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Driven Diesel 94-97 7.3L High Pressure Crossover (HPX)

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Part Number: DD-73L-HPX-OBS
Availability: In Stock
Instructions: (Adobe Reader required)
Price: $79.95
The Driven Diesel Stainless Steel High Pressure Crossover (HPX) line connects the driver side and passenger side High Pressure Oil Rails together. This results in a more balanced High Pressure Oil system with fewer pressure spikes (see Injection Control Pressure graphs below). In most trucks, the elimination of ICP spikes and balancing of pressures in the High Pressure Oil Rails will smooth operation and may even quiet the engine somewhat.

This line fits 94-97 7.3L Pickups with Stock or "Drop-In" turbochargers. Does NOT fit with T4 Style turbochargers due to interfance with the larger diameter housings.

You will NOT find a better HPX line ANYWHERE...PERIOD!!! The Driven Diesel HPX line is constructed from only the highest quality components. High Grade MIL-SPEC Stainless Steel tubing and aircraft quality steel fittings ensure thousands of miles of trouble-free operation.

BEFORE YOU ASK...YES, this is the same HPX line that was sold under the "KCM Diesel" brand for many years. The owner of KCM Diesel has backed away from doing vehicle work, but he still produces these HPX lines for us, so we can continue to offer our customers a superior product.



The High Pressure Oil System operates from 500psi to over 3000psi. Components of this system must be designed to handle these pressures on a CONTINUOUS basis. In addition to pressure, the high temparatures of the engine oil and underhood environment, high pulsation rate of the high pressure oil system and the general expansion, contraction and vibration of a running Powerstroke make for a tough operating environment. The proper design of a High Pressure Crossover line is far more than just picking some hose with a high enough pressure rating and having some fittings crimped on or bending up a tube and attaching it to the engine! Make sure the HPX line you purchase is an ENGINEERED SOLUTION and not just a "slapped together" hose or tube!

The Driven Diesel S.S. HPX line IS an Engineered Solution, not just a hydraulic hose or randomly bent piece of tubing. The Driven Diesel HPX line is produced for us by KCM. Chris Kersey of KCM has a degree in Manufacturing Engineering with a minor in Metalurgy. He has extensive experience designing and manufacturing MISSION CRITICAL weapons components for the military, both of which were used when designing this HPX line...see below for details:

•Designed by an ENGINEER
•Designed using SOLIDWORKS CAD/CAM Software
•"Stress Analysis" Tested using COSMOS (Now Solidworks Simulation) Software
•Tested for THOUSANDS OF MILES before ever offered for Sale
•Manufactured using High Grade MIL-SPEC S.S. Tubing and Fittings
•THOUSANDS of units in operation Without a Single Design Related Failure!

If you're comparing this HPX line to those offered by our competitors at a lower price, and wondering why this line is more expensive, now you know!

Customer Reviews

(3.88)stars out of 5
# of Ratings: 8
1. on 7/21/2018, said:
5 stars out of 5
Fits perfect, easy install, takes no more than 10 minutes to install, high quality line, far superior than the others on the market, definitely quiets out the clatter, if your OBS doesn't have one yet, then you are doing it wrong.
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2. on 3/19/2014, said:
5 stars out of 5
the hpx tube is a great quality part. the tube is bent well, the fittings are very nice, and the o-rings are the perfect size. I like how it looks in the engine bay and it fit great!
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(4 people found this comment helpful, 0 did not)
3. on 9/19/2012, said:
5 stars out of 5
With a little patience it went on easily and instructions were well written. It seemed to quiet down the motor a little but I mainly wanted this just to keep both oil rails equal on pressure. Great product for the price and quality!!
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(5 people found this comment helpful, 1 did not)
4. on 9/19/2012, said:
5 stars out of 5
Easy to follow instructions and a straight forward installation. There was a noticeable difference in clatter at idle and I do notice a difference in acceleration especially from part throttle.
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(6 people found this comment helpful, 0 did not)
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Frequently Asked Questions

Driven Diesel 94-97 7.3L High Pressure Crossover (HPX) fits the following vehicle(s):

  • 1994 Ford F250/350 OBS 7.3L
  • 1995 Ford F250/350 OBS 7.3L
  • 1996 Ford F250/350 OBS 7.3L
  • 1997 Ford F250/350 OBS 7.3L