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534-284 Hi-Flow Billet Fuel Rail Kit Gen III Hemi Engines
InfoVehicle Info Needed
HOLLEYPART NUMBER: 510-534-284

534-284 Hi-Flow Billet Fuel Rail Kit Gen III Hemi Engines

$26595
ShippingShips on Sep 14, 2026
Lowest PriceLowest Price Guarantee

Gen III Hemi
Direct Replacement Fuel Rail Kit
  • For Late-Model Naturally-Aspirated Gen III Hemi Engines-5.7/6.1/6.4L
  • 5/8 in. Inner Diameter Rails
  • -8 AN ORB Ports (Front/Back)
  • 1/8 NPT Gauge Ports
  • Includes Fuel Rails, Mounting Brackets, Hardware

    534-284 Features:

    • Fitment includes Direct Injection (DI) engines (2018+)
    • Machined billet aluminum rails with "Holley EFI" logo
    • Black Anodized Finish
    • Fuel rails allow the OE injector clips to be re-used
    • Clip locations maintain the radial injector spray pattern
    • Fuel rails accept -8 AN (3/4 in.-16) O-ring fittings (sold separately)
    • Brackets fit 60.65 mm (2.387 in.) stock length injectors

    Tech Notes:

    • Gauge ports can be used as fuel feed connection with NOS 17015NOS Fuel Line Adapter Fitting (sold separately)
    • Rail feed from factory line can also be accomplished with a Holley 534-211 Fuel Rail Adapter Kit (sold separately)

      • Replacement Fuel Rail Kits & Components from Holley

      Holley replacement fuel rails, crossovers, and kits deliver high-volume performance and lasting durability.

    Part TypeFuel Rail
    Product LineHolley Fuel Rail Kits & Components
    BrandHOLLEY
    Package Height1.7
    Package Width14.1
    Package Length18.0
    Weight3.4 PG
    Part CategoryPerformance Parts
    Hardware IncludedYes
    Fuel Rail MaterialAluminum
    Fuel Rail FinishBlack anodized
    Fuel Injection TypeDirect Injection
    Fuel Injectors IncludedNo
    QuantitySold as a Kit
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Please click here to download the instructions PDF file

    Items You Need

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

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    AN 90-Degree Max Flow Swivel Hose End [-8 AN Female to -8 AN Hose, Black]

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    Fuel Line Adapter Fitting

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    Part Number : 555-82036
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    Stainless Steel Cushion Clamps [-10 AN Hose]

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    Some parts are not legal for use in California or other states with similar laws / regulations
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