Holley VR Series Billet 2-Port Fuel Pressure Regulator (HO12-851)
SKU: 78875700467

Holley VR Series Billet 2-Port Fuel Pressure Regulator (HO12-851)

Sale price$410.85 Regular price$456.50
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Description

Holley VR Series Billet 2-Port Fuel Pressure Regulator (HO12-851)HO12 851 2 PORT VR SERIES FUEL PRESSURE 40 100 PSI, 10AN inlet Outlet & Return, With 1 8" Boost Port Part Number: HO12 851 The Holley VR Series billet fuel pressure regulators are part of the VR1 and VR2 Series brushless fuel systems product line. These regulators can support 3000+ horsepower engines that require high volumes of fuel flow. Both EFI and carburetted versions can be referenced on a 1: 1 ratio. They are precision machined from 6061 T6

HO12-851 - 2 PORT VR SERIES FUEL PRESSURE

40-100 PSI, -10AN inlet/Outlet & Return, With 1/8" Boost Port

Part Number: HO12-851

The Holley VR Series billet fuel pressure regulators are part of the VR1 and VR2 Series brushless fuel systems product line. These regulators can support 3000+ horsepower engines that require high volumes of fuel flow. Both EFI and carburetted versions can be referenced on a 1:1 ratio. They are precision machined from 6061-T6 billet aluminum for strength and durability and feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks. Offered in 2 port and 4 port versions for carbureted or EFI pressures, Holley has the regulator to cover your needs!
Features:
EFI regulators are adjustable from 40-100 PSI base pressure
Carbureted regulators are adjustable from 4 to 9 PSI base pressure
Compatible with gasoline, methanol, and E85
1/8" NPT gauge port
Designed for use with the Holley VR1 and VR2 Series Brushless in-line fuel pumps
Can be referenced on a 1:1 ratio - includes a barb fitting and a -4 AN fitting for reference connection
2 port regulators feature a 10 AN O-ring inlet/outlet and return
4 port regulators feature a 10 AN O-ring inlet and return with (4) 8 AN O-ring outlets

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78875700467

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Susan K Anderson
Whiting, US
★★★★★ 5
Men’s mock golf shirt
Color: Lake Green, White, Black, Size: XX-Large
Fit & quality very good.
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Reviewed in the United States on June 4, 2026
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Garfield S
Pawtucket, US
★★★★★ 5
Nice Fit
Color: Black, White, Light Gray, Size: 3X-Large
I picked this up looking for something simple but clean, and it delivered. The fit is comfortable, the material feels solid, and it looks good without needing much effort. It’s one of those pieces you can throw on and still look put together.
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Reviewed in the United States on March 29, 2026
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Rob75432
Phoenix, US
★★★★★ 4
Good value, soft and comfortable
Color: Black, Army Green, Light Gray, Size: 4X-Large, Color: Black, Army Green, Light Gray, Size: 4X-Large
Initial thoughts are very positive with this 3 pack shirt set. The green is similar to an OD military green and the black and gray are standard color shades. Material is soft and sizes are true to size. The mock turtleneck isn’t too tight but may still be a little annoying to some people. I do question the amount of spandex in these shirts. Tag says 5% but these shirts are extremely stretchy and feels like a higher spandex content. It’s also a little tough to figure out which way is the front of the shirt. Visually rhe front does have a lower collar line than the back but would still be nice to have a brand tag printed in the back of the shirt for quicker identification. Overall for roughly $12 a shirt these are a good choice for everyday wear. I will update rating if these shirts fail to meet expectations after further use.
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Reviewed in the United States on April 8, 2025
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Eliot
Dallas, US
★★★★★ 5
👍🏻
Color: Black, Army Green, Light Gray, Size: 5X-Large
Weirdly thick material, I wasn’t a fan but it’s a good sleep shirt
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Reviewed in the United States on May 28, 2026
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Dr. DeeJaye
Massapequa, US
★★★★★ 5
Just what I wanted.
Color: Black, Navy Blue, Wine Red, Size: 5X-Large
These may have just become my standard shirt to wear. Feels good whether tucked or out. Drapes well and fits well. So far, I can see it adjust to the different undershirt I may wear. Will probably order another set in other colors and a back up set of the basics because they will get worn a lot.
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Reviewed in the United States on July 17, 2025

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