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 10 left in stock, order soon!
Arrives
Tuesday, Jun 30
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:
Tuesday, Jun 30
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
Worked extremely well. I did an LS3 swap on a 69 Firebird and the Corvette regulator did not work. My fuel pressure was over 80 psi at the rails. I installed this regulator and it worked great. Key point to NOTE, regulator screw was set to closed. You have to screw it down half way or your vehicle wont start due to the pressure being shut off. I installed the 40-70 spring was able to adjust pressure to exactly 60 psi. I ordered the unit with all the extra 6AN fittings. Saves you money.
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Reviewed in the United States on March 31, 2026 by daniel
Color: red+black
Before ordering this fuel pressure regulator i did a lot of research, most reviews are good on it but the bads are about the “quality inspection” few reviews stated to open it up to check for debris, i had to open it anyway to swap out for a smaller spring, once opened did find pieces of aluminum on the inlet/outlet ports and small pieces on the diaphragm, regulator doesn’t work for low PSI for a carb cant get it to regulate to 6psi
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Reviewed in the United States on April 30, 2026 Reviewed in the United States on April 30, 2026 by Jesus R Velarde
Color: black
Regulator worked great, encourage buying a different pressure gauge for carburetor systems, one provided isn't sensitive enough for single digit pressures.
Reviewed in the United States on March 29, 2026 by Ryan Hennessey
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
As others have noted, it will leak like a sieve, AND less than a day in, it won't hold pressure. Don't waste your time on it...
Reviewed in the United States on March 30, 2026 by RB
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
Doesn't hold proper fuel pressure.
Reviewed in the United States on April 13, 2026 by HighCountry
Color: red+black
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