Billet Bypass Fuel Pressure Regulator Kit
Billet Bypass Fuel Pressure Regulator Kit
Billet Bypass Fuel Pressure Regulator Kit
4.3 · 3 reviews
SKU: 12-840KIT

Billet Bypass Fuel Pressure Regulator Kit

$339.99
FREE delivery
Description

ABOUT THIS PRODUCT

Holley Billet Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12-840 regulator features a billet aluminum body and a black finish for corrosion resistance and good looks. The regulator contains 3/8" NPT in/out ports, a 1/8" NPT gauge port. In addition, 3 Mr. Gasket 3/8" NPT to -6 AN fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware are also included.

Product Features:
  • Adjustable from 4.5-9 psi for precise fuel pressure adjustments
  • 3/8" NPT Inlet, Outlet Ports
  • 1/8" NPT Gauge Port and Earl's Fuel Pressure Gauge (100187ERL)
  • Mr. Gasket 3/8" NPT to -6 AN fittings (481666-BL x3)
  • Mounting Bracket Included
Specifications
Brand
Holley (1288)
SKU
12-840KIT
Product type
Automotive
Guides & Resources
User Guide
Returns Policy
Shipping Information

Free shipping on all orders. Most items ship next business day after your order is placed.

Returns Policy

Returns are accepted when the product is in its original, unopened container. Contact us if you have questions about your order.

View full returns policy

Customer Reviews

4.3

Based on 3 reviews

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R
Riley N. Verified Buyer
06/08/2025

No complaints

Quick delivery and the product exceeded my expectations.

M
Maria K. Verified Buyer
08/17/2025

Would buy again

Does what it is supposed to do. Happy with this purchase.

T
Ted R. Verified Buyer
02/03/2025

Works perfectly

Setup was simple and it has worked reliably since day one.

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