These lines are to replace the typical high mileage expensive leaky OEM HPOP lines that have the STC fittings. Kit comes with 3 hoses and all necessary fittings to eliminate the quick connect fittings (STC) on the heads and the HPOP itself.
- All new Genuine Parker Triplelok™ fittings
- DuPont Teflon™ lining just like OEM
- Burst pressure rating of 16,000psi
- Working temperature rating of 400*F
- Nominal working pressure is 5000psi
- High quality Viton™ o-rings
- MADE IN THE USA
The HPx line connects the two heads to help balance the high pressure oil system in each head. It does not create more horsepower, but the majority of owners see a slight to significant decrease in engine idle noise. This is due to the helmholtz resonance that is created from the injectors firing so quickly, and the HPOP cannot react quick enough to balance/absorb on its own from back pressure spikes within the system. So when the tiny spikes happen, the HPx line sends the pressure back and forth through the heads instead of hammering on the pump itself.
Disconnect the battery grounds before installation to avoid accidentally arc'ing the line on the glow plug relay or the alternator charging lug. Use the pictures on this page for reference. The lines are marked "PA" for passenger head and "DR" for driver head. After installation, be sure there is no other lines/wires that are touching the lines that could potentially rub through and damage either the hpop line or the other line that may be touching it. Use a small section of wire loom protector or a larger piece or rubber hose to wrap around the contact point. Although it is not necessary as there is room on the driver side, but the eyelet for engine removal may need to be slightly bent in using a large prybar through the eyelet hole bending it towards the fuel bowl. Do not use any thread sealant on any of the fittings, except on the pump. IF you choose to use any, use Loctite 680 or 620 retaining compound (green), but it is not necessary. If you are unsure of installing yourself, seek out a competent and qualified technician to install the lines.
Pump Fittings: 28FT/LBS • Head Fittings: 23FT/LBS • Hose Ends: 21FT/LBS *AND REMOVE THE SPRING CHECKS IN THE PUMP UNDER THE STOCK FITTINGS*
Warranty is limited to manufacturer warranty. This information can be found directly on the manufacturers website.
All Price Diesel Performance engines and transmissions carry a 2 year unlimited mileage warranty.
*See warranty page for additional details and policy.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
ALL returns are subject to a 30% restocking fee.
To start a return, you can contact us at firstname.lastname@example.org. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at email@example.com.
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
Orders Over $99