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Holley Fuel Pressure Regulators 12-804

$28.95

Fuel Pressure Regulator, Tumble Polished, 1-4 psi, Universal, Each

Estimated Ship Date: Today Would you rather pick it up? Select Location

Brand: Holley
Manufacturer's Part Number: 12-804
Summit Racing Part Number: HLY-12-804

UPC: 090127020234
Pressure Range (psi): 1-4
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
Return Fitting Size: 3/8 in. NPT
Regulator Material: Aluminum
Regulator Finish: Polished
Quantity: Sold individually.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

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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Most Helpful Reviews Review this Product

6 Customer Reviews for Holley 12-804 - Holley Fuel Pressure Regulators

Average Customer Review

5 Star

(4)

4 Star

(2)

3 Star

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Holly fuel pressure regulator

Summit RacingSummit Racing Verified Purchase

Very nice regulator. Easy to mount and set.

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Reviewer: JILL from OR

Date: April 08, 2014

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awesome

Summit RacingSummit Racing Verified Purchase

Works perfectly.shiny finish. Easy install, and as always fast shipping from summit

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Reviewer: RANDALL from OH

Date: April 07, 2014

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Consistancy Challenge

Summit RacingSummit Racing Verified Purchase

I bought this product for my SCCA road race Lotus 7 replica powered by a Kawasaki ZX9R engine which is very fuel pressure sensitive. It is looking for under 2 psi and am finding that when checking my data collection info from an on track session, the fuel pressure is varying by as much as 50%. Particularly at high RPM the pressure is over driving the carb float valves and causing an over rich condition where I lose significant power (shifting from 5th to 6th the engine bogs badly). Am in the process of swapping to a Honda F20C engine which is fuel injected and will swap out the entire fuel system so this problem will go away. ...read more

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Reviewer: BARRY from FL

Date: March 20, 2014

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Nice

Summit RacingSummit Racing Verified Purchase

Looks great and works as advertised.

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Reviewer: MICHAEL from Canada

Date: March 20, 2014

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Holley Fuel Pressure Regulators 12-804

Summit RacingSummit Racing Verified Purchase

I used this to a generator in my motor home.It requires a return line and can be set below one psi and still works fine.

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Reviewer: MAX from NY

Date: March 09, 2014

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Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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