Holley 12-840 HP Billet Carbureted Fuel Pressure Regulator, Adjustable

Description

It is adjustable from 4.5-9 psi for precise fuel pressure adjustments, Made of billet aluminum with a black anodized base and clear anodize top for good looks, To be used in systems where a return line is not needed, Has one 3/8" NPT inlet and two 3/8" NPT outlets, Is comparable and interchangeable with popular Holley® 12-803 regulator
Holley 12-840 HP Billet Carbureted Fuel Pressure Regulator, Adjustable
Sku # 42512840
Mfr. Part # 12-840
Condition
New
Brand
Holley
Sold
Each
Details
Info
Holley® Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley®. They are precision machined from 6061-T6 billet aluminum for strength and durability. They feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks. The Holley 12-840 fuel pressure regulator features 3/8" NPT in/out ports.
Adjustable from 4.5-9 psi for precise fuel pressure adjustments
Constructed of billet aluminum with a black anodized base and clear anodize top for good looks
Used in systems where a return line is not needed
Use with electric or mechanical pumps
One 3/8" NPT inlet and two 3/8" NPT outlets
1/8" NPT gauge port
Comparable and interchangeable with popular Holley® 12-803 regulator
Mounting bracket included
Charts
(PDF)
WARNING: Cancer and Reproductive Harm -- p65Warnings.ca.gov
Specs
Material Type
Aluminum
Finish
Anodized
Color
Black
Fuel Type
Gasoline
Pressure Regulator Inlet Size
3/8 inch NPT
Pressure Regulator Outlet Size
3/8 inch NPT
MFG. Part #
12-840
Return Size
Non-Return
GTIN Code
090127670453
Fuel Pressure Rating (psi)
4.5-9
Reviews
Works perfect
Rated
by Armando M on October 17, 2020
Summary:
New fuel pump was flooding my carb. This worked perfectly!
Yes, I recommend this product.
Replaced the old one after only 3 years
Rated
by 69 Mustang on May 05, 2018
Summary:
I bought the same one because of unique mounting location of the first one, or else I would have bought a different model or brand.
No, I would not recommend this product.
Related Items / Suggested Parts
Holley 12-822 Regulator Rebuild Kit
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Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 69 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
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