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Description
Adjustable Billet By-Pass Regulator-6An Kit W/Fittings & Gauge-12-880KITHolley 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 6AN port sizes to adapt to your new or
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 6AN 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. These kits include a fuel pressure gauge and adapter fittings to get you started on your installation.
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
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
4.8 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Amazing fit and price
Works great every time!
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Reviewed in the United States on September 10, 2025
★★★★★ 5
Great replacement filters
I’m onto round 2, almost due for round three of filter and oil changes on my eco diesel JL and so far these have worked great because i refuse to pay $50 for just an oil filter. No oil pressure issues with the oil filters and fuel filters prime and work as they should.
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Reviewed in the United States on March 2, 2025
★★★★★ 5
Perfect fit for 2020 jeep eco diesel
Send set 8 have used, on my 2020 Jeep Wrangler Rubicon with Eco Diesel.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
On time shipping
What I need when I need it
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Reviewed in the United States on May 7, 2026
★★★★★ 1
Oil pressure drop
Once the engine warms up, the oil pressure drops enough to trigger the check engine light every time it dips below the threshold. I decided to try an aftermarket oil filter, but it looks like I’ll be switching back to the pricey OEM one after all.
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Reviewed in the United States on December 14, 2025
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