ProStar 500 Single 4-bbl Fuel Pump Kit
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MAGNAFUELPART NUMBER: 665-MP-4812-BLK

ProStar 500 Single 4-bbl Fuel Pump Kit

$1,03599
ShippingShips on 09/18/2026
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ProStar 500 Fuel Pump Kits
    ProStar 500 Single 4-bbl Fuel Pump Kit
  • Black Finish
    Includes:
  • ProStar 500 Fuel Pump with Filter
  • Large 2-Port Regulator
  • Dual Relay Wiring Harness
  • Fittings & Adapters

    Kit Includes:
  • Magnafuel Pro Star 500 Fuel Pump With Filter - 665-MP-4450
  • Magnafuel Large 2-Port Regulator - 665-MP-9833-BLK
  • Magnafuel Dual Relay Harness - 665-MP-1050
  • Magnafuel AN12 Bulkhead Fitting - 665-MP-3006-BLK
  • Magnafuel AN12 x 12 Straight Fitting - 665-MP-3009-BLK
  • Magnafuel AN10 x 12 Straight Fitting - 665-MP-3019-BLK
  • Magnafuel AN10 x 10 Straight Fitting - 665-MP-3007-BLK
  • Magnafuel 6AN x 8 Straight Fittings (Qty 2) - 665-MP-3022-BLK
  • Magnafuel 6AN x Holley Fittings (Qty 2) - 665-MP-3501-BLK

For carbureted applications up to 2,000+ hp at 28 psi

Give your engine the extra fuel it needs with one of these MagnaFuel ProStar 500 Fuel Pumps. These CNC'd aluminum bodied pumps feature a high-quality low amperage motor that is designed to work with 12 V or 16 V applications. The exclusive vane & rotor design keeps operating temperatures low, which prevents overheating. They provide your engine with a consistent fuel supply, while the external bypass eliminates cavitation and fuel starvation.

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Features & Specs:

  • Includes a race-proven low amperage motor
  • CNC machined 6061 aluminum pump body
  • Provides reliable, consistent fuel supply with superior flow
  • Instantaneous compensation changes in fuel demand
  • An external bypass eliminates cavitation and fuel starvation
  • Resin-impregnated stainless steel rotor in a polymer wear ring
  • Compatible with alcohol and gasoline 
  • Designed for 12 V and 16 V applications
  • No metal-to-metal contact within the pump itself
  • Completely rebuildable 
  • All fittings sold separately

Note: Power ratings are for naturally aspirated engines running gasoline. Some products legal for racing only; never to be used on public roads or emission-controlled vehicles.

 JEGS Easy Kits are designed by JEGS high-performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

If you’re building a performance truck, a race car or a street machine, you have to make sure that (carbureted) engine is getting the fuel delivery it needs. Don’t let fuel starvation be a problem on race day – ProStar 500 fuel pumps from MagnaFuel are a great solution; these fuel pumps are rated for up to 2000 hp (for naturally aspirated engines using gasoline) and are capable of fuel pressure of up to 25 to 36 psi. 

Performance Benefits & Key Features

The MagnaFuel ProStar 500 is engineered for durability, with a CNC machined 6061 aluminum pump body and a resin-impregnated stainless steel rotor housed in a polymer wear ring. MagnaFuel ProStar 500 fuel pumps are compatible with either gasoline or alcohol applications, and can be used with 6V or 12V electrical systems. The low amperage motor is a proven design, with superior flow rates and consistent, reliable fuel supply. Cavitation and fuel starvation are not an issue, thanks to an external bypass, and the vane and rotor design are efficient enough to keep fuel temperatures low and prevent overheating. The unique internal design features no metal-to-metal contact for good wear properties, and the entire system is designed to quickly compensate in real time for changes in fuel demand. 

Fitment, Compatibility & Applications 

MagnaFuel pumps are designed as a universal fit across applications. They’re also available as a full kit, including the pump, fuel filter, oil pressure safety switch, fuel pump safety switch and single fuel pump harness and relay. Select models are designed for use with 2 x 4 barrel carburetors, and certain models also include fittings and adapters. The MagnaFuel ProStar 500 is rebuildable, and this is also your one-stop shopping destination for fittings, seal kits, filter elements, bypass poppets, bypass springs, cam rings and rotors, upper, lower and pump bearings, bypasses, 2-port regulator and the fuel pump motor itself. 

MagnaFuel ProStar 500 are available with anodized blue, performance purple or black finishes. Regardless of your engine’s horsepower, torque and fuel system needs, the MagnaFuel ProStar 500 is up to the job, with its race-proven design that outperforms old-style mechanical fuel pumps. Note that some of these fuel pumps are for racing applications only and are not intended for use on public roads or emission-controlled vehicles. 

Part TypeFuel Pump
Product LineMagnaFuel ProStar 500 Fuel Pumps
BrandMAGNAFUEL
Package Height10.3
Package Width10.4
Package Length10.6
Weight11.9 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberMP-4812-BLK
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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