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Holley Bypass Fuel Pressure Regulator Kits 12-840KIT Regulators, Regulator, Inline, 4.5-9 psi, No Return, 3/8 in. Inlet and Outlet, Black Finish, Fittings, Gauge, Bracket, Kit

SKU: HLY12-840KIT

Fuel Pressure Regulators

Holley Bypass Fuel Pressure Regulator Kits 12-840KIT Regulators, Regulator, Inline, 4.5-9 psi, No Return, 3/8 in. Inlet and Outlet, Black Finish, Fittings, Gauge, Bracket, Kit

SKU: HLY12-840KIT

Fuel Pressure Regulators
A$825.89
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Holley bypass fuel pressure regulator kits are part of a complete line of fuel system products from Holley. Offering several different kits, each features a billet or diecast aluminum regulator with an adjustable psi for precise fuel pressure changes and they are finished for corrosion resistance and good looks. The regulators are fitted with a 1/8 in. NPT gauge port and include an Earl's fuel pressure gauge, three adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware. Choose the kit to best fit your project's needs and performance.

Part Type

Fuel Pressure Regulators

Data: v4.2 - Upd: 2026-10-18 03:43:55

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
12-840KIT
Product Attributes - Part Type
Fuel Pressure Regulators
Product Attributes - Product Line
Holley Bypass Fuel Pressure Regulator Kits
Product Attributes - UPC
090127122884
Product Attributes - Regulator Pressure (psi)
4.5-9
Product Attributes - Regulator Style
Non-return
Product Attributes - Regulator Location
Inline
Product Attributes - Boost/Vacuum Reference Port
No
Product Attributes - Gauge Port
Yes
Product Attributes - Inlet Quantity
1
Product Attributes - Regulator Inlet Size
3/8 in. NPT
Product Attributes - Inlet Attachment
Female threads
Product Attributes - Outlet Quantity
2
Product Attributes - Regulator Outlet Size
3/8 in. NPT
Product Attributes - Outlet Attachment
Female threads
Product Attributes - Fittings Included
Yes
Product Attributes - Regulator Material
Aluminum
Product Attributes - Regulator Color
Black
Product Attributes - Rebuildable
Yes
Product Attributes - Mounting Bracket Included
Yes
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Includes Mr. Gasket 3/8 in. NPT to -6AN fittings, Earl's fuel pressure gauge, and mounting bracket.

Reference Information

Brand Name/s Holley
StreetFX SKU hly12-840KIT
SFX Item ID 4782960
Supplier Item Code 4782960
Manufacturer SKU 12-840KIT
Manufacturer UPC 90127122884
Alternative References HOL12-840KIT

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