Fuel your passion! 🚀
The Holley12-840 Adjustable Billet Fuel Pressure Regulator is engineered for precision and performance, featuring a 4.5-9 PSI adjustable range, lightweight aluminum construction, and a sleek black anodized finish. With easy installation through 3/8" NTP ports, this regulator is perfect for enthusiasts looking to enhance their vehicle's fuel system.
| Brand | Holley |
| Material | Aluminum |
| Item Weight | 3.2 ounces |
| UPC | 090127670453 |
| Global Trade Identification Number | 00090127670453 |
| Manufacturer | Holley |
| Model | Holley |
| Item model number | 12-840 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 12-840 |
| OEM Part Number | 12-840 |
S**Y
Product is great quality and fit perfectly!
Product quality was great and fit perfectly!
A**R
Steady 4.5 psi perfect for carb swap
Worked great regulating1999 dodge Dakota factory fuel pump down to a steady 4.5psi for my carb set up. Bought the $30 Holley regulator first and it did not work, it would fluctuate and eventually peg the gauge and flood the carb.
B**H
Junk buy a reputable FPR
Bottom clip that holds the spring and ball bearing in place fell out and won’t stay in. The threads on the Inlet are all gulled. Spend your money on a reputable regulator
R**E
Works as described
Works as discribed
A**R
Very nice
Very nice
F**V
Take it apart before you install it.
Item is breaking down internally after a month and fuel comes out orange every first start from sitting for a couple of days. Bypass it and fuel is clear. Not happy with it at all.
Trustpilot
2 weeks ago
2 weeks ago