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The Dieselsite HPOL73 HPOP Hose Kit is the definitive long-term solution for one of the most common failure points on the legendary 1994–2003 7.3L Powerstroke. The factory quick-connect style hoses and fittings are notorious for leaking and failing over time, which can lead to low ICP, hard starts, and injector performance issues.
This complete kit replaces both problematic OEM lines with heavy-duty stainless braided high-pressure hoses featuring an anti-abrasion coating and all-stainless-steel ends. The result is a much stronger, more durable, and truly leak-proof connection that restores reliable high-pressure oil delivery to your injectors.
Whether you're dealing with existing leaks or performing preventive maintenance during an HPOP service, injector replacement, or high-mileage refresh, the HPOL73 kit delivers peace of mind and long-term reliability for the heart of your 7.3L’s HEUI injection system.
Key Features & Benefits
- Stainless braided high-pressure hoses with anti-abrasion coating for superior strength and durability
- All stainless steel fittings — no more weak quick-connect connections
- Complete kit includes everything needed for both driver and passenger side lines
- Flexible installation — use original oil rail ports or alternate ports (spare O-rings included)
- Eliminates the #1 source of high-pressure oil leaks on 7.3 Powerstrokes
- Critical upgrade for maintaining consistent ICP and injector performance
- Direct fit for all 1994–2003 7.3L Powerstroke engines (OBS & Super Duty)
What's Included
- (2) Stainless braided high-pressure oil lines
- (2) Oil pump fittings with O-rings
- (2) Oil rail fittings with O-rings
- (2) 90° adapters for easier routing
- (2) Spare O-rings for oil rail plugs
Installation Notes
- Important: Discard the check springs from behind the factory fittings — do not reinstall them.
- Two 90° adapters are included for convenient routing options.
- Spare O-rings allow you to plug the original rail ports if you choose alternate connection points.
Fitment
Fits: 1994–2003 Ford 7.3L Powerstroke (all OBS and Super Duty models)
The Dieselsite HPOL73 HPOP Hose Kit is the definitive long-term solution for one of the most common failure points on the legendary 1994–2003 7.3L Powerstroke. The factory quick-connect style hoses and fittings are notorious for leaking and failing over time, which can lead to low ICP, hard starts, and injector performance issues.
This complete kit replaces both problematic OEM lines with heavy-duty stainless braided high-pressure hoses featuring an anti-abrasion coating and all-stainless-steel ends. The result is a much stronger, more durable, and truly leak-proof connection that restores reliable high-pressure oil delivery to your injectors.
Whether you're dealing with existing leaks or performing preventive maintenance during an HPOP service, injector replacement, or high-mileage refresh, the HPOL73 kit delivers peace of mind and long-term reliability for the heart of your 7.3L’s HEUI injection system.
Key Features & Benefits
Stainless braided high-pressure hoses with anti-abrasion coating for superior strength and durability
All stainless steel fittings — no more weak quick-connect connections
Complete kit includes everything needed fo[...]
The Dieselsite HPOL73 HPOP Hose Kit is the definitive long-term solution for one of the most common failure points on the legendary 1994–2003 7.3L Powerstroke. The factory quick-connect style hoses and fittings are notorious for leaking and failing over time, which can lead to low ICP, hard starts, and injector performance issues.
This complete kit replaces both problematic OEM lines with heavy-duty stainless braided high-pressure hoses featuring an anti-abrasion coating and all-stainless-steel ends. The result is a much stronger, more durable, and truly leak-proof connection that restores reliable high-pressure oil delivery to your injectors.
Whether you're dealing with existing leaks or performing preventive maintenance during an HPOP service, injector replacement, or high-mileage refresh, the HPOL73 kit delivers peace of mind and long-term reliability for the heart of your 7.3L’s HEUI injection system.
Key Features & Benefits
- Stainless braided high-pressure hoses with anti-abrasion coating for superior strength and durability
- All stainless steel fittings — no more weak quick-connect connections
- Complete kit includes everything needed for both driver and passenger side lines
- Flexible installation — use original oil rail ports or alternate ports (spare O-rings included)
- Eliminates the #1 source of high-pressure oil leaks on 7.3 Powerstrokes
- Critical upgrade for maintaining consistent ICP and injector performance
- Direct fit for all 1994–2003 7.3L Powerstroke engines (OBS & Super Duty)
What's Included
- (2) Stainless braided high-pressure oil lines
- (2) Oil pump fittings with O-rings
- (2) Oil rail fittings with O-rings
- (2) 90° adapters for easier routing
- (2) Spare O-rings for oil rail plugs
Installation Notes
- Important: Discard the check springs from behind the factory fittings — do not reinstall them.
- Two 90° adapters are included for convenient routing options.
- Spare O-rings allow you to plug the original rail ports if you choose alternate connection points.
Fitment
Fits: 1994–2003 Ford 7.3L Powerstroke (all OBS and Super Duty models)
Q
Jason Pearce • 01/24/2026, 6:18:56 AM
Have you installed this new line set from diesel site? Do you have installation instructions? I did it today they are long, I’d like to know how it was intended to be installed.
A
01/28/2026, 2:07:33 PM
Please contact Dieselsite for specific installation questions. 888-414-3457
Q
rowland mason • 02/17/2026, 7:24:19 PM
I have a problem of the lines being to long. how do i go about this? How were they intended to be installed?
A
02/17/2026, 8:58:53 PM
There are alternate picture in the product that shows routing. If you have further questions please contact Dieselsite for clarity.
Q
Marcus McCord • 06/16/2026, 11:34:09 PM
What pressure rating are the hoses
A
06/17/2026, 1:01:51 PM
If you need an exact figure you probably will need to contact Dieselsite directly. They meet or exceed factory PSI ratings.
5/5 Stars out of 1 Reviews
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Deron Kauble (Clearwater) | June 13th, 2021
I cheaped out and bought some hoses off Amazon. Put the truck together after 7k in upgrades and found the Amazon hoses were crap. I again left the truck down because I did not want to drive it with the crap hoses on it. Ordered these from full force, arrived fast as usual and fit perfectly with no weird kinks and twists in them. 1000 miles on the truck do far and no issues. Lesson learned for sure!
Installation Tips:
- DISCARD THE CHECK SPRINGS FROM BEHIND YOUR FACTORY FITTINGS; DO NOT REINSTALL.
- Two (2) 90° adapters are supplied for your convenience in routing configuration.
- Two (2) spare o-rings are supplied for the oil rail plugs should you choose to relocate.
Proposition 65 Warning Information -
P65Warnings.ca.gov
Fits: 7.3 Powerstroke 1994-2003
Fits: 7.3 Powerstroke 1996-2003
Fits: 7.3 Powerstroke 1999-2003
Fits: 7.3 Powerstroke 1996-2003
Fits: 7.3 Powerstroke 1996-2003