrasions and aging without weeping over time. Instead of the factory 90-degree STC connectors, this kit utilizes 45-degree ORB-JIC fittings. This design change saves about half an inch of installed height, simplifying routing in a crowded engine compartment.

Keep in mind that this kit is built strictly for 1999 to 2003 Ford 7.3L applications and 1999-up E-Series or Excursion models. It is not compatible with earlier 1994 to 1997 7.3L Powerstroke setups. The kit provides the two primary pump lines, one crossover line, and mounting hardware, so buyers will need their own tools to complete the replacement.

Verdict: This high-pressure oil line kit is an ideal choice for 1999-2003 Ford 7.3L Powerstroke owners looking to replace original factory lines and balance oil pressure between heads. Its high burst ratings, compact 45-degree fittings, and included thermal shielding provide a reliable upgrade for demanding diesel work trucks.

• Working Pressure: 4800 psi
• Minimum Burst Pressure: 23200 psi
• Hose Temperature Rating: -50°F to 260+°F
• Heat Shield Rating: 1100°F Continuous / 2000°F Intermittent
• Fitting Type: 45-degree ORB-JIC (saves 1/2-inch height vs. 90-degree STC)
• Fitting Material: Clear zinc-plated forged steel
• Part Replaced: YC3Z-9J323-E, YC3Z-9J323-F, F81Z-9J323-E
• Warranty: 1-year support

A great fit if you:

• Own a 1999-2003 Ford F-250 through F-750 with the 7.3L Powerstroke engine.
• Drive a 1999 or newer Ford E-350, E-450, E-550, or Excursion with a 7.3L diesel.
• Want to equalize high-pressure oil flow across both cylinder heads.
• Need high-pressure lines with built-in thermal shielding for tight engine bays.

Consider something else if you:

• Drive a pre-1999 Ford 7.3L diesel truck.
• Own a vehicle with a different engine platform.

What vehicles are compatible with this HPOP kit?
It fits 1999-2003 Ford F-250, F-350, F-450, F-550, F-650, and F-750 trucks with the 7.3L Powerstroke engine, as well as 1999-up E-350, E-450, E-550, and Excursion models with 7.3L engines.

What factory part numbers does this kit replace?
This kit directly replaces original part numbers YC3Z-9J323-E, YC3Z-9J323-F, and F81Z-9J323-E.

What is included in the package?
The kit comes with two HPOP hose lines, one oil crossover line, and all the required installation fittings.

What are the pressure and temperature ratings of the hoses?
The lines have a working pressure of 4800 psi and a minimum burst pressure of 23200 psi. They are rated for temperatures from -50°F to 260+°F, with heat shields providing continuous protection up to 1100°F.