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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  • HLY0-1850S

    Holley

    Part #: 0-1850S

    HLY0-1850S

    pdm:Body Color: Polished
    pdm:Barrel Quantity: 4
    pdm:Booster Design: Straight
    pdm:Body Finish: Polished
    pdm:Billet Color: None
    pdm:Brand: Holley
    pdm:Booster: Straight
    pdm:Barrels: 4
    pdm:Carburetor Material: Aluminum
    pdm:Carburetor Use: Street
    pdm:Choke Type: Manual
    pdm:Condition: New
    pdm:CFM: 600
    pdm:Emission Code: 3
    pdm:Circuit: 2
    pdm:Cubic Feet Per Minute Rating: 600
    pdm:Flange Type: Square/4150
    pdm:Linkage Attached: Yes
    pdm:Finish: Shiny
    pdm:Grade Type: Performance
    pdm:Fuel: Gasoline
    pdm:Fuel Inlet: Single
    pdm:Marine Approved: No
    pdm:Choke: Manual
    pdm:Product Type: Carburetor
    pdm:Mounting Hole Quantity: 4
    pdm:Material: Aluminum
    pdm:Primary Power Valve: 6.5
    pdm:Model: 4160
    pdm:Primary Main Jet: 66
    pdm:Marine Use: No
    pdm:Primary Pump Nozzle Size: 31
    pdm:Secondaries: Vacuum
    pdm:Primary Jet Diameter: 66
    pdm:Spacer Included: No
    pdm:Sale Category: Carburetors and Components
    pdm:Throttle Bore: 1.563 inch
    pdm:Warranty: Limited 90 Day
    pdm:line_code: HLY
    pdm:internal_sku: HLY0-1850S
    pdm:Supercharged Application: No
    pdm:Warning: California Proposition 65
    $437.95
  • HLY0-4412S

    Holley

    Part #: 0-4412S

    HLY0-4412S

    pdm:Body Color: Polished
    pdm:Barrel Quantity: 2
    pdm:Barrels: 2
    pdm:Body Finish: Polished
    pdm:Body Material: Aluminum
    pdm:CFM: 500
    pdm:Booster: Downleg
    pdm:Carburetor Use: Street
    pdm:Brand: Holley
    pdm:Booster Design: Downleg
    pdm:Carburetor Material: Aluminum
    pdm:Choke Type: Manual
    pdm:Cubic Feet Per Minute Rating: 500
    pdm:Choke: Manual
    pdm:Condition: New
    pdm:Finish: Shiny
    pdm:Fuel Inlet: Single
    pdm:Emission Code: 3
    pdm:Flange Type: 2300 2-BBL
    pdm:Mounting Hole Quantity: 4
    pdm:Marine Use: No
    pdm:Marine Approved: No
    pdm:Grade Type: Performance
    pdm:Linkage Attached: Yes
    pdm:Material: Aluminum
    pdm:Gasket Or Seal Included: Yes
    pdm:Model: 2300
    pdm:Primary Main Jet: 73
    pdm:Primary Power Valve: 5.0
    pdm:Fuel: Gasoline
    pdm:Sale Category: Carburetors and Components
    pdm:Street Legal: Yes
    pdm:Primary Jet Diameter: 73
    pdm:Supercharged Application: No
    pdm:Spacer Included: No
    pdm:Throttle Bore: 1.688 inch
    pdm:Primary Pump Nozzle Size: 28
    pdm:Warning: California Proposition 65
    pdm:Product Type: Carburetor
    pdm:line_code: HLY
    pdm:Vacuum Ports: 1 timed (spark) port, 1 full, and 1 PCV port
    pdm:Venturii Size: 1.376 inch
    pdm:Warranty: Limited 90 Day
    pdm:internal_sku: HLY0-4412S
    pdm:Secondaries: None
    $486.95
  • HLY0-4777S

    Holley

    Part #: 0-4777S

    HLY0-4777S

    pdm:CFM: 650
    pdm:Choke: Manual
    pdm:Cubic Feet Per Minute Rating: 650
    pdm:Choke Type: Manual
    pdm:Marine Approved: No
    pdm:Linkage Attached: Yes
    pdm:Booster: Straight
    pdm:Marine Use: No
    pdm:Carburetor Use: Performance and Race
    pdm:Emission Code: 3
    pdm:Carburetor Material: Aluminum
    pdm:Flange Type: Square/4150
    pdm:Model: 4150
    pdm:Fuel Inlet: Dual
    pdm:Fuel: Gasoline
    pdm:Finish: Shiny
    pdm:Booster Design: Straight
    pdm:Material: Aluminum
    pdm:Primary Jet Diameter: 67
    pdm:Mounting Hole Quantity: 4
    pdm:Grade Type: Performance
    pdm:Primary Power Valve: 6.5
    pdm:Condition: New
    pdm:Brand: Holley
    pdm:Primary Main Jet: 67
    pdm:Barrel Quantity: 4
    pdm:Body Finish: Polished
    pdm:Body Color: Polished
    pdm:Barrels: 4
    pdm:Product Type: Carburetor
    pdm:Secondary Main Jet: 73
    pdm:Secondaries: Mechanical
    pdm:Sale Category: Carburetors and Components
    pdm:Secondary Pump Nozzle Size: 28
    pdm:Warning: California Proposition 65
    pdm:Primary Pump Nozzle Size: 28
    pdm:Throttle Bore: 1.688 inch
    pdm:Supercharged Application: No
    pdm:line_code: HLY
    pdm:Vacuum Ports: 1 timed (spark) port, 1 full, and 1 PCV port
    pdm:Warranty: Limited 90 Day
    pdm:Spacer Included: No
    pdm:internal_sku: HLY0-4777S
    $651.95
  • HLY0-4779S

    Holley

    Part #: 0-4779S

    HLY0-4779S

    pdm:Body Color: Polished
    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:CFM: 750
    pdm:Fuel Inlet: Dual
    pdm:Finish: Shiny
    pdm:Cubic Feet Per Minute Rating: 750
    pdm:Carburetor Use: Performance and Race
    pdm:Marine Use: No
    pdm:Fuel: Gasoline
    pdm:Marine Approved: No
    pdm:Choke: Manual
    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 Main Jet: 70
    pdm:Primary Pump Nozzle Size: 28
    pdm:Secondary Pump Nozzle Size: 31
    pdm:Secondary Main Jet: 80
    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:Sale Category: Carburetors and Components
    pdm:line_code: HLY
    pdm:Secondaries: Mechanical
    pdm:Supercharged Application: No
    pdm:Warning: California Proposition 65
    pdm:internal_sku: HLY0-4779S
    pdm:Throttle Bore: 1.688 inch
    pdm:Warranty: Limited 90 Day
    $693.95
  • HLY0-80457S

    Holley

    Part #: 0-80457S

    HLY0-80457S

    pdm:Body Color: Polished
    pdm:Billet Color: None
    pdm:Body Material: Aluminum
    pdm:Barrel Quantity: 4
    pdm:Body Finish: Polished
    pdm:Booster: Straight
    pdm:Booster Design: Straight
    pdm:Barrels: 4
    pdm:Brand: Holley
    pdm:Carburetor Material: Aluminum
    pdm:Carburetor Use: Street
    pdm:Cubic Feet Per Minute Rating: 600
    pdm:Emission Code: 3
    pdm:Circuit: 2
    pdm:Choke Type: Electric
    pdm:Choke: Electric
    pdm:CFM: 600
    pdm:Condition: New
    pdm:Flange Type: Square/4150
    pdm:Grade Type: Performance
    pdm:Marine Approved: No
    pdm:Marine Use: No
    pdm:Model: 4160
    pdm:Finish: Shiny
    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 Main Jet: 66
    pdm:Sale Category: Carburetors and Components
    pdm:Primary Jet Diameter: 66
    pdm:Mounting Hardware Included: Yes
    pdm:Secondaries: Vacuum
    pdm:Product Type: Carburetor
    pdm:Street Legal: Yes
    pdm:Spacer Included: No
    pdm:Secondary Barrel Type: Vacuum
    pdm:Supercharged Application: No
    pdm:Warning: California Proposition 65
    pdm:Throttle Bore: 1.563 inch
    pdm:Warranty: Limited 1 Year Warranty
    pdm:internal_sku: HLY0-80457S
    pdm:line_code: HLY
    $456.95
  • HLY12-327-11

    Holley

    Part #: 12-327-11

    HLY12-327-11

    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:Sale Category: Air and Fuel Delivery
    pdm:Mounting Hole Quantity: 2
    pdm:internal_sku: HLY12-327-11
    pdm:Warranty: Limited 90 Day
    pdm:line_code: HLY
    pdm:Brand: Holley
    $144.95
  • HLY125-35

    Holley

    Part #: 125-35

    HLY125-35

    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:Sale Category: Carburetors and Components
    pdm:Warranty: Limited 90 Day
    pdm:Emission Code: 5
    pdm:internal_sku: HLY125-35
    $14.44
  • HLY125-55

    Holley

    Part #: 125-55

    HLY125-55

    pdm:line_code: HLY
    pdm:Gasket Or Seal Included: Yes
    pdm:Product Type: Power Valve
    pdm:internal_sku: HLY125-55
    pdm:Warranty: Limited 90 Day
    pdm:Single Or Dual Stage: Single
    pdm:Brand: Holley
    pdm:Sale Category: Carburetors and Components
    pdm:Emission Code: 5
    pdm:Grade Type: Performance
    pdm:Warning: California Proposition 65
    pdm:Opening Vacuum: 5.5 INHG
    $15.46
  • HLY34-150

    Holley

    Part #: 34-150

    HLY34-150

    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: Limited 90 Day
    pdm:Sale Category: Carburetors and Components
    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
    $51.49
  • HLY37-1543

    Holley

    Part #: 37-1543

    HLY37-1543

    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: Limited 90 Day
    pdm:Sale Category: Carburetors and Components
    pdm:Needle Included: Yes
    pdm:Seat Included: Yes
    pdm:internal_sku: HLY37-1543
    pdm:Product Type: Rebuild Kit
    pdm:Warning: California Proposition 65
    $40.89

Revamp Your Ride with Our Engine Rebuild Kits

Our engine rebuild kits provide all the necessary components for a complete engine overhaul, ensuring optimal performance and longevity. Get your vehicle back on the road with the quality you deserve.

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.

Trusted Source for Name-Brand Parts
We carry a wide variety of name-brand components, so you can find the exact parts you need to repair or replace anything on 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.