Air & Fuel

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Air and Fuel System Components from Northern Auto Parts


Our inventory spans a wide range of high-quality parts, from advanced fuel injection conversion kits to high-performance carburetors, all of which continue the improvement that our engine kits will give your vehicle.

Browse our extensive collection of air and fuel system components at Northern Auto Parts, your supplier for improving your vehicle's performance and efficiency. Your engine relies on air and fuel, make sure it’s getting the best of both with quality parts from Northern Auto Parts.

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  • HLY0-4779S Double Pumper

    Holley

    Part #: 0-4779S

    HLY0-4779S Double Pumper

    pdm:Body Color: Polished Aluminum
    pdm:Body Finish: Polished
    pdm:Carburetor Material: Aluminum
    pdm:Brand: Holley
    pdm:Flange Type: Square/4150
    pdm:Booster Design: Downleg
    pdm:Barrels: 4
    pdm:Booster: Downleg
    pdm:Barrel Quantity: 4
    pdm:Condition: New
    pdm:Choke Type: Manual
    pdm:Fuel Inlet: Dual
    pdm:Finish: Polished
    pdm:Cubic Feet Per Minute Rating: 750
    pdm:Carburetor Use: Performance and Race
    pdm:Fuel: Gasoline
    pdm:Marine Approved: No
    pdm:Linkage Attached: Yes
    pdm:Grade Type: Performance
    pdm:Primary Jet Diameter: 70
    pdm:Emission Code: 3
    pdm:Mounting Hole Quantity: 4
    pdm:Model: 4150
    pdm:Primary Power Valve: 6.5
    pdm:Primary Pump Nozzle Size: 28
    pdm:Secondary Pump Nozzle Size: 31
    pdm:Spacer Included: No
    pdm:Product Type: Carburetor
    pdm:Vacuum Ports: 1 timed (spark) port, 1 full, and 1 PCV port
    pdm:Material: Aluminum
    pdm:line_code: HLY
    pdm:Warning: California Proposition 65
    pdm:internal_sku: HLY0-4779S
    pdm:Warranty: Manufacturer's Limited 90 Day Warranty
    pdm:Sub Category: Carburetion
    pdm:Category: Air and Fuel Delivery
    pdm:part type: Carburetor
    pdm:Choke: Manual
    pdm:Body Material: Aluminum
    pdm:Color: Polished Aluminum
    pdm:Flange Shape: Square
    pdm:Throttle Bore Diameter: 1.688 inch
    pdm:CFM Rating: 750
    pdm:Secondary Main Jet Size: 80
    pdm:Secondary Barrel Type: Mechanical
    pdm:Supercharger Compatible: No
    pdm:Primary Main Jet Size: 70
    pdm:Fuel Type: Gasoline
    $749.95
  • HLY0-80457S Street Warrior Model

    Holley

    Part #: 0-80457S

    HLY0-80457S Street Warrior Model

    pdm:Body Color: Polished Aluminum
    pdm:Body Material: Aluminum
    pdm:Barrel Quantity: 4
    pdm:Body Finish: Polished
    pdm:Booster Design: Straight
    pdm:Brand: Holley
    pdm:Cubic Feet Per Minute Rating: 600
    pdm:Emission Code: 3
    pdm:Choke Type: Electric
    pdm:Condition: New
    pdm:Flange Type: Square/4150
    pdm:Grade Type: Performance
    pdm:Marine Approved: No
    pdm:Model: 4160
    pdm:Fuel: Gasoline
    pdm:Material: Aluminum
    pdm:Fuel Inlet: Single
    pdm:Mounting Hole Quantity: 4
    pdm:Linkage Attached: Yes
    pdm:Gasket Or Seal Included: Yes
    pdm:Primary Pump Nozzle Size: 31
    pdm:Primary Power Valve: 6.5
    pdm:Primary Jet Diameter: 66 IN
    pdm:Mounting Hardware Included: Yes
    pdm:Product Type: Carburetor
    pdm:Street Legal: Yes
    pdm:Spacer Included: No
    pdm:Secondary Barrel Type: Vacuum
    pdm:Warning: California Proposition 65
    pdm:Warranty: Manufacturer's Limited 1 Year Warranty
    pdm:internal_sku: HLY0-80457S
    pdm:line_code: HLY
    pdm:Category: Air and Fuel Delivery
    pdm:part type: Carburetor
    pdm:Sub Category: Carburetion
    pdm:Color: Polished Aluminum
    pdm:Flange Shape: Square
    pdm:Air Cleaner Flange Diameter: 5-1/8"
    pdm:Inlet Fitting Thread Type Standard: NPT
    pdm:Mounting Hole Diameter: 5/16
    pdm:Finish: Polished
    pdm:Throttle Bore Diameter: 1.563 inch
    pdm:Primary Main Jet Size: 66
    pdm:Circuit Count: 2
    pdm:Supercharger Compatible: No
    pdm:Fuel Type: Gasoline
    $499.95
  • HLY12-327-11 110 GPH Mechanical

    Holley

    Part #: 12-327-11

    HLY12-327-11 110 GPH Mechanical

    pdm:Average Flow Rating: 110 GPH
    pdm:Fuel Type: Gasoline
    pdm:Application: Chevrolet Small Block
    pdm:Color: Silver
    pdm:Free Flow LPH: 416
    pdm:Free Flow GPH: 110
    pdm:Emission Code: 5
    pdm:Grade Type: Performance
    pdm:Housing Material: Aluminum
    pdm:Inlet Quantity: 1
    pdm:Gasket Or Seal Included: Yes
    pdm:Inlet Size: 3/8 inch NPT
    pdm:Material: Aluminum
    pdm:Inlet Type: NPT
    pdm:Mounting Hardware Included: No
    pdm:Outlet Size: 3/8 inch NPT
    pdm:Product Type: Fuel Pump
    pdm:Inlet Fitting Thread Size: 3/8 IN
    pdm:Outlet Fitting Thread Size: 3/8 IN
    pdm:Outlet Type: NPT
    pdm:Warning: California Proposition 65
    pdm:Outlet Quantity: 1
    pdm:Mounting Hole Quantity: 2
    pdm:internal_sku: HLY12-327-11
    pdm:Warranty: Manufacturer's Limited 90 Day Warranty
    pdm:line_code: HLY
    pdm:Brand: Holley
    pdm:Category: Air and Fuel Delivery
    pdm:part type: Mechanical Fuel Pump
    pdm:Sub Category: Fuel Pumps and Related Components
    $165.95
  • HLY125-35 Single-Stage Power

    Holley

    Part #: 125-35

    HLY125-35 Single-Stage Power

    pdm:Gasket Or Seal Included: Yes
    pdm:Grade Type: Performance
    pdm:Product Type: Power Valve
    pdm:Opening Vacuum: 3.5 INHG
    pdm:Single Or Dual Stage: Single
    pdm:Warning: California Proposition 65
    pdm:Brand: Holley
    pdm:line_code: HLY
    pdm:Warranty: Manufacturer's Limited 90 Day Warranty
    pdm:Emission Code: 5
    pdm:internal_sku: HLY125-35
    pdm:part type: Carburetor Power Valve
    pdm:Category: Air and Fuel Delivery
    pdm:Sub Category: Carburetion
    $17.03
  • HLY125-55 Single-Stage Power

    Holley

    Part #: 125-55

    HLY125-55 Single-Stage Power

    pdm:line_code: HLY
    pdm:Gasket Or Seal Included: Yes
    pdm:Product Type: Power Valve
    pdm:internal_sku: HLY125-55
    pdm:Warranty: Manufacturer's Limited 90 Day Warranty
    pdm:Single Or Dual Stage: Single
    pdm:Brand: Holley
    pdm:Emission Code: 5
    pdm:Grade Type: Performance
    pdm:Warning: California Proposition 65
    pdm:Opening Vacuum: 5.5 INHG
    pdm:Sub Category: Carburetion
    pdm:Category: Air and Fuel Delivery
    pdm:part type: Carburetor Power Valve
    $18.22
  • HLY34-150 Fuel Line

    Holley

    Part #: 34-150

    HLY34-150 Fuel Line

    pdm:Adjustable: No
    pdm:End 1 Gender: Female
    pdm:Emission Code: 5
    pdm:Fitting Material: Brass
    pdm:Brand: Holley
    pdm:Fitting Color: Chrome
    pdm:End 2 Gender: Male
    pdm:Center to Center Measurement: 9.460"
    pdm:Grade Type: Performance
    pdm:Gasket Or Seal Included: No
    pdm:Inlet Fitting Thread Diameter: 9/16-18 IN
    pdm:Outlet Fitting Thread Diameter: 5/8-18 IN
    pdm:Finish: Chrome
    pdm:Material: Steel
    pdm:Model: 4150
    pdm:Product Type: Fuel Line
    pdm:Universal Or Specific Fit: Universal
    pdm:Housing Color: Chrome
    pdm:Warning: California Proposition 65
    pdm:Warranty: Manufacturer's Limited 90 Day Warranty
    pdm:Housing Material: Brass
    pdm:Port 1 Center To Port 2 Center Length: 9.460 IN
    pdm:internal_sku: HLY34-150
    pdm:line_code: HLY
    pdm:Category: Air and Fuel Delivery
    pdm:part type: Carburetor Fuel Log
    pdm:Sub Category: Carburetion
    $58.09
  • HLY37-1543 Fast Kit Carburetor

    Holley

    Part #: 37-1543

    HLY37-1543 Fast Kit Carburetor

    pdm:Barrel Quantity: 2
    pdm:Flange Included: No
    pdm:Brand: Holley
    pdm:Diaphragm Type: Single
    pdm:Carburetor Type: Performance
    pdm:Grade Type: Performance
    pdm:Emission Code: 5
    pdm:Kit Type: Fast Kit
    pdm:Mounting Bracket Included: No
    pdm:Float Included: No
    pdm:Gasket Or Seal Included: Yes
    pdm:Model: 2300
    pdm:Accelerator Pump Included: Yes
    pdm:line_code: HLY
    pdm:Warranty: Manufacturer's Limited 90 Day Warranty
    pdm:Needle Included: Yes
    pdm:Seat Included: Yes
    pdm:internal_sku: HLY37-1543
    pdm:Product Type: Rebuild Kit
    pdm:Warning: California Proposition 65
    pdm:Sub Category: Carburetion
    pdm:part type: Carburetor Repair Kit
    pdm:Category: Air and Fuel Delivery
    $46.10
  • HLY37-605 Renew Kit Carburetor

    Holley

    Part #: 37-605

    HLY37-605 Renew Kit Carburetor

    pdm:Barrel Quantity: 4
    pdm:Brand: Holley
    pdm:Kit Type: Renew Kit
    pdm:Carburetor Type: Performance
    pdm:Accelerator Pump Included: Yes
    pdm:Emission Code: 5
    pdm:Mounting Bracket Included: No
    pdm:Flange Included: No
    pdm:Float Included: No
    pdm:Model: 4165
    pdm:Gasket Or Seal Included: Yes
    pdm:Product Type: Rebuild Kit
    pdm:Needle Included: Yes
    pdm:line_code: HLY
    pdm:Warranty: Manufacturer's Limited 90 Day Warranty
    pdm:internal_sku: HLY37-605
    pdm:Warning: California Proposition 65
    pdm:Seat Included: Yes
    pdm:Sub Category: Carburetion
    pdm:Category: Air and Fuel Delivery
    pdm:part type: Carburetor Repair Kit
    $73.29
  • MRG1556G Adjustable Fuel Line

    Mr Gasket

    Part #: 1556G

    MRG1556G Adjustable Fuel Line

    pdm:Product Type: Fuel Line
    pdm:part type: Fuel Line
    pdm:Brand: Mr. Gasket
    pdm:Weight: 0.63
    pdm:Emission Code: 5
    pdm:Sub Category: Fuel Injection System and Related Components
    pdm:line_code: MRG
    pdm:Category: Air and Fuel Delivery
    pdm:Warning: California Proposition 65
    pdm:internal_sku: MRG1556G
    pdm:Model: 4150
    pdm:Hose Barb: 3/8 IN
    pdm:Warranty: Manufacturer's Limited 90 Day Warranty
    $56.74
  • MRG1561 Fuel Pressure Gauge

    Mr Gasket

    Part #: 1561

    MRG1561 Fuel Pressure Gauge

    Engine Make: Mr Gasket
    pdm:Diameter: 1.5 IN
    pdm:Function: Analog
    pdm:Gauge Type: Fuel Pressure
    pdm:Brand: Mr. Gasket
    pdm:Gauge Bezel Color: Silver
    pdm:Adapter NPT Size ( A ): 1/8 NPT MALE
    pdm:Emission Code: 5
    pdm:Gauge Range: Up to 15 PSI
    pdm:Gauge Background Color: White
    pdm:Male Thread: 1/8 NPT IN
    pdm:Glycerin Filled: No
    pdm:Inlet: 1/8NPT
    pdm:Gauge Writing Color: Black
    pdm:Warning: California Proposition 65
    pdm:internal_sku: MRG1561
    pdm:Product Type: Fuel Pressure Gauge
    pdm:Max Pressure: 15psi
    pdm:Pressure Range: 0-15 PSI
    pdm:Liquid Filled: No
    pdm:Size: 1-1/2 IN
    pdm:Style: Analog
    pdm:line_code: MRG
    pdm:Warranty: Manufacturer's Limited 90 Day Warranty
    pdm:Category: Body
    pdm:part type: Fuel Pressure Gauge
    pdm:Sub Category: Instrument Panel
    $29.84

Why Buy Vehicle Parts from Northern Auto Parts?

40+ Years Experience


Northern Auto Parts has been providing auto parts for all makes and models for over 40 years. We have everything you need to keep your car, truck, or SUV running in peak condition. For engine builders, Northern Auto Parts is one of the best online sources for kits.

Trusted Source for Name-Brand Parts


Northern Auto Parts is recognized by many as the best online source for rebuild components. We carry a wide variety of name-brand components, so you can find the exact parts you need to repair or replace any part of your vehicle. From engine components to exterior parts, we have a vast selection to choose from.

Competitive Pricing


We are committed to affordability without compromising on quality. Our prices provide the best value for your money, whether you’re an automotive technician or a DIY enthusiast.

Why Shop for Air & Fuel System Components at Northern Auto Parts?

Our lineup features everything from high-performance carburetors to fuel injection conversion kits that offer an upgrade from traditional carburetion for improved performance and fuel efficiency. With products from brands we trust in the automotive industry, you're investing in parts that bring a smoother drive quality to your vehicle.

At Northern Auto Parts, we offer a curated selection of the best parts, including Mr. Gasket parts, Edelbrock parts, and Holley parts, designed to deliver the perfect mix of air and fuel to your engine.

Whether you're aiming to achieve peak performance on the track or looking for a reliable upgrade for your daily commute, our air and fuel system components will help your engine operate better and sound smoother.