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Description
Holley Fuel Pressure Regulator 4.5 - 9 PSI # HO12-803Holley Fuel Pressure Regulator 4. 5 9 PSI # HO12 803 Fuel Pressure Regulator, Chrome Plated, 4 1 2 9 psi, Universal, Each Pressure Range (psi): 4. 5 9 Regulator Style: Non return Regulator Location: Inline Boost Vacuum Reference Port: No Gauge Port: No Mounting Bracket Included: Yes Fittings Included: No Rebuildable: Yes Inlet Quantity: One Inlet Attachment: Female threads Inlet Size: 3 8 in. NPT Outlet Quantity: Two Outlet Attachment: Female threads
Holley Fuel Pressure Regulator 4.5 - 9 PSI # HO12-803Fuel Pressure Regulator, Chrome Plated, 4 1/2-9 psi, Universal, Each
Pressure Range (psi):4.5-9
Regulator Style:Non-return
Regulator Location:Inline
Boost/Vacuum Reference Port:No
Gauge Port:No
Mounting Bracket Included:Yes
Fittings Included:No
Rebuildable:Yes
Inlet Quantity:One
Inlet Attachment:Female threads
Inlet Size:3/8 in. NPT
Outlet Quantity:Two
Outlet Attachment:Female threads
Outlet Size:3/8 in. NPT
Regulator Material:Aluminum
Regulator Finish:Chrome plated
Quantity:Sold individually.
The needle and seat assemblies that are installed in Holley Performance carburetors can sufficiently control fuel pressure up to about 8 psi. If the fuel pump is putting out more than 8 psi, a regulator should be used to keep the fuel pressure within safe limits and avoid the possibility of flooding. Holley manufactures a number of regulators for most any need.
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- Free Standard Shipping on $100+ Orders to the USA.
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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
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Product Reviews
★★★★★ 5
Great for creating a workspace
Color: Grey
I needed a room divider that could be easily folded for storing to put behind my chair during my work calls. This works perfectly! Was very easy to put together. Lightweight but sturdy enough that it won’t fall over.
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Reviewed in the United States on February 27, 2026
★★★★★ 2
Base part of it
Color: Black
Even though I kept this it’s very uncomfortable because of the way the base works . They are very long at the bottom and it’s hard to open and close
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Great room separator
Color: Black
The panels are much longer than we expected! We only needed 3 of the 4 proivided. It's slightly flimsy, but holds together nicely. The screwdriver that came with did not fit the screws, but luckily we had a Phillips head. It's very lightweight. It is definitely a good value for the money.
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Reviewed in the United States on February 10, 2026
★★★★★ 1
Never got to try it because it was broken
Color: Black
Came with a broken piece and is taking forever to get a refund…there wasn’t an option for a replacement
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Reviewed in the United States on March 15, 2026
★★★★★ 3
Room divider
Color: Black, Color: Black
It was much simpler than anticipated. I don't think it's very sturdy and it lacks weight, but it's attractive.
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Reviewed in the United States on March 20, 2026