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Harley Air and Fuel

Harley Air and Fuel

Harley Air and Fuel

Harley Bike Air & Fuel Systems at JJ Motorsports

Optimize your Harley's performance with premium air and fuel components from JJ Motorsports. Our range includes air cleaners, carburetor kits, fuel valves, and enrichener brackets designed for better throttle response, fuel efficiency, and power gains on the road or track. Compatible with Softail, Dyna, Touring, and V-Rod models, these parts feature chrome finishes, high-flow filters, and stainless construction for durability and easy installation.

Shop trusted brands like Vance & Hines for VO2 air cleaners and Pingel for fuel valves. Explore related categories such as Harley engine parts for rebuild kits or Harley exhausts for complete tuning.

Top Harley Air & Fuel Products

Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • DYNOJET Jet Kit - Buell Blast '00-'02 8111

    DYNOJET Jet Kit - Buell Blast '00-'02 8111

    DYNOJET

    $171.10
    If you're running a stock Keihin CV carburetor on your Buell Blast, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your fuel mixture across the entire rev range, unlocking the horsepower and torque your engine is capable of...
    DS290348
    SKU:
    DS290348
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    RECALIBRATION KIT
    RIDING STYLE:
    STREET
    $171.10
    Qty in Cart: 0
    Quantity:
    Price:
    $171.10
    Subtotal:
  • DYNOJET Thunderslide Jet Kit - '00-'06 Twin Cam 8131

    DYNOJET Thunderslide Jet Kit - '00-'06 Twin Cam 8131

    DYNOJET

    $205.54
    If your Twin Cam engine is running rich or struggling with throttle response, a proper jetting solution is essential—stock CV carburetors simply aren't calibrated for modern riding conditions or aftermarket modifications. The DYNOJET Thunderslide Jet Kit...
    DS290349
    SKU:
    DS290349
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    MODEL:
    THUNDERSLIDE
    PRODUCT NAME:
    JET KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $205.54
    Subtotal:
  • DYNOJET Thunderslide Jet Kit - Harley Davidson Twin Cam - 44mm 8733

    DYNOJET Thunderslide Jet Kit - Harley Davidson Twin Cam - 44mm 8733

    DYNOJET

    $251.10
    A properly jetted carburetor is the foundation of responsive throttle control and reliable performance on your Twin Cam engine. The Thunderslide Jet Kit optimizes fuel delivery across the entire throttle range, eliminating lean conditions and dead spots...
    DS290351
    SKU:
    DS290351
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    PRODUCT NAME:
    JET KIT 44 MM KEIHIN CARB
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    MODEL:
    STAGE 7 THUNDERSLIDE
    $251.10
    Qty in Cart: 0
    Quantity:
    Price:
    $251.10
    Subtotal:
  • DYNOJET Stage-7 Thunderslide Jet Kit - Harley Davidson 8708

    DYNOJET Stage-7 Thunderslide Jet Kit - Harley Davidson 8708

    DYNOJET

    $251.10
    If you're running an 80+ horsepower engine and want throttle response that matches your bike's power output, a proper fuel delivery tune is non-negotiable. The DYNOJET Stage-7 Thunderslide Jet Kit optimizes your carburetor's air-fuel ratio across the...
    DS290352
    SKU:
    DS290352
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    JET KIT
    UNITS:
    KIT
    MODEL:
    STAGE 7 THUNDERSLIDE
    Qty in Cart: 0
    Quantity:
    Price:
    $251.10
    Subtotal:
  • DYNOJET Thunderslide Jet Kit - Twin Cam '00-'06 8731 DYNOJET Thunderslide Jet Kit - Twin Cam '00-'06 8731

    DYNOJET Thunderslide Jet Kit - Twin Cam '00-'06 8731

    DYNOJET

    $251.10
    If you're running a Twin Cam carbureted engine and want responsive throttle control paired with measurable power gains, a properly jetted carburetor is non-negotiable. The DYNOJET Thunderslide Jet Kit addresses both fuel delivery precision and throttle...
    DS290356
    SKU:
    DS290356
    Availability:
    Ships Same Business Day
    Weight:
    0.44 LBS
    MODEL:
    STAGE 7 THUNDERSLIDE
    PRODUCT NAME:
    JET KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $251.10
    Qty in Cart: 0
    Quantity:
    Price:
    $251.10
    Subtotal:
  • DYNOJET Jet Kit - Twin Cam 8120

    DYNOJET Jet Kit - Twin Cam 8120

    DYNOJET

    $171.10
    If you're running a stock Keihin CV carburetor on your Twin Cam 8120, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your fuel mapping across the entire throttle range, unlocking the horsepower and torque your engine is capable...
    DS290148
    SKU:
    DS290148
    Availability:
    Ships Same Business Day
    Weight:
    0.63 LBS
    PRODUCT NAME:
    RECALIBRATION KIT
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    $171.10
    Qty in Cart: 0
    Quantity:
    Price:
    $171.10
    Subtotal:
  • DYNOJET Thunderslide Jet Kit - Twin Cam 8130

    DYNOJET Thunderslide Jet Kit - Twin Cam 8130

    DYNOJET

    $205.54
    If you're running a Twin Cam 8130 with a CV carburetor, throttle response and fuel delivery are the limiting factors between where your engine is now and where it could be. The DYNOJET Thunderslide Jet Kit addresses both by optimizing slide opening rate...
    DS290149
    SKU:
    DS290149
    Availability:
    Ships Same Business Day
    Weight:
    0.63 LBS
    RIDING STYLE:
    STREET
    MODEL:
    THUNDERSLIDE
    PRODUCT NAME:
    JET KIT
    UNITS:
    KIT
    $205.54
    Qty in Cart: 0
    Quantity:
    Price:
    $205.54
    Subtotal:
  • DYNOJET Jet Kit - Harley-Davison 883/12/1340 8102 DYNOJET Jet Kit - Harley-Davison 883/12/1340 8102

    DYNOJET Jet Kit - Harley-Davison 883/12/1340 8102

    DYNOJET

    $171.10
    If you're running a stock Keihin CV carburetor on your Harley-Davidson 883, 1200, or 1340cc engine, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your carb to unlock the full potential of your engine, delivering broad-range...
    DS289303
    SKU:
    DS289303
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    PRODUCT NAME:
    RECALIBRATION KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $171.10
    Subtotal:
  • DYNOJET Thunderslide Jet Kit - '04-'06 XL 8136

    DYNOJET Thunderslide Jet Kit - '04-'06 XL 8136

    DYNOJET

    $205.54
    If you're running a stock or modified CV carburetor on your '04-'06 XL, the DYNOJET Thunderslide Jet Kit directly improves throttle response and engine efficiency by optimizing how your slide moves relative to fuel delivery. The precision-engineered lift...
    10070005
    SKU:
    10070005
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    PRODUCT NAME:
    JET KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    MODEL:
    THUNDERSLIDE
    $205.54
    Qty in Cart: 0
    Quantity:
    Price:
    $205.54
    Subtotal:
  • DYNOJET Power Vision Shop Kit Tuner PV-TK3R

    DYNOJET Power Vision Shop Kit Tuner PV-TK3R

    DYNOJET

    $911.09
    If you're running a shop without access to a Dynojet dyno, the Power Vision Shop Kit Tuner eliminates the barrier to professional-grade bike tuning. This AutoTune Pro Module lets you tune multiple motorcycles from a single base unit, making it the most...
    10202796
    SKU:
    10202796
    Availability:
    Ships Same Business Day
    Weight:
    4.15 LBS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    UNITS:
    KIT
    PRODUCT NAME:
    TUNER KIT
    BASE COLOR:
    BLACK
    $911.09
    Qty in Cart: 0
    Quantity:
    Price:
    $911.09
    Subtotal:
  • DYNOJET Jet Kit - Twin Cam '00-'06 8121

    DYNOJET Jet Kit - Twin Cam '00-'06 8121

    DYNOJET

    $136.65
    If you're running a stock Keihin CV carburetor on your Twin Cam and want to unlock the engine's true performance potential, a proper jetting recalibration is non-negotiable. The DYNOJET Jet Kit delivers broad-range performance gains across the RPM band...
    DS290347
    SKU:
    DS290347
    Availability:
    Ships Same Business Day
    Weight:
    0.34 LBS
    PRODUCT NAME:
    RECALIBRATION KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $136.65
    Qty in Cart: 0
    Quantity:
    Price:
    $136.65
    Subtotal:
  • DYNOJET Jet Kit - XL 883 '04-'06 8134

    DYNOJET Jet Kit - XL 883 '04-'06 8134

    DYNOJET

    $136.65
    If you're running a stock Keihin CV carburetor on your XL 883, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your fuel delivery across the entire rpm range, unlocking the power your engine was designed to produce while...
    10070001
    SKU:
    10070001
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    PRODUCT NAME:
    RECALIBRATION KIT
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    $136.65
    Qty in Cart: 0
    Quantity:
    Price:
    $136.65
    Subtotal:
  • DYNOJET Power Vision Target Tune with O2 Sensor - Harley-Davidson TT-5

    DYNOJET Power Vision Target Tune with O2 Sensor - Harley-Davidson TT-5

    DYNOJET

    $706.65
    The DYNOJET Power Vision Target Tune with O2 Sensor gives you real-time fuel mapping control without sacrificing your factory diagnostics or reliability. By allowing your OEM ECM to interpret wideband oxygen sensor signals, you achieve the precision...
    10202491
    SKU:
    10202491
    Availability:
    Ships Same Business Day
    Weight:
    1.70 LBS
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    TUNING MODULE
    UNITS:
    KIT
    BASE COLOR:
    BLACK
    PHYSICAL CONNECTION:
    PLUG-IN (OEM STYLE CONNECTORS)
    BASE COLOR:
    GRAY
    BASE COLOR:
    RED
    BASE COLOR:
    WHITE
    COLOR/FINISH:
    GRAY
    COLOR/FINISH:
    RED
    COLOR/FINISH:
    WHITE
    FEATURE:
    INCLUDES OXYGEN SENSOR
    MODEL:
    TARGET TUNE
    PROGRAMMING:
    PRE-PROGRAMMED
    RIDING STYLE:
    STREET
    $706.65
    Qty in Cart: 0
    Quantity:
    Price:
    $706.65
    Subtotal:
  • DYNOJET Jet Kit - Harley-Davidson 883/12/1340 8105

    DYNOJET Jet Kit - Harley-Davidson 883/12/1340 8105

    DYNOJET

    $136.65
    If you're running a stock Keihin CV carburetor on your Harley-Davidson 883, 1200, or 1340, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your carb's jetting and needle positions to unlock the full potential of your engine,...
    DS289306
    SKU:
    DS289306
    Availability:
    Ships Same Business Day
    Weight:
    0.63 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    RECALIBRATION KIT
    RIDING STYLE:
    STREET
    $136.65
    Qty in Cart: 0
    Quantity:
    Price:
    $136.65
    Subtotal:
  • DYNOJET Jet Kit - XL1200 '04-'06 8135

    DYNOJET Jet Kit - XL1200 '04-'06 8135

    DYNOJET

    $136.65
    If you're running a stock Keihin CV carburetor on your XL1200, you're leaving performance on the table. The DYNOJET Jet Kit recalibrates your fuel delivery across the entire RPM range, unlocking the power your engine was designed to produce while...
    10070002
    SKU:
    10070002
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    PRODUCT NAME:
    RECALIBRATION KIT
    $136.65
    Qty in Cart: 0
    Quantity:
    Price:
    $136.65
    Subtotal:
  • DYNOJET Power Vision Target Tune with O2 Sensor - Harley-Davidson TT-4

    DYNOJET Power Vision Target Tune with O2 Sensor - Harley-Davidson TT-4

    DYNOJET

    $706.65
    If you're running a custom tune on your Harley-Davidson, you know that getting your air-fuel ratio dialed in makes the difference between a bike that merely runs and one that performs predictably across all conditions. The DYNOJET Power Vision Target...
    10202489
    SKU:
    10202489
    Availability:
    Ships Same Business Day
    Weight:
    1.65 LBS
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    TUNING MODULE
    UNITS:
    KIT
    BASE COLOR:
    BLACK
    BASE COLOR:
    WHITE
    PHYSICAL CONNECTION:
    PLUG-IN (OEM STYLE CONNECTORS)
    RIDING STYLE:
    STREET
    BASE COLOR:
    GRAY
    BASE COLOR:
    RED
    COLOR/FINISH:
    GRAY
    COLOR/FINISH:
    RED
    COLOR/FINISH:
    WHITE
    FEATURE:
    INCLUDES OXYGEN SENSOR
    MODEL:
    TARGET TUNE
    PROGRAMMING:
    PRE-PROGRAMMED
    $706.65
    Qty in Cart: 0
    Quantity:
    Price:
    $706.65
    Subtotal:
  • FUEL-TOOL Fuel Line O-Ring - 5-Pack MC600-5 FUEL-TOOL Fuel Line O-Ring - 5-Pack MC600-5

    FUEL-TOOL Fuel Line O-Ring - 5-Pack MC600-5

    FUEL-TOOL

    $18.95
    Fuel system leaks compromise performance and safety—and worn O-rings are the silent culprit most overlook. This 5-pack of Viton® replacement O-rings gives you the sealing integrity your fuel lines demand, eliminating weeping connections and preventing...
    07060294
    SKU:
    07060294
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    STREET
    TYPE:
    FUEL LINE
    PRODUCT NAME:
    O-RING
    UNITS:
    5 PACK
    MATERIAL:
    VITON
    $18.95
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • FUEL-TOOL Fuel Line Rebuild Kit MC700 FUEL-TOOL Fuel Line Rebuild Kit MC700

    FUEL-TOOL Fuel Line Rebuild Kit MC700

    FUEL-TOOL

    $18.95
    Fuel line integrity is non-negotiable in high-performance applications—a failing connection can compromise fuel delivery and create safety hazards. The FUEL-TOOL MC700 gives you a cost-effective way to restore your Delphi EFI fuel line connectors to OEM...
    07060295
    SKU:
    07060295
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MATERIAL:
    BRASS
    MATERIAL:
    STAINLESS STEEL
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    TYPE:
    FUEL LINE
    UNITS:
    KIT
    PRODUCT NAME:
    REBUILD KIT
    $18.95
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • FUEL-TOOL Replacement Fuel Check Valve O-Ring - 5-Pack MC200-5

    FUEL-TOOL Replacement Fuel Check Valve O-Ring - 5-Pack MC200-5

    FUEL-TOOL

    $18.95
    Fuel check valve O-rings degrade over time, leading to pressure loss, fuel leaks, and potential system failures. Rather than replacing an entire check valve assembly, this targeted replacement addresses the root cause—saving you time and money on your...
    07060222
    SKU:
    07060222
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MATERIAL:
    VITON
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    O-RING
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    BASE COLOR:
    BLACK
    TYPE:
    CHECK VALVE
    $18.95
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • FUEL-TOOL Check Valve Rebuild Kit MC300

    FUEL-TOOL Check Valve Rebuild Kit MC300

    FUEL-TOOL

    $18.95
    Check valve failure forces expensive fuel system replacements, but the FUEL-TOOL MC300 Rebuild Kit lets you restore full functionality without scrapping serviceable components. This kit delivers OEM-quality performance at a fraction of replacement cost,...
    07060223
    SKU:
    07060223
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MATERIAL:
    BRASS
    PRODUCT NAME:
    REBUILD KIT
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    NICKEL-PLATED
    RIDING STYLE:
    STREET
    BASE COLOR:
    BLACK
    BASE FINISH:
    NICKEL
    MATERIAL:
    STAINLESS STEEL
    TYPE:
    CHECK VALVE
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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