Big Twin Air Intake & Fuel System

    Filter
      188 products
      A close-up of a motorcycle engine showcases a Sportster points cover with a red and black emblem. Shiny chrome parts reflect light, highlighting Pangor Cycles' Cheap Sucker Bird Catcher/Air Cleaner for Harley-Davidson Carburetors, against a blurred background for sleek focus.
      A close-up of a motorcycle engine showcases a Sportster points cover with a red and black emblem. Shiny chrome parts reflect light, highlighting Pangor Cycles' Cheap Sucker Bird Catcher/Air Cleaner for Harley-Davidson Carburetors, against a blurred background for sleek focus.
      Pangor Cycles
      Cheap Sucker Bird Catcher/Air Cleaner for Harley-Davidson Carburetors and EFI Throttle Bodies
      $49.95
      A disassembled TC Bros. Chrome Louvered Air Cleaner for HD CV Carbs & EFI with a chrome cover, red filter element, black mounting base, and hardware including screws and bolts—perfect for Harley Davidson Big Twin and Sportster models.
      A disassembled TC Bros. Chrome Louvered Air Cleaner for HD CV Carbs & EFI with a chrome cover, red filter element, black mounting base, and hardware including screws and bolts—perfect for Harley Davidson Big Twin and Sportster models.
      TC Bros.
      TC Bros. Chrome Louvered Air Cleaner for HD CV Carbs & EFI
      $62.95
      170 reviews
      Harley-Davidson aftermarket carburetor filter kit with TC Bros Breather Bolts For 1991-2022 Sportster & EVO Big Twin for improved crankcase venting.
      A close up of a motorcycle with TC Bros Breather Bolts For 1991-2022 Sportster & EVO Big Twin aftermarket air cleaner and a red engine.
      TC Bros.
      TC Bros Breather Bolts For 1991-2022 Sportster & EVO Big Twin
      $44.95
      67 reviews
      TC Bros. offers TC Bros. e-gift cards for motorcycle enthusiasts.
      TC Bros.
      TC BROS. GIFT CARD
      from $10.00
      A TC Bros. Chrome Louvered Air Cleaner for S&S Super E & G Carbs with a chrome cover, a cylindrical red air filter, a black mounting bracket, three bolts, a screw, and a three-spoke wing nut are displayed, perfect for V-Twin engines.
      A TC Bros. Chrome Louvered Air Cleaner for S&S Super E & G Carbs with a chrome cover, a cylindrical red air filter, a black mounting bracket, three bolts, a screw, and a three-spoke wing nut are displayed, perfect for V-Twin engines.
      TC Bros.
      TC Bros. Chrome Louvered Air Cleaner for S&S Super E & G Carbs
      $62.95
      47 reviews
      A set of Universal Frisco Gas Tank Mounting Kit by TC Bros bolts and washers for a motorcycle, including Stainless steel button head bolts.
      A close up of a motorcycle engine with Universal Frisco Gas Tank Mounting Kit by TC Bros mild steel tophat bungs.
      TC Bros.
      Universal Frisco Gas Tank Mounting Kit by TC Bros
      $28.95
      41 reviews
      The TC Bros. Black Louvered Air Cleaner for Bendix Zenith & Keihin Butterfly Carbs includes a filter, cover, mounting plate, and fasteners, all set against a white background.
      The TC Bros. Black Louvered Air Cleaner for Bendix Zenith & Keihin Butterfly Carbs includes a filter, cover, mounting plate, and fasteners, all set against a white background.
      TC Bros.
      TC Bros. Black Louvered Air Cleaner for HD CV Carbs & EFI
      $62.95
      The Vance & Hines FP4 Fuelpak Tuner for 2011-2022 Harley is a game-changer for Harley-Davidson models, providing live sensor data for optimal performance.
      The Vance & Hines FP4 Fuelpak Tuner for 2011-2022 Harley is a game-changer for Harley-Davidson models, providing live sensor data for optimal performance.
      Vance & Hines
      Vance & Hines FP4 Fuelpak Tuner for 2011-2022 Harley
      $459.99
      A durable TC Bros. Reserve Fuel Bottle with the word texas on it.
      A durable TC Bros. Reserve Fuel Bottle on a white background.
      TC Bros.
      TC Bros. Reserve Fuel Bottle
      $19.95
      17 reviews
      A chrome air filter, the Arlen Ness Big Suckerâ„¢ Stage 1 Air Filter Kit - '01-'17 Twin Cam EFI & '99-'06 CV Carb - Chrome, on a white background.
      An Arlen Ness Big Suckerâ„¢ Stage 1 Air Filter Kit - '01-'17 Twin Cam EFI & '99-'06 CV Carb - Chrome for a motorcycle.
      Arlen Ness
      Big Suckerâ„¢ Stage 1 Air Filter Kit - '01-'17 Twin Cam EFI & '99-'06 CV Carb - Chrome
      $219.95
      A set of Moto Iron® Sportster Gas Tank Rubber Mounting Kits on a white background for custom applications.
      A set of Moto Iron® Sportster Gas Tank Rubber Mounting Kits on a white background for custom applications.
      Moto Iron®
      Sportster Gas Tank Rubber Mounting Kit
      $28.95
      24 reviews
      The Kreem Gas Tank Sealer Kit is a kit designed to prevent internal rust and seal fuel tanks.
      Kreem
      Kreem Gas Tank Sealer Kit
      $54.95
      10 reviews
      Two TC Bros breather bolts and washers on a white background.
      A pair of TC Bros Breather Bolts For 1991-2022 Sportster & EVO Big Twin - Black on a white background.
      TC Bros.
      TC Bros Breather Bolts For 1991-2022 Sportster & EVO Big Twin - Black
      $49.95
      Two TC Bros 3/8 NPT Steel Weld In Petcock Bungs on a white background.
      Two TC Bros. 3/8 NPT Steel Weld In Petcock Bungs on a white background.
      TC Bros.
      3/8 NPT Steel Weld In Petcock Bungs by TC Bros
      $19.95
      6 reviews
      A TC Bros. Choke Relocation Kit with bolts and screws for the highest quality Harley Davidson Keihin CV Carburetors.
      A close up of the TC Bros. Choke Relocation Kit for Harley Davidson CV Carburetors, the highest quality air filter on a motorcycle.
      TC Bros.
      TC Bros. Choke Relocation Kit for Harley Davidson CV Carburetors
      $19.95
      37 reviews
      A Prism Supply Petcock - 90° 1/4" NPT - Stainless on a white background from Prism Supply.
      A Prism Supply Petcock - 90° 1/4
      Prism Supply
      Prism Supply Petcock - 90° 1/4" NPT - Stainless
      $129.99
      A Biker's Choice Keihin CV Carb Rebuild Kit Fits Sportster 88-06, Big Twin 90-06 with gaskets and seals.
      Biker's Choice
      Keihin CV Carb Rebuild Kit Fits Sportster 88-06, Big Twin 90-06
      $24.95
      7 reviews
      A set of TC Bros breather bolts for all Harley Twin Cam Engines, including crankcase venting.
      TC Bros Breather Bolts For all Harley Twin Cam Engines by TC Bros. aftermarket air cleaners.
      TC Bros.
      TC Bros Breather Bolts For all Harley Twin Cam Engines
      $44.95
      21 reviews
      A Moto Iron® Cam Lock Gas Cap on a white background.
      A close up of a motorcycle with a red and black paint job featuring the Moto Iron® Cam Lock Gas Cap, a chrome plated steel vented gas cap.
      Moto Iron®
      Cam Lock Gas Cap
      $14.95
      21 reviews
      Motorcycle fuel management system with two connected oxygen sensors and integrated ThunderMax ECM with Integral Auto Tune System for Harley M8 Softail 21-24.
      Motorcycle fuel management system with two connected oxygen sensors and integrated ThunderMax ECM with Integral Auto Tune System for Harley M8 Softail 21-24.
      ThunderMax
      ThunderMax ECM With Integral Auto Tune System For Harley M8 Softail 21-24
      $1,170.95
      A vintage style TC Bros. Finned Polished Air Cleaner S&S Super E & G Carbs on a white background.
      A TC Bros. Finned Polished Air Cleaner for a Harley Davidson motorcycle.
      TC Bros.
      TC Bros. Finned Polished Air Cleaner S&S Super E & G Carbs
      $129.95
      6 reviews
      A Prism Supply Petcock - 90° 1/4" NPT - Brass fitting on a white background.
      A Prism Supply Petcock - 90° 1/4
      Prism Supply
      Prism Supply Petcock - 90° 1/4" NPT - Brass
      $109.99
      A ThunderMax ECM with Autotune closed-loop system for Harley 2001-2010, a black box with two wires attached to it.
      A set of ThunderMax ECM With Autotune Closed Loop System For Harley 2001-2010 wires and cables for a car.
      ThunderMax
      ThunderMax ECM With Autotune Closed Loop System For Harley 2001-2010
      $1,088.95
      A black box with two wires attached to it, ThunderMax ECM With Autotune Closed Loop System For Harley Touring 2014-2016, ThunderMax.
      A set of ThunderMax ECM With Autotune Closed Loop System For Harley Touring 2014-2016 wires and cables for a car.
      ThunderMax
      ThunderMax ECM With Autotune Closed Loop System For Harley Touring 2014-2016
      $1,088.95
      A set of TC Bros. brass fittings and hoses, perfect for the TC Bros. DIY Gas Tank Fuel Sight Gauge Kit.
      A set of TC Bros. brass fittings and Tygon hoses is available for DIY enthusiasts.
      TC Bros.
      TC Bros. DIY Gas Tank Fuel Sight Gauge Kit
      $38.95
      5 reviews
      A group of Leather Cushion Washers with 3/8 inch Hole 10 pack, provided by TC Bros., providing paint protection and cushioning on a white background.
      A set of TC Bros. Leather Cushion Washers with 3/8 inch Hole 10 pack, ideal for cushioning and paint protection, on a white background.
      TC Bros.
      Leather Cushion Washers with 3/8 inch Hole 10 pack
      $6.95
      28 reviews
      A Moto Iron® 1/4" Fuel Valve Petcock 90 Degree with a red handle on a white background.
      A close up of a Moto Iron® 1/4
      Moto Iron®
      1/4" Fuel Valve Petcock 90 Degree
      $19.95
      25 reviews
      A Dynojet Power Vision 3 11-20 Softail, 12-17 Dyna, 14-20 Sportster, 14-20 Touring, 15-20 Street 500/7 voltmeter with a cable attached to it.
      A black cable with two wires attached to the Dynojet Power Vision 3 11-20 Softail, 12-17 Dyna, 14-20 Sportster, 14-20 Touring, 15-20 Street 500/7 and ECU.
      Dynojet
      Dynojet Power Vision 3 11-20 Softail, 12-17 Dyna, 14-20 Sportster, 14-20 Touring, 15-20 Street 500/7
      $477.76
      The Vance & Hines FP4 Fuelpak Tuner M8 Touring/Trike/Softail incl. CVO '21-'23 is designed specifically for Harley-Davidson motorcycles.
      The Vance & Hines FP4 Fuelpak Tuner M8 Touring/Trike/Softail incl. CVO '21-'23 is designed specifically for Harley-Davidson motorcycles.
      Vance & Hines
      Vance & Hines FP4 Fuelpak Tuner M8 Touring/Trike/Softail incl. CVO '21-'23
      $459.99
      2 reviews
      A pink and white TC Bros. Finned Raw Air Cleaner HD CV Carbs & EFI, with a vintage style, on a white background.
      A close up of a TC Bros. Finned Raw Air Cleaner HD CV Carbs & EFI vintage style motorcycle with a red and black engine.
      TC Bros.
      TC Bros. Finned Raw Air Cleaner HD CV Carbs & EFI
      $99.95
      10 reviews
      A Prism Supply Bristol Breather - CV Tumbled metal filter cover on a white background.
      A Prism Supply Bristol Breather - CV Tumbled metal filter cover on a white background.
      Prism Supply
      Prism Supply Bristol Breather - CV Tumbled
      $55.00
      The TC Bros. Black Louvered Air Cleaner for S&S Super E & G Carbs is a black air filter assembly kit by TC Bros., featuring a chrome louvered air cleaner, cylindrical filter, mounting bracket, screws, and a star-shaped wing nut.
      The TC Bros. Black Louvered Air Cleaner for S&S Super E & G Carbs is a black air filter assembly kit by TC Bros., featuring a chrome louvered air cleaner, cylindrical filter, mounting bracket, screws, and a star-shaped wing nut.
      TC Bros.
      TC Bros. Black Louvered Air Cleaner for S&S Super E & G Carbs
      $62.95
      A S&S Cycle brass screw on a white background. The S&S Choke Knob Enrichment Device For Super E & G Carburetors is an enrichment device used in carburetors, specifically S&S Super E.
      A brass screw for the S&S Choke Knob Enrichment Device For Super E & G Carburetors on a white background.
      S&S Cycle
      S&S Choke Knob Enrichment Device For Super E & G Carburetors
      $44.95
      16 reviews
      A Wyatt Gatling 1/4" 90 Degree Petcock With Screen Filter with a red handle on a white background.
      Wyatt Gatling
      1/4" 90 Degree Petcock With Screen Filter
      $29.04
      A TC Bros. Finned Black Air Cleaner HD CV Carbs & EFI on a white background.
      A TC Bros. Finned Black Air Cleaner HD CV Carbs & EFI motorcycle parked in front of a barn.
      TC Bros.
      TC Bros. Finned Black Air Cleaner HD CV Carbs & EFI
      $109.95
      10 reviews
      A Pangor Cycles All Thumbs Idle Speed Screw For S&S Super E / G Carburetor - Brass, made in USA, on a white background.
      A close up of a Pangor Cycles All Thumbs Idle Speed Screw For S&S Super E / G Carburetor - Brass made in USA.
      Pangor Cycles
      Pangor Cycles All Thumbs Idle Speed Screw For S&S Super E / G Carburetor - Brass
      $18.95
      33 reviews
      A black V02 Cage Fighter Air Cleaner Kit For Harley 99-17 Twin Cam - Black, designed specifically for Twin Cam motorcycles and manufactured by Vance & Hines.
      Vance & Hines
      V02 Cage Fighter Air Cleaner Kit For Harley 99-17 Twin Cam - Black
      $299.95
      An image of a TC Bros. Air Cleaner/Carb Support Bracket for 1989-1999 Evo Big Twin CV and a gasket on a white background.
      TC Bros.
      TC Bros. Air Cleaner/Carb Support Bracket for 1989-1999 Evo Big Twin CV
      $29.95
      10 reviews
      A white and gold Moto Iron® valve with a 3/8 NPT Male Fuel Valve Petcock 90 Degree on a white background.
      Moto Iron®
      3/8 NPT Male Fuel Valve Petcock 90 Degree
      $27.95
      11 reviews
      A TC Bros. Finned Polished Air Cleaner HD CV Carbs & EFI on a white background.
      Harley-Davidson motorcycle enthusiasts can now customize their bikes with a TC Bros. Finned Polished Air Cleaner HD CV Carbs & EFI to enhance the classic aesthetic.
      TC Bros.
      TC Bros. Finned Polished Air Cleaner HD CV Carbs & EFI
      $129.95
      4 reviews
      Close-up of a mechanical component featuring a "Pangor Cycles" branding on a circular metal plate. Various bolts, valves, and metal parts are visible, suggesting a part of an engine assembly, possibly connected to the Cheap Sucker Bird Catcher/Air Cleaner for S&S Super E Carburetors.
      Close-up of a mechanical component featuring a
      Pangor Cycles
      Cheap Sucker Bird Catcher/Air Cleaner for S&S Super E Carburetors
      $44.95
      A device with a yellow cable attached to it, designed for optimal performance and fuel tuning, known as the Dynojet Power Vision.
      A set of Dynojet Power Vision 3 06-13 Touring, 06-10 Softail, 06-11 Dyna & 07-13 Sportster J1850 ECM cables and a remote control for a car, serving as fuel tuner to optimize the car's performance with Dynojet.
      Dynojet
      Dynojet Power Vision 3 06-13 Touring, 06-10 Softail, 06-11 Dyna & 07-13 Sportster J1850 ECM
      $477.76
      A 1/4" NPT Male Brass Fuel Petcock by Prism Supply Co fitting with a threaded end, perfect for connecting to a gas tank.
      A motorcycle with a Prism Supply gas tank attached to it.
      Prism Supply
      1/4" NPT Male Brass Fuel Petcock by Prism Supply Co
      $94.95
      The Vance & Hines FP4 Fuelpak Tuner for Pre-2014 Harley (see fitment chart) is a device that provides live sensor data and is compatible with Harley-Davidson models.
      Vance & Hines
      Vance & Hines FP4 Fuelpak Tuner for Pre-2014 Harley (see fitment chart)
      $459.99
      A Moto Iron® 1/4" NPT Male Fuel Valve Petcock with a red handle on it, featuring a stainless steel fuel filter screen.
      A stainless steel Moto Iron® 1/4
      Moto Iron®
      1/4" NPT Male Fuel Valve Petcock
      $34.95
      11 reviews
      A Complete Rebuild Kit Super E Carburetor S&S Cycle #11-2923 for a motorcycle by S&S Cycle.
      S&S Cycle
      Complete Rebuild Kit Super E Carburetor S&S Cycle #11-2923
      $112.95
      A HardDrive Chrome Mesh Air Cleaner with screws and nuts, combined with vintage styling.
      HardDrive
      Chrome Mesh Air Cleaner - S&S Carbs
      $74.95
      A disassembled TC Bros. Chrome Louvered Air Cleaner Bendix Zenith & Keihin Butterfly Carbs for Harley Davidson Big Twin Sportster, featuring a chrome cover, red filter element, and black mounting hardware such as a bracket, screws, and a cross-shaped bolt.
      A disassembled TC Bros. Chrome Louvered Air Cleaner Bendix Zenith & Keihin Butterfly Carbs for Harley Davidson Big Twin Sportster, featuring a chrome cover, red filter element, and black mounting hardware such as a bracket, screws, and a cross-shaped bolt.
      TC Bros.
      TC Bros. Chrome Louvered Air Cleaner Bendix Zenith & Keihin Butterfly Carbs
      $62.95
      17 reviews
      A Drag Specialties In-line Glass Mini Fuel Filter - 1/4 on a white background.
      Drag Specialties
      In-line Glass Mini Fuel Filter - 1/4
      $14.95
      A close-up of a TC Bros. High Performance Washable Air Filter Element for TC Bros Air Cleaners.
      A TC Bros High Performance Washable Air Filter Element for TC Bros Air Cleaners for a white background.
      TC Bros.
      High Performance Washable Air Filter Element for TC Bros Air Cleaners
      $26.95
      18 reviews
      An image of a Moto Iron® 13/16" Female Fuel Valve Petcock 90 Degree with a white background.
      A Moto Iron® 13/16
      Moto Iron®
      13/16" Female Fuel Valve Petcock 90 Degree
      $27.95
      7 reviews
      A TC Bros Air Cleaner/Carb Support Bracket for HD Twin Cam Engines with a gasket on a white background.
      A black TC Bros Air Cleaner/Carb Support Bracket for HD Twin Cam Engines mount for a gasket and a gasket designed specifically for an TC Bros Air Cleaner/Carb Support Bracket for HD Twin Cam Engines.
      TC Bros.
      TC Bros Air Cleaner/Carb Support Bracket for HD Twin Cam Engines
      $29.95
      8 reviews
      A Moto Iron® flexible fuel tubing made of plasticized PVC, suitable for gasoline or alcohol type fuel, on a white background.
      Moto Iron®
      1/4" Translucent "Smoke" Black Fuel Line 3ft
      $8.95
      5 reviews
      A Prism Supply polished brass hose connector with a threaded 3/8" NPT Male Brass Fuel Petcock end.
      A motorcycle with a 3/8
      Prism Supply
      3/8" NPT Male Brass Fuel Petcock by Prism Supply Co
      $94.95
      1 review
      A Mikuni HSR to CV Air Cleaner Adapter HS42/001-K for HSR 42/45 Carbs gasket and ring by Biker's Choice.
      A Mikuni HSR to CV Air Cleaner Adapter HS42/001-K for HSR 42/45 Carbs by Biker's Choice threaded end stainless steel pipe fitting.
      Biker's Choice
      Mikuni HSR to CV Air Cleaner Adapter HS42/001-K for HSR 42/45 Carbs
      $29.00
      1 review
      A S&S Cycle stainless steel cup with bolts.
      S&S Cycle
      S&S Velocity Stack - Super E & G Carburetor - 2.5
      $183.95
      A slim Prism Supply Bristol Breather - CV Polished mesh filter cover on a white background.
      A slim Prism Supply Bristol Breather - CV Polished mesh filter cover on a white background.
      Prism Supply
      Prism Supply Bristol Breather - CV Polished
      $60.00
      A Prism Supply Petcock - 1/4" NPT Stainless on a white background, giving off a fuel tank appearance.
      A Prism Supply Petcock - 1/4
      Prism Supply
      Prism Supply Petcock - 1/4" NPT Stainless
      $119.99
      A Prism Supply Petcock - 3/8" NPT - Stainless threaded plug on a white background, suitable for 3/8" NPT.
      A Prism Supply Petcock - 3/8
      Prism Supply
      Prism Supply Petcock - 3/8" NPT - Stainless
      $119.99
      A set of parts for a motorcycle, featuring an S&S Cycle Teardrop Air Cleaner Kit for 2001-'17 HD Stock EFI Big Twin alongside a carburetor for improved performance.
      S&S Cycle
      S&S® Teardrop Air Cleaner Kit for 2001-'17 HD® Stock EFI Big Twin
      $359.95

      Air Intake & Fuel System Upgrades for Harley Big Twins. The Big Twin Air Intake & Fuel System collection at TC Bros is built for riders looking to maximize the performance and efficiency of their Harley-Davidson Big Twin motorcycles. This category includes high-quality air cleaners, carburetor components, and fuel system upgrades designed for models like Softails, Dynas, and Touring bikes. Whether you're chasing more horsepower, smoother throttle response, or a bold custom look, these parts are precision-engineered to deliver. Transform your ride with TC Bros—where performance meets reliability for Harley Big Twin builds.