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Description
Billet Bypass Fuel Pressure Regulator Kit 15-60 Psi W/Fittings & Gauge-12-846KITHolley EFI Billet Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12 846 regulator features a billet aluminum body and a black finish for corrosion resistance and good looks. The regulator contains 8 AN in out ports, a 6 AN return port, a 1 8" NPT gauge port, and a 1 8" NPT vacuum port for Boost Reference (1: 1). In addition, 3 adapter fittings, a barbed fitting for the vacuum
Holley EFI Billet Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12-846 regulator features a billet aluminum body and a black finish for corrosion resistance and good looks. The regulator contains 8 AN in/out ports, a 6 AN return port, a 1/8" NPT gauge port, and a 1/8" NPT vacuum port for Boost Reference (1:1). In addition, 3 adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware are also included.
Features:
- Die Cast Aluminum Construction
- Adjustable from 15-60 psi for precise fuel pressure adjustments
- Used in return style systems with a line back to the fuel tank
- 8 AN O-ring Inlet, Outlet, and 6 AN O-ring Return Port
- 1/8” NPT Gauge Port and Earl's Fuel Pressure Gauge (100187ERL)
- 1/8" NPT Boost Reference (1:1) and Barbed Fitting
- Mounting Bracket Included
FEATURES
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Easy to do it yourself and save!
Size: 8.8" x 9.3" x 1.2"
One place wanted $85 to replace this! Another wanted $50! I ordered this for $10, watched a YouTube video and did it myself! Super easy!
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Buy it, worth it.
Size: 8.8" x 9.3" x 1.2"
Good quality product. Easy to use and install. Worth the money.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
It fits perfectly—no problems at all.
Size: 2017-2025 FD-4625 & FL2124S Fuel Filter Set
Everything is great. Thank you.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Fits!
Size: 2017-2025 FD-4625 & FL2124S Fuel Filter Set
Everything fit and seems to be working good!
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Good filter kit
Size: 2017-2025 FD-4625 & FL2124S Fuel Filter Set
Been using this parts since 2 years ago. Never have any issues. I recommend it.
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Reviewed in the United States on February 23, 2026