Riffraff Diesel HPOP Bolt Access Cover w/ EBP 99-03
The Patent Pending Riffraff Diesel High Pressure Oil Pump Gear Bolt Access Cover is a robust billet aluminum replacement for the thin factory stamped steel cover. Designed with a Viton® quad-seal O-ring for easy installation and leak-free service, it eliminates the need for messy RTV sealant required by the OEM cover.
Ford has discontinued OEM part number F81Z-9J432-AA. Riffraff Diesel now offers this premium, 100% Made in the USA replacement engineered for superior durability, serviceability, and long-term reliability.
Includes:
- CNC-machined 6061-T6 billet aluminum body
- Custom Viton® quad-seal O-ring
- Multiple anodized color choices
- Stainless steel mounting hardware
- 100% Made in the USA

Note: Anodized finishes may be discolored or damaged by harsh chemical engine cleaners. Clean with mild soap and water only.
Replaces Ford OEM Part Number: F81Z-9J432-AA (Discontinued)
50 Reviews Hide Reviews Show Reviews
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HPOP BOLT ACCESS COVER
Awesome product! Excellent machining and a perfect fit! Definitely purchase the tube, fitting and a new sensor! You will ruin the tube trying to remove it to clean it. These beasts are old. Do it once and do it right!
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Blows the OEM AWAY!!
If you are on the fence about purchasing this, then consider this me blasting you off that fence, because this thing is AWESOME!! Piece of cake installation (relatively considering the spot you have to put it), thick, durable material with a fatty o-ring means no messing around with RTV getting all over the place. All of that and you get to chose what color! I got green :) So what are you waiting for?? Get it now! Your Powerstroke will thank you!
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Hpop bolt access cover 99-03
Another Riff Raff top product
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New Hpop bolt cover who dis?
Found I needed a new Ebpv sensor and tube whilst installing some other quality goods from riffraff so I went ahead and ordered one of these bad boys in green and it’s a shame it’s buried so deep because she’s pretty but aside from that I highly recommend so if you’re in the market, do it! It even makes installing the tube and sensor easier than stock, another beautiful piece from RR
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hpop cover
Best replacement cover. Replaces that old piece of junk original part. This part is much thicker and stronger. Adds some style as well. Very easy install
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Next Level
Just like you would expect, Riffraff takes it to the next level of quality and engineering. Great part, looks amazing and fit was perfect. Stainless hardware is a very nice touch.
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HPOP bolt access cover
Great product. Very thick aluminum. Uses an o ring seal that is much better design than stock.
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Impressive
This part is impressive in its design and engineering. Beautifully machined, and surprisingly more stout and rigid than any other I have seen. I bought it for my new engine build because of the color options, but now after installing it I would strongly recommend it base solely on the quality and how much better it is over stock. Doesn't bend, like others I have had.
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Perfect fit looks great like the o ring versus trying to get the cover with sealant on it in position. Works great
Great product like the color selection






