Holley 12-887 By Pass Style Carbureted Fuel Pressure Regulator
Holley 12-887 By Pass Style Carbureted Fuel Pressure Regulator
Holley

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#42512887

Holley 12-887 By Pass Style Carbureted Fuel Pressure Regulator

  • Die Cast aluminum construction
  • 3/8” NPT Inlet, Outlet, and Return ports
  • 1/8” NPT Gauge Port
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$84.35

/each

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Product Summary

Universal Fit, 4.5-9 Fuel Pressure Rating (psi)

  • Die Cast aluminum construction
  • 3/8” NPT Inlet, Outlet, and Return ports
  • 1/8” NPT Gauge Port
  • 1/8" NPT Boost Reference – 1:1
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Key Specs

MFG. Part #12-887
BrandHolley
Regulator StyleReturn
Material TypeAluminum
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Holley 12-887 Details

Holley does it again with their new die cast aluminum by pass style fuel pressure regulators. The same Holley quality that you expect at a price point that every budget can handle.1/8" NPT barb fitting for boost reference port included.
  • Die Cast aluminum construction
  • 3/8” NPT Inlet, Outlet, and Return ports
  • 1/8” NPT Gauge Port
  • 1/8" NPT Boost Reference – 1:1

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Holley 12-887 Specifications

KEY SPECS
MFG. Part #12-887
BrandHolley
Regulator StyleReturn
Material TypeAluminum
GENERAL
Fuel Pressure Rating (psi)4.5-9
Pressure Regulator Inlet Size3/8" NPT
Pressure Regulator Outlet Size3/8" NPT
Inlet Quantity1
Outlet Quantity1
Regulator MaterialAluminum
Gauge PortYes
RebuildableYes
Outlet AttachmentFemale Threads
Mounting Hardware IncludedNo
Fittings IncludedNo
Regulator FinishBlack
Return Fitting3/8" NPT
Return AttachmentFemale threads
Sold in QuantityEach
Boost/Vacuum Rise Ratio1:01
GTIN Code090127000397

Ratings & Reviews

4.7

7 Reviews

Overall Assessment

Customers consistently praise the product for its practicality and quality, commonly utilized to regulate in-tank electric pumps for carbureted setups and EFI to Carb conversions. The product's reliability and performance are often highlighted, living up to customer's expectations. Additional commendation is given for its easy installation, greatly due to the appreciated inclusion of a mounting bracket. Compared to competitors, customers recommend our product due to its dependable and effective functionality in various projects.

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4.7

7 reviews

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I WOULD BUY AGAIN

5.0

10 months ago

SAM

DALLAS

Verified

WORKED AS DESCRIBED AND WASNT INVOLVED IN THE RECALL EITHER! BLACK LOOKS REALLY NICE WITH BLACK POWDER COATED BRACKET -

Would Recommend

I WILL BUY THIS AGAIN

5.0

11 months ago

SAM

DALLAS

Verified

WORKED GREAT NO LEAKS NOT PART OF THE RECALL -

Would Recommend

Yes, would buy this product again.

5.0

2 years ago

Flash

Redlands, Ca.

Verified

This product is awesome and does exactly what I needed. Maintain 6-1/2 psi in my fuel line to the carburetor and the rest goes back to the tank.

Would Recommend

Mounting holes weren't threaded

4.0

2 years ago

That92 guy

Fort Scott kansas

Verified

Regulator works great. Only negative is the 2 mounting holes weren't threaded.

Would Recommend

I will use this again for another project

5.0

3 years ago

pop

md

Verified

Used this to regulate an intank electric pump for a carbureted set up.

Would Recommend

Worked as expected. Recommend it.

5.0

4 years ago

Joel5.0

19090

Verified

I am using this unit as a step-down regulator in an EFI to Carb conversion with the in-tank fuel pump.

Would Recommend

Exactly what I expected from Holley

4.0

5 years ago

Sweptline Bear

Burleson TX

Verified

I especially liked the mounting bracket - Easy to install

Would Recommend

Showing 7 of 7 reviews

Questions & Answers

3 Questions • 3 Answers

What comes in the box?

by Gio

• 5 months ago

1 answer

View Answer

Can the return port be plugged and used at a later time?

by Steve

• 12 months ago

1 answer

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Does this come with a mounting bracket?

by Oneway

• 2 years ago

1 answer

View Answer

3 of 3 questions shown

Customer Impersonation Script