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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 Auto Tune Kit - Harley-Davidson AT-110

    DYNOJET Auto Tune Kit - Harley-Davidson AT-110

    DYNOJET

    $688.88
    Makes it possible to adjust cruise for best fuel economy as well as larger throttle openings for peak power, User can specify what air/fuel ratio to make each rpm and throttle position percentage combination, Includes 18mm O² sensors and power connector...
    10201532
    SKU:
    10201532
    Availability:
    Ships Same Business Day
    Weight:
    1.44 LBS
    FEATURE:
    INCLUDES OXYGEN SENSOR
    MODEL:
    POWER VISION
    RIDING STYLE:
    STREET
    PHYSICAL CONNECTION:
    PLUG-IN (OEM STYLE CONNECTORS)
    PROGRAMMING:
    PROGRAMMABLE
    OXYGEN SENSOR PLUG SIZE:
    18,00 MM (0,71')
    OXYGEN SENSOR PLUG SIZE METRIC:
    18.00 MM
    PRODUCT NAME:
    TUNING MODULE
    PROGRAMMING:
    PRE-PROGRAMMED
    TYPE:
    AIR/FUEL RATIO
    UNITS:
    EACH
    $688.88
    Qty in Cart: 0
    Quantity:
    Price:
    $688.88
    Subtotal:
  • DYNOJET Auto Tune Kit - Harley-Davidson AT-110B

    DYNOJET Auto Tune Kit - Harley-Davidson AT-110B

    DYNOJET

    $688.88
    Makes it possible to adjust cruise for best fuel economy as well as larger throttle openings for peak power, User can specify what air/fuel ratio to make each rpm and throttle position percentage combination, Includes 18mm O² sensors and power connector...
    10201533
    SKU:
    10201533
    Availability:
    Ships Same Business Day
    Weight:
    1.55 LBS
    TYPE:
    AIR/FUEL RATIO
    UNITS:
    EACH
    OXYGEN SENSOR PLUG SIZE:
    18,00 MM (0,71')
    OXYGEN SENSOR PLUG SIZE METRIC:
    18.00 MM
    PRODUCT NAME:
    TUNING MODULE
    FEATURE:
    INCLUDES OXYGEN SENSOR
    MODEL:
    POWER VISION
    PROGRAMMING:
    PRE-PROGRAMMED
    RIDING STYLE:
    STREET
    FEATURE:
    INCLUDES WELD-IN 18 MM BUNGS
    PHYSICAL CONNECTION:
    PLUG-IN (OEM STYLE CONNECTORS)
    PROGRAMMING:
    PROGRAMMABLE
    $688.88
    Qty in Cart: 0
    Quantity:
    Price:
    $688.88
    Subtotal:
  • DYNOJET Thunderslide Jet Kit - Harley-Davidson 1200 8109

    DYNOJET Thunderslide Jet Kit - Harley-Davidson 1200 8109

    DYNOJET

    $205.54
    Unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response, Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and...
    DS289308
    SKU:
    DS289308
    Availability:
    Ships Same Business Day
    Weight:
    0.69 LBS
    PRODUCT NAME:
    JET KIT
    MODEL:
    THUNDERSLIDE
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $205.54
    Qty in Cart: 0
    Quantity:
    Price:
    $205.54
    Subtotal:
  • DYNOJET Jet Kit - Harley-Davidson 883 Race Kit 8703

    DYNOJET Jet Kit - Harley-Davidson 883 Race Kit 8703

    DYNOJET

    $136.65
    Include the jets, needles, instructions, etc. necessary to recalibrate stock engines with CV carbs, Recalibrate your stock Keihin CV carb to make full use of the performance potential, Kits provide broad-range performance gains and maintain stock...
    DS289450
    SKU:
    DS289450
    Availability:
    Ships Same Business Day
    Weight:
    0.63 LBS
    PRODUCT NAME:
    RECALIBRATION KIT RACE ONLY
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $136.65
    Qty in Cart: 0
    Quantity:
    Price:
    $136.65
    Subtotal:
  • DYNOJET Jet Kit - XL 1200S '98-'03 8103

    DYNOJET Jet Kit - XL 1200S '98-'03 8103

    DYNOJET

    $155.63
    Include the jets, needles, instructions, etc. necessary to recalibrate stock engines with CV carbs, Recalibrate your stock Keihin CV carb to make full use of the performance potential, Kits provide broad-range performance gains and maintain stock...
    DS289451
    SKU:
    DS289451
    Availability:
    Ships Same Business Day
    Weight:
    0.63 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    RECALIBRATION KIT
    RIDING STYLE:
    STREET
    $155.63
    Qty in Cart: 0
    Quantity:
    Price:
    $155.63
    Subtotal:
  • DYNOJET Thunderslide Jet Kit - '98-'03 1200S 8112

    DYNOJET Thunderslide Jet Kit - '98-'03 1200S 8112

    DYNOJET

    $192.25
    Unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response, Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and...
    DS289454
    SKU:
    DS289454
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    PRODUCT NAME:
    JET KIT
    MODEL:
    THUNDERSLIDE
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $192.25
    Qty in Cart: 0
    Quantity:
    Price:
    $192.25
    Subtotal:
  • DYNOJET Jet Kit - Buell Blast '00-'02 8111

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

    DYNOJET

    $155.63
    Include the jets, needles, instructions, etc. necessary to recalibrate stock engines with CV carbs, Recalibrate your stock Keihin CV carb to make full use of the performance potential, Kits provide broad-range performance gains and maintain stock...
    DS290348
    SKU:
    DS290348
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    RECALIBRATION KIT
    RIDING STYLE:
    STREET
    $155.63
    Qty in Cart: 0
    Quantity:
    Price:
    $155.63
    Subtotal:
  • DYNOJET Thunderslide Jet Kit - '00-'06 Twin Cam 8131

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

    DYNOJET

    $205.54
    Unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response, Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and...
    DS290349
    SKU:
    DS290349
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    MODEL:
    THUNDERSLIDE
    PRODUCT NAME:
    JET KIT
    $205.54
    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
    Unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response, Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and...
    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
    Unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response, Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and...
    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
    Unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response, Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and...
    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
    Include the jets, needles, instructions, etc. necessary to recalibrate stock engines with CV carbs, Recalibrate your stock Keihin CV carb to make full use of the performance potential, Kits provide broad-range performance gains and maintain stock...
    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
    Unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response, Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and...
    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
    Include the jets, needles, instructions, etc. necessary to recalibrate stock engines with CV carbs, Recalibrate your stock Keihin CV carb to make full use of the performance potential, Kits provide broad-range performance gains and maintain stock...
    DS289303
    SKU:
    DS289303
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    PRODUCT NAME:
    RECALIBRATION KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $171.10
    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
    Unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response, Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and...
    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

    $888.88
    Tune multiple bikes using just one AutoTune Pro Module, Designed for shops without a Dynojet dyno or Gen4 exhaust pump, Include AutoTune Pro Module with plug-in power supply, and all necessary cables in order to tune J1850 or CAN models, Requires...
    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
    $888.88
    Qty in Cart: 0
    Quantity:
    Price:
    $888.88
    Subtotal:
  • DYNOJET Jet Kit - Twin Cam '00-'06 8121

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

    DYNOJET

    $136.65
    Include the jets, needles, instructions, etc. necessary to recalibrate stock engines with CV carbs, Recalibrate your stock Keihin CV carb to make full use of the performance potential, Kits provide broad-range performance gains and maintain stock...
    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
    Include the jets, needles, instructions, etc. necessary to recalibrate stock engines with CV carbs, Recalibrate your stock Keihin CV carb to make full use of the performance potential, Kits provide broad-range performance gains and maintain stock...
    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

    $688.88
    Includes OEM style connectors to plug into factory O² harness, either 2 or 4 pin versions, Allows the factory ECM to interpret and use wideband O² sensor signals, Retains OEM closed loop and achieves adaptive fuel control strategy, Target fuel table from...
    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
    $688.88
    Qty in Cart: 0
    Quantity:
    Price:
    $688.88
    Subtotal:
  • DYNOJET Jet Kit - Harley-Davidson 883/12/1340 8105

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

    DYNOJET

    $136.65
    Include the jets, needles, instructions, etc. necessary to recalibrate stock engines with CV carbs, Recalibrate your stock Keihin CV carb to make full use of the performance potential, Kits provide broad-range performance gains and maintain stock...
    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:
  • 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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