Adjustable Fuel Pressure Regulator Kit 3-110PSI with AN10 Feed Port and AN6 Return Port with Replacement Spring (blue+black)
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Availability:
Only 7 left in stock, order soon!
Arrives
Monday, Feb 16
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Color: blue+black
Features
- [Application] : This fuel pressure regulator kit can fit for most vehicles' EFI systems,but can only work for gasoline, E85 and alcohol/ethanol fuel line, and can not used for diesel fuel line (Nylon braided fuel line is not compatible with E85.)
- [3-110psi Range] : This fuel pressure regulator kit comes with 4pcs replacement spring (3-20psi, 20-45psi, 45-70psi,65-110psi) which can adjust from 3-110psi.This wide range can meet most fuel line project .The spring preinstalled in the pressure regulator is 60-90psi.
- [Construction] :The PQY fuel pressure regulator is made of billet aluminum ,features with AN10 ports for feed ,AN6 port for return ,1/8'' NPT gauge port and vacuum boost line connection port. (Note: when installing fuel regulator NPT pressure gauge port, please use thread sealant tape for sealing).
- [Easy to use] :You can adjust psi by loosing or tighting the bolt on the top of the fuel pressure regulator.If you only need one feed port ,you can use the end cap in the kit .
- [Complete Pressure Regulator Kit] : 1x fuel pressure regulator; 1x pressure gauge; 4x replacement springs; 1x sealant tape; 1x allen key; 1x AN10 port plug; 2x AN10 to AN6 fittings; 2x AN10 to AN8 fittings; 2x AN10 to AN10 fittings; 1x ORB6 to AN6 fitting.
Manufacturer: PQY
Brand: PQY
Model: FPR91-QY
Item Weight: 1.76 pounds
Package Dimensions: 5.91 x 5.51 x 3.54 inches
Item model number: FPR91-QY
Exterior: Machined
Manufacturer Part Number: FPR91-QY
Date First Available: September 19, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Feb 16
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: red+black
The regulator looks top notch with good machining. Haven't installed it yet, but I expect it to work just fine. Great bargain.
Reviewed in the United States on January 8, 2026 by Edward J Kitching
Color: blue+black
I used this regulator as a temporary AFPR while waiting on my Aeromotive unit to arrive, and it honestly did better than I expected. I dropped down one spring and it settled in right around 58 psi, holding steady without creeping or wandering during use. The kit comes with a good selection of fittings and springs, which made it easy to get it configured quickly without digging through my parts bin. Adjustment was straightforward, and the gauge was close enough to trust for a temporary setup. For what it is, it felt predictable and easy to dial in. I wouldn’t hesitate to use this again in a pinch. I’m keeping it as a backup, and there’s a good chance it ends up on a different project down the road. If you need an affordable adjustable regulator for testing, mockup, or a secondary build, this one does the job.
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Reviewed in the United States on January 30, 2026 by JB
Color: black
Straight up junk. Started leaking as I started my truck.
Reviewed in the United States on December 9, 2025 by Robert
Color: red+black
The media could not be loaded. I’m an old school hot rodder who is used to mechanical fuel pumps and carburetors. For my current Chevy C10 project I am transitioning to EFI, so this is the first time I’m trying a fuel pressure regulator. This was budget friendly and out of the box it seems like a very high quality piece. My only issue is that it comes with no instructions, but the diagrams here on the product page are enough to get started. The only question I don’t see an answer to is how the vacuum boost port works to tailor fuel flow. The in and out ports aren’t labeled, again referring to the pictures here on the product page. A nice variety of fittings are supplied, so it will be easy enough to install into most systems, including mine which is 6AN. Beside the friendly cost of entry and nice build quality the stand out feature for me is the wide range of fuel pressures at which this will work. For my initial installation I am using the existing mechanical fuel pumps and and carburetor, but with a simple change of a spring I can run this with my EFI and higher pressure electric fuel pumps when I make the conversion.
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Reviewed in the United States on December 8, 2025 by StealthLS2
Color: black
Works great on the car, easy in install
Reviewed in the United States on January 13, 2026 by Aleshia casselton
Color: black
I've seen these fuel regulator kits in the past, but this one is unique. First, it gives you fitting for a 6AN, 8AN, or 10AN fuel feed. Most come with only one option. The included fittings for all these sizes adds a lot of value. It looks great. The finish is perfect and the mounting bracket was already attached to the regulator. The gauge did not come oil filled, but it appears you could add mineral oil through a plug in the side. The kit wven includes a little PTFE tape to prevent leaks on the gauge threads. The coolest thing about this one is it functions for pretty much any build utilizing a fuel return. There are spring in low psi for carburetors. There are springs in mid size for gasoline electronic fuel injection. There is even a very high psi spring that might be needed on an extreme boosted build. Overall it is an impressive kit for the money.
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Reviewed in the United States on December 7, 2025 by ReViewER ReViewER
Color: purple+black
Good pressure regulator for almost anything, easy to install and adjust
Reviewed in the United States on December 11, 2025 by Amazon Customer
Color: black
No instructions included in package which threw me off at first. The Amazon description with pictures and details is sufficient with details on options for installation and adjustment. The regular is hefty and well built. I am not sure of o ring durability however for time being it appears to be sufficient. The ability to tune regulator toy needs by swapping a spring and adjusting top bolt makes it great for different applications. Use of AN style connections is also a plus. Finally being able to use or block off the gauge port is a nice feature. Not sure what to do on boost port, but will play around with it and see if I can just cap it off.
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Reviewed in the United States on November 16, 2025 by Steeeeeeeve Perry Steeeeeeeve Perry