The DieselSite HX high pressure oil crossover line fits 1999-2003 Ford 7.3L Powerstroke trucks, including Early 1999 models. It connects the left and right high pressure oil rails so injection control pressure is read and shared across both heads.

Balancing the rails evens oil delivery between banks and uses the hose volume as a small accumulator to tame ICP spikes. DieselSite uses a Teflon-lined, stainless-steel braided, anti-static hose and includes a high-temperature loom sleeve for abrasion protection. No core required. This crossover is not required, and should not be used, with a DieselSite Adrenaline HPOP, which already equalizes the rails in the pump.

Key Features & Benefits

• Teflon Lined Braided Hose: High-pressure, high-temperature stainless braided line sized for the 7.3L oil system.
• Shared Oil Rails: Evens pressure between banks for more consistent fueling.
• ICP Stability: The added hose volume helps absorb pressure spikes.
• Abrasion Sleeve: A high-temperature loom cover is included to protect the line.
• Anti-Static Hose: Reduces static discharge that can damage a fluid line.

Technical Specifications

• Manufacturer: DieselSite
• Part Number: HX
• Product Type: HPOP Crossover
• Hose: Teflon lined, stainless steel braided, anti-static
• Included: Crossover line and high-temperature loom sleeve
• Truck Compatibility: 1999-2003 Ford 7.3L Powerstroke, including Early 1999
• Engine Platform: 7.3L Powerstroke
• Core Requirement: No core required

Vehicle Fitment & Technical Installation Notes

Fits 1999-2003 Ford 7.3L Powerstroke engines with a stock-style high pressure oil pump, including Early 1999. This line joins the oil rails and does not replace the pump-to-head HPOP hoses. Do not use it with a DieselSite Adrenaline HPOP.

Installation Tip: DieselSite recommends replacing this crossover, along with the factory HPOP hoses, once a year on trucks running performance tuning, where system pressure commonly reaches 3000 psi.