SKU: 87136081790

Adjustable Billet By-Pass Regulator-6AN - 12-880

Sale price$93.57 Regular price$103.97
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

Adjustable Billet By-Pass Regulator-6AN - 12-880Overview: 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 are offered with two port sizes, 3

Overview:

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 are offered with two port sizes, 3/8" NPT or 6AN 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) 6AN O-ring Inlet; (1) 6AN O-ring Outlet; and (1) 6AN O-ring 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

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley
Color Black
Emission Code 5
Fuel System EFI/Carb
Fuel Type Gasoline
Inlet Size 6 AN O-Ring
Material Aluminum
Outlet Size 6 AN O-Ring
Product Type Fuel Pressure Regulator
Return Size 6 AN O-Ring
Style Bypass
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: 87136081790

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4.1 ★★★★★
Based on 18 reviews
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A
Verified Purchase
Arash
Bozeman, US
★★★★★ 5
Nice comfortable shoes
Size: 8.5, Color: Iron Nubuck/Iron
Looks good. Comfortable shoe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
J
Verified Purchase
Jenna Tracy
Draper, US
★★★★★ 5
Great product, great delivery!
Size: 10.5 Wide, Color: Navy Blazer/Ivory
Great shoe- saw them in Nordstrom and was pleased to see I could get them quickly on Amazon. Arrived quickly and were packaged well!
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Reviewed in the United States on May 20, 2026
H
Verified Purchase
HD
Boise, US
★★★★★ 5
Fit and comfort
Size: 12, Color: Ch British Tan/Ivory
These have to rate as equal to any shoes I've ever owned. I know everyone's foot is shaped differently but when I slipped my feet into these I was immediately sure I had made the correct choice. Sizing is true. You note, I'm sure, that these are slip-on shoes. My experience with slip-ons has been mixed as sometimes the heel tends to slip due to the maker leaving room for the slip-on function to take place. When I got these I discovered that the opening for my feet was so tight I needed to shoe-horn them in and it wasn't particularly easy. The heel counter was "high and tight" but once I got my feet in the shoes it was heaven. Then, after a couple of days wearing them I can now slip my feet into these slip-ons with ease and the shoes grip my feet like a lace-up shoe can do. I have one other pair of Cole Haans in the same size 12. They are also a wonderful fit for me. I highly recommend.
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Reviewed in the United States on April 8, 2025
J
Verified Purchase
Juan
Phoenix, US
★★★★★ 4
Great shoes true to size
Size: 11, Color: Ivory/Microchip/Ivory, Size: 11, Color: Ivory/Microchip/Ivory
Great shoes, came with box. Brand new, true to size 11 US ! :) in my country they cost 270 USD so, really nice and very comfortable shoe considering i have plantar fasciitis. 3 month update: They get wrinkles pretty fast in just a few weeks due to the material, it’s not noticeable to others at all, but it’s worth keeping this in mind when buying this particular model.
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Reviewed in the United States on February 21, 2026
S
Verified Purchase
Shaun
Boise, US
★★★★★ 5
Great comfort and look.
Size: 12, Color: Optic White/Optic White
Cole Haan is my go to shoe. This shoe is very comfortable and can be dressed up or down.
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Reviewed in the United States on March 19, 2026

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