SKU: 22440579487

Adjustable Billet By-Pass Regulator 3/8 NPT Kit 12-879KIT

Sale price$119.67 Regular price$132.97
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Description

Adjustable Billet By-Pass Regulator 3/8 NPT Kit 12-879KITAdjustable billet by pass return style fuel pressure regulator 3 8 NPT Kit with Fuel Pressure Gauge and Adapter Fittings Boost Reference 1: 1 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. These regulators are adjustable from 4 65 psi and will handle both carbureted and EFI applications. A second pressure

Adjustable billet by-pass return style fuel pressure regulator 3/8 NPT Kit with Fuel Pressure Gauge and Adapter Fittings Boost Reference - 1:1

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. These regulators are adjustable from 4-65 psi and will handle both carbureted and EFI applications. A second pressure spring is included allowing you to increase the fuel pressure range up to 65 psi for EFI systems. They have 3/8 NPT port sizes to adapt to your new or existing fuel lines. So, if you are currently running a carbureted system but plan to upgrade to EFI in the future, these regulators will have you covered either way.

Features:

  • Adjustable from 4-65 psi for precise fuel pressure adjustments
  • Constructed of billet aluminum with a black anodized base and a clear anodized top for good looks
  • Used in systems with a return line back to the tank
  • (1) 3/8" NPT Inlet; (1) 3/8" NPT Outlet; and (1) 3/8" NPT return
  • Includes fitting for manifold reference
  • Includes an 1/8 NPT gauge port
  • Boost Reference - 1:1
  • The 4-15 psi carbureted spring comes installed in the regulator

Specs:

Adjustable Yes
Brand Holley
Color Black
Emission Code 5
Fuel System EFI/Carb
Fuel Type Gasoline
Gauge Included Yes
Gauge Port Included Yes
Grade Type Performance
Inlet Gender Female
Inlet Port Diameter 3/8Inch
Inlet Port Quantity 1
Inlet Size 3/8" NPT
Inlet Type NPT
Material Aluminum
Maximum Pressure 65Pounds per Square Inch
Minimum Pressure 4Pounds per Square Inch
Mounting Bracket Included Yes
Mounting Type Inline
Outlet Gender Female
Outlet Port Diameter 3/8Inch
Outlet Port Quantity 2
Outlet Size 3/8" NPT
Outlet Type NPT
Port Quantity 2
Product Type Fuel Pressure Regulator
Rebuildable Yes
Return Size 3/8 inch NPT
Style Bypass
Vacuum Port Quantity 1
Warning California Proposition 65
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 22440579487

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Johanna M. Stephenson
Los Angeles, US
★★★★★ 5
Very Well Made
The Hiware Bamboo Heavy Duty Chopping/Cutting Boards Set is a popular kitchen accessory that offers a practical and eco-friendly solution for chopping, cutting, and slicing various ingredients. Here is a review of the product: 1. Design and Construction: The set includes four extra-large cutting boards made from high-quality bamboo, which is known for its durability and natural resistance to water and bacteria. The boards are pre-oiled, which helps to enhance their lifespan and maintains their appearance. The thickness and sturdy construction make them suitable for heavy-duty use in both residential and commercial kitchens. 2. Size and Versatility: The extra-large size of these cutting boards provides ample space for cutting large quantities of meat, vegetables, fruits, and other ingredients. Additionally, the set includes different-sized boards, allowing you to choose the one that suits your specific needs. The boards can also double as serving platters due to their attractive design.
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Reviewed in the United States on January 23, 2024
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Jimfo
Port Orchard, US
★★★★★ 5
Worth the money
Size: Large-3SET
This 3-piece pre-oiled bamboo cutting board isfantastic. The carbonized bamboo gives them a rich, warm tone that looks much nicer than standard cutting boards. I really appreciate the variety of sizes. They feel sturdy without being too heavy, and they stay in place well while cutting. Cleanup is easy too—just a quick wash and they’re good to go, with no lingering odors or stains. Overall, this set offers excellent quality, functionality, and value. Great for everyday cooking and a solid upgrade from plastic boards.
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Reviewed in the United States on April 29, 2026
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Jinx
Birmingham, US
★★★★★ 5
The Best buy for my kitchen
Size: Large-3SET, Size: Large-3SET
Great quality cutting boards! The carbonized bamboo feels durable yet lightweight, and they look beautiful in the kitchen. I love that they come pre-oiled and are non-toxic. The three sizes are super practical, and the hanging hole is a nice bonus. Definitely a great buy!
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Reviewed in the United States on May 5, 2026
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Verified Purchase
Erika
Whiting, US
★★★★★ 5
High quality, eco-friendly, and beautiful!
Size: Large-3SET, Size: Large-3SET
I’m obsessed with this set! The carbonized finish looks stunning on my counter, and I love that they are non-toxic and eco-friendly. They came pre-oiled and ready to use, and the different sizes are perfect for everything from meal prep to serving charcuterie. The juice grooves are a total game-changer for keeping my counters clean. Definitely worth it for any busy kitchen!
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Reviewed in the United States on April 18, 2026
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Jay
Battle Creek, US
★★★★★ 5
Great quality bamboo cutting boards
Size: Large-3SET
These cutting boards are very well made and feel solid. The bamboo is smooth, nicely finished, and already pre-oiled, which is a big plus. I like having three different sizes — it makes food prep much easier depending on what I’m cutting. They look good on the counter, don’t slide around much during use, and clean easily with a quick wash. For the price, the quality is excellent. I would definitely recommend these if you’re looking for durable, eco-friendly cutting boards for everyday kitchen use.
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