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Riffraff Diesel Performance Inc, Engines - Supplies, Equipment & Parts, Eagle Point, OR


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Terminator T500 HPOP

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Part Number:
Core Pre-Ship Only, Turn Around 7-10 Days
* I have read the product description :

Terminator Engineering - T500 HPOP


Tired of your 15º or worn out 17º pump? Need a little more volume for those new injectors?  This Terminator Modded T500 pump is what you need and won't put a dent in your mod budget.

We ship you your pump with all new seals and orings, tested and ready to install.  Please indicate whether you are sending in a 15º or 17º and if it is out of a Super Duty or a OBS. Be sure to include your pump fittings as they will be resealed and sent back with the pump. You do not need to include your IPR with the core.

Click Here for the HPOP Core sheet the must accompany your core return, and must be shipped to the address at the top of the sheet. If your core does not have the core sheet and/or the HPOP line fittings aren't present then your core will be refused and returned. Due to increasing costs mounting gaskets are no longer included, We are sorry for any inconvenience, but we do offer them still for purchase.


Warranty: 2 year

Currently we are only accepting pre-ship orders, which means you have to send a core in first to be built, Terminator modifies it and then ships it back to you

IMPORTANT* Terminator Engineering Terms for pump warranty. If you feel you might have a warranty on your T500 and you have diagnosed it isn't the IPR, Injector poppets, Injector Orings, or IPR Pigtail please send your pump back to Terminator for warranty. If pump is tested and flows Terminator will require you to pay return shipping on your good pump. If it is a confirmed warranty Terminator will correct and return the pump.  This warranty is only a manufacturer warranty and is not serviced or applied through Riffraff Diesel. By checking the box above you are agreeing to abide by these terms that Terminator has set forth.


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Product Reviews

Showing reviews 1-10 of 60 | Next

  1. Not Recommended 1 Star Review

    Posted by on Oct 13th 2018

    I sent my working core in for an upgrade to the T500 received it back and installed the unit, No Start, leaking from Non Serviceable port, sent it back said it was fine, received it back, installed it, No leak, No Start. Pump will not build pressure, beyond 179 Psi, checked everything, all new OEM parts, spent thousands chasing ghosts because they said pump was fine. dead headed pump, shows 345 PSI, wasted thousands of dollars because of sloppy workmanship, should have just gone with a standard part instead of junk in a box.

  2. Killer pump 5 Star Review

    Posted by on Oct 4th 2018

    Highly recommends this pump if you need to preplace your hpop or you just want to upgrade but be aware it comes with a ipr valve so you wont need to order a new.

  3. Great Hpop 5 Star Review

    Posted by on Sep 5th 2018

    Great deal on a hpop.Fixed my 1211 code during hard long hills

  4. Great Replacement Pump solved low ICP on Tuned Stock Injectors 5 Star Review

    Posted by on Aug 26th 2018

    I has having issues with ICP being in the low 2000psi under heavy throttle towing my 13k trailer which caused the EGT to climb causing me to have to lift on an extended pull up a grade. I tried three different tuners 40hp tow tunes with the same results. Pulled the pump and sent it in to be rebuilt into a T-500 and got it back within the same week. Solved my low ICP issue, will now hold commanded ICP throughout the RPM range and EGTs stay in check Truck also feels crisper in that 2,500-3,200rpm range where it use to feel flat. I would recommend this pump.

  5. Stage 2 5 Star Review

    Posted by on Apr 3rd 2018

    This is a quality upgrade that supports my stage 2 injectors and works great. This is by far the most bang for your buck in performance HPOPs!

  6. Unbelievable!!! 5 Star Review

    Posted by on Mar 6th 2018

    Still a work in progress but everything I got from Riffraff is unbelievable!!! I’m not seeing big change in fuel mileage but we will retune after we finish with all of the mods. I see big power gains and it pulls like their is no tomorrow!!! Just pulled an office trailer 775 Miles no problem.

  7. Good investment and worth the money 4 Star Review

    Posted by on Mar 6th 2018

    The stock pump that was in my 95 PSD before was good but was getting tired so I was looking around for a good pump and decided to go with the terminator engineering pump. I was sceptical at first but glad I went the route I did it is well worth the money, I definitely notice a difference in power and boost levels I already have stage one fullforce injectors and it runs them with ease my truck has never ran this good or sounded so healthy.

  8. Best upgrade 5 Star Review

    Posted by on Jan 21st 2018

    I think upgrading the Hpop is the most important upgrade I've done. I have an OBS and from 75% to WOT there was no power gain. Had the same issue at freeway speeds. There was no passing going up a grade. After putting the T500 on, my truck just keeps pulling with tapering off. The turn around was awesome, had my pump back in a week. I live very close to where Terminator is based, so that helped with shipping.

  9. Perfect Upgrade Part 5 Star Review

    Posted by on Jan 1st 2018

    The T-500 is the best option for replacing your HPOP. It provides great oil pressure and volume for running hard. Pulling long hills with this you will not drop oil pressure due to pump volume dropping. Great price and amazing shipping speed too!

  10. Easy Upgrade 5 Star Review

    Posted by on Dec 28th 2017

    Had my pump back in less than 2 weeks from when I sent it in. Runs my Stage 2 injector so much better a full throttle. I don't know why I waited so long. Great price, great pump!

Showing reviews 1-10 of 60 | Next