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HOLLEYPART NUMBER: 510-12-848

12-848 Billet Adjustable Regulator

Name: 12-848 Billet Adjustable Regulator
Brand: HOLLEY
SKU: 510-12-848
Price: 289.95 USD
Availability: InStock

^$289⁹⁵

Ships on Sep 02, 2026

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Dominator Series Regulators

EFI Applications
Bypass Style
Adjustable 15-65PSI
(1) -10AN O-Ring Inlet, (1) -10AN O-Ring Outlets, (1) -8AN O-Ring Return

Holley 12-848 Billet Adjustable Regulator Features:
Used in systems with a return line back to tank
Designed for use with the Holley® DominatorT in-line fuel pumps or other high pressure pumps where return line is needed
Includes fitting for manifold reference
Adjustable from 15-65 PSI for precise fuel pressure adjustments

Part TypeFuel Pressure Regulator

BrandHOLLEY

Package Height2.9

Package Width5.3

Package Length5.4

Weight1.35 PG

Part CategoryPerformance Parts

Regulator FinishBlack/Clear anodized

Outlet Size-10 AN O-ring

Inlet Size-10 AN O-ring

Regulator MaterialBillet aluminum

Outlet QuantityOne

QuantitySold individually

Boost/Vacuum Reference PortYes

RebuildableNo

Mounting Bracket IncludedYes

Gauge PortYes

Return Fitting Size-8 AN O-ring

Regulator LocationInline

Fittings IncludedNo

Inlet QuantityOne

Pressure Range (Psi)40-70

Part FitmentUniversal

Regulator StyleReturn

Vendor Part Number12-848

Package Qty1

Package TypeEA

No Questions

No Reviews

Please click here to download the instructions PDF file

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AN Port Adapter Fitting -8 AN port (3/4 in.-16 Thread) to -10 AN hose

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AN Port Adapter Fitting -10 AN port (7/8 in.-14 Thread) to -6 AN hose

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AN Port Adapter Fitting -10 AN port (7/8 in.-14 Thread) to -8 AN hose

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AN Port Adapter Fitting -10 AN port (7/8 in.-14 Thread) to -12 AN hose

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AN to Hose Barb Straight Adapter Fitting [-10 AN Male to 5/8 in. Hose, Black]

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