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
- TODD'S CYCLE Mikuni Choke Bracket - Stainless MKE-1 – Relocates enrichener cable for HSR carbs, made in the U.S.A.
- PAUGHCO Ribbed Teardrop Air Cleaner 701-200 – Chrome-plated aluminum with mini filter and hardware.
- VANCE & HINES VO2 America Air Cleaner - M8 42045FG – High-flow with CNC billet cover and ARP hardware.
- UNI FILTER Old Style Air Cleaner - 6" NU-2439 – Polyurethane for maximum airflow and filtration.
- PINGEL Round Fuel Valve - Flag Chrome - 22mm 6311CRL – High-flow brass valve with adapter nut.
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
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HORSEPOWER, INC Throttle Body - Black - 51mm/1.66 HPI-51D1-16B
HORSEPOWER, INC
$784.95A restrictive OEM throttle body is costing you measurable horsepower and throttle response. The HORSEPOWER, INC 51mm Throttle Body unlocks your engine's full potential with flow bench-validated porting and a precision brass blade that eliminates...10220242- SKU:
- 10220242
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- ALUMINUM
- MODEL:
- CABLE DRIVEN™
- BORE SIZE METRIC:
- 51.00 MM
- PRODUCT NAME:
- THROTTLE BODY
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.66'
- TYPE:
- SINGLE BORE
$784.95Qty in Cart: 0Quantity:Price:$784.95Subtotal: -
CYCLE PRO LLC CV Tuner Kit - Twin Cam '99-'06 - 88" 20763
CYCLE PRO LLC
$77.85Fine-tuning your Twin Cam's fuel delivery unlocks hidden horsepower and improves throttle response across the entire RPM band. The CYCLE PRO LLC CV Tuner Kit eliminates guesswork by optimizing your carburettor's metering for real-world riding conditions...10500413- SKU:
- 10500413
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- BRASS
- MODEL:
- TWIN CAM 88
- UNITS:
- KIT
- PRODUCT NAME:
- TUNER KIT
- RIDING STYLE:
- STREET
- TYPE:
- EZ QUICK™
$77.85Qty in Cart: 0Quantity:Price:$77.85Subtotal: -
CYCLE PRO LLC CV Tuner Kit - 1200 XL '97-'03 20764
CYCLE PRO LLC
$49.40Fine-tuning your 1200 XL's fuel delivery is essential for unlocking consistent performance gains across the RPM band. This direct-fit tuner kit eliminates the guesswork of carb adjustments by optimizing jet sizing and air-fuel ratios without requiring...10500414- SKU:
- 10500414
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- MATERIAL:
- BRASS
- PRODUCT NAME:
- TUNER KIT
- TYPE:
- EZ QUICK™
- MODEL:
- SPORTSTER
$49.40Qty in Cart: 0Quantity:Price:$49.40Subtotal: -
CYCLE PRO LLC CV Tuner Kit - Evolution Big Twin '90-'99 20766
CYCLE PRO LLC
$49.40Evolution Big Twin engines respond dramatically to precise fuel mapping, and the stock jetting leaves performance on the table. The CYCLE PRO LLC CV Tuner Kit eliminates guesswork with optimized flow jets engineered specifically for '90-'99 models,...10500416- SKU:
- 10500416
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- BRASS
- UNITS:
- KIT
- PRODUCT NAME:
- TUNER KIT
- TYPE:
- EZ QUICK™
- MODEL:
- BIG TWIN
$49.40Qty in Cart: 0Quantity:Price:$49.40Subtotal: -
DAYTONA TWIN TEC LLC Fuel Injector Generation-6 Controller - Twin Cam 17700
DAYTONA TWIN TEC LLC
$1,285.95Precision fuel management separates consistent power delivery from erratic performance on the dyno and the track. The DAYTONA TWIN TEC LLC Fuel Injector Generation-6 Controller eliminates manifold pressure dependency with advanced Alpha-N fuel control,...10202383- SKU:
- 10202383
- Availability:
- Ships Same Business Day
- Weight:
- 3.80 LBS
- BASE COLOR:
- WHITE
- FEATURE:
- INCLUDES OXYGEN SENSOR
- OXYGEN SENSOR PLUG SIZE:
- 18,00 MM (0,71')
- PRODUCT NAME:
- FUEL INJECTION CONTROLLER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- WHITE
- OXYGEN SENSOR BAND:
- WIDE-BAND
- PROGRAMMING:
- AUTOTUNE
- PROGRAMMING:
- PRE-PROGRAMMED
- PROGRAMMING:
- PROGRAMMABLE
- BASE COLOR:
- BLACK
- OXYGEN SENSOR PLUG SIZE IMPERIAL:
- 0.71'
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- COLOR/FINISH:
- BLACK
- OXYGEN SENSOR PLUG SIZE METRIC:
- 18.00 MM
- UNITS:
- KIT
$1,285.95 -
THUNDERMAX ECM with Auto Tune - '11 FXST 309-361
THUNDERMAX
$1,088.95Stock ECMs limit your '11 FXST's potential—they can't adapt to aftermarket modifications or optimize for your specific riding conditions. The ThunderMax ECM with Auto-Tune replaces that factory limitation with a closed-loop tuning system that...10201848- SKU:
- 10201848
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- MODEL:
- THUNDERMAX
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- PROGRAMMING:
- DOWNLOADABLE MAPS
- UNITS:
- KIT
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- PROGRAMMING:
- AUTOTUNE
- TYPE:
- AIR/FUEL RATIO
- BASE COLOR:
- BLACK
- RIDING STYLE:
- STREET
- OXYGEN SENSOR BAND:
- WIDE-BAND
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
$1,088.95 -
THUNDERMAX ECM with Auto Tune - '02-'13 V-Rod 309-466
THUNDERMAX
$1,088.95Factory ECM tuning limits your V-Rod's potential—the ThunderMax ECM with Auto-Tune unlocks real performance gains by continuously adapting your air/fuel ratio to actual riding conditions rather than fixed parameters. Skip the dyno shop and tune your bike...10201853- SKU:
- 10201853
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- MODEL:
- THUNDERMAX
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- PROGRAMMING:
- DOWNLOADABLE MAPS
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- PROGRAMMING:
- AUTOTUNE
- TYPE:
- AIR/FUEL RATIO
- RIDING STYLE:
- STREET
- OXYGEN SENSOR BAND:
- WIDE-BAND
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
$1,088.95 -
THUNDERMAX ECM with Auto Tune - '14-'16 FLT 309-562
THUNDERMAX
$1,088.95Factory ECMs limit your bike's potential—they can't adapt to aftermarket modifications or optimize for your specific riding style. ThunderMax ECM with Auto-Tune replaces that constraint with a closed-loop tuning system that continuously adjusts your...10202118- SKU:
- 10202118
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- BASE COLOR:
- BLACK
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- PROGRAMMING:
- AUTOTUNE
- PROGRAMMING:
- DOWNLOADABLE MAPS
- MODEL:
- THUNDERMAX
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- OXYGEN SENSOR BAND:
- WIDE-BAND
- TYPE:
- AIR/FUEL RATIO
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$1,088.95Qty in Cart: 0Quantity:Price:$1,088.95Subtotal: -
THUNDERMAX Oxygen Sensor 309-355
THUNDERMAX
$129.95The THUNDERMAX Oxygen Sensor 309-355 pairs with an ECM tuning platform to optimize your fuel mixture and ignition timing without the expense and time commitment of traditional dyno tuning. By replacing your factory oxygen sensors with this system, you...10220039- SKU:
- 10220039
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- RIDING STYLE:
- STREET
- TYPE:
- WIDE-BAND O2
- OXYGEN SENSOR PLUG SIZE IMPERIAL:
- 0.71'
- PRODUCT NAME:
- SENSOR
- UNITS:
- EACH
$129.95 -
THUNDERMAX ECM with Auto Tune - Non-Throttle By Wire 309-460
THUNDERMAX
$1,088.95Factory ECM tuning is a compromise—it's built to satisfy EPA regulations and broad compatibility, not maximize your bike's performance. The ThunderMax ECM with Auto-Tune replaces that limitation with a closed-loop system that continuously adjusts your...10201851- SKU:
- 10201851
- Availability:
- Ships Same Business Day
- Weight:
- 2.61 LBS
- MODEL:
- THUNDERMAX
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- PROGRAMMING:
- DOWNLOADABLE MAPS
- RIDING STYLE:
- STREET
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- OXYGEN SENSOR BAND:
- WIDE-BAND
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- PROGRAMMING:
- AUTOTUNE
- BASE COLOR:
- BLACK
- TYPE:
- AIR/FUEL RATIO
- UNITS:
- KIT
$1,088.95 -
MAGNUM Fuel Tank Cross-over Line - FXSTD - 5 3/4" 38206
MAGNUM
$64.95Fuel system integrity is critical—a compromised crossover line can lead to inconsistent fuel delivery, performance issues, or worse. The MAGNUM Fuel Tank Cross-over Line eliminates guesswork with a complete, ready-to-install assembly engineered to...07060029- SKU:
- 07060029
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CLEAR
- INSIDE DIAMETER IMPERIAL:
- 5/16'
- LENGTH METRIC:
- 146 MM
- MODEL:
- STERLING CHROMITE II
- PRODUCT NAME:
- FUEL LINE
- STYLE:
- BRAIDED
- LENGTH IMPERIAL:
- 5-3/4'
- RIDING STYLE:
- STREET
- BASE COLOR:
- CLEAR
- INSIDE DIAMETER METRIC:
- 7.9 MM
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- TYPE:
- CROSSOVER
- UNITS:
- EACH
$64.95 -
MIKUNI HSR Series 48 Jet Kit KHS-048
MIKUNI
$124.99Fine-tuning your carburetor's fuel delivery is essential for extracting consistent power across the RPM range, and the MIKUNI HSR Series 48 Jet Kit does exactly that. Whether you're running a modified engine with increased displacement or optimizing for...10070322- SKU:
- 10070322
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BASE COLOR:
- BRASS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- COLOR/FINISH:
- BRASS
- MODEL:
- FOR HSR 48
- PRODUCT NAME:
- JET KIT
- MATERIAL:
- BRASS
$124.99Qty in Cart: 0Quantity:Price:$124.99Subtotal: -
MIKUNI HSR Series 45/48 Jet Needle J8-8CFY02-96
MIKUNI
$17.59Precise fuel delivery is the foundation of carburetor tuning, and the Mikuni HSR Series 45/48 Jet Needle J8-8CFY02-96 gives you factory-engineered control over your air-fuel mixture across the entire throttle range. Whether you're chasing peak horsepower...J88CFY0296- SKU:
- J88CFY0296
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- NEEDLE JET
- MODEL:
- RICHER
- UNITS:
- EACH
- JET SIZE METRIC:
- 2.96 MM
- RIDING STYLE:
- STREET
- TYPE:
- FOR HSR 45
- TYPE:
- FOR HSR 48
$17.59 -
MIKUNI HSR Series 42/45 Carburetor Rebuild Kit KHS-016
MIKUNI
$61.95Over time, carburetor seals and internal components degrade from fuel exposure, heat cycles, and regular use—causing lean conditions, hesitation, and poor throttle response. This genuine Mikuni rebuild kit supplies all OEM gaskets, O-rings, and internal...KHS016- SKU:
- KHS016
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- STREET
- MODEL:
- FOR HSR 42/45
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- CARBURETOR
- UNITS:
- KIT
$61.95 -
K & N Harley-Davidson Air Filter - Fuel Injection HD-1395
K & N
$106.99A quality air filter is fundamental to engine performance and longevity. K&N's reusable design delivers consistent airflow while protecting your engine from contaminants, and the pleated cotton-gauze media actually increases horsepower and torque...HD1395- SKU:
- HD1395
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- TAPERED
- RIDING STYLE:
- STREET
- FILTER HEIGHT IMPERIAL:
- 1.688'
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FLANGE POSITION:
- NONE
- MODEL:
- HIGH-FLOW
- UNITS:
- EACH
- BASE COLOR:
- RED
- INSIDE DIAMETER IMPERIAL:
- 5.62'
- PRODUCT NAME:
- AIR FILTER
- BASE COLOR:
- BLACK
$106.99 -
K & N Air Filter - XL HD-0200
K & N
$86.99A quality air filter is foundational to engine performance—restrictive OEM filters rob horsepower and limit airflow, while the K&N HD-0200 delivers measurable gains in both HP and torque through superior filtration design. Built with multi-layer woven...HD20- SKU:
- HD20
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- FILTER HEIGHT IMPERIAL:
- 2.063'
- RIDING STYLE:
- STREET
- FEATURES:
- WASHABLE
- FLANGE POSITION:
- NONE
- INSIDE DIAMETER IMPERIAL:
- 8.375' [L] X 4.25' [W]
- MODEL:
- HIGH-FLOW
- UNITS:
- EACH
- FILTER SHAPE:
- OVAL
- PRODUCT NAME:
- AIR FILTER
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
$86.99 -
K & N Air Filter - FLH/XLH HD-2075
K & N
$86.99Factory air filters restrict airflow and rob your engine of power—the K&N HD-2075 replaces that restriction with a high-flow pleated cotton media design that increases horsepower and torque while maintaining excellent filtration. Unlike disposable...HD2075- SKU:
- HD2075
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- FILTER HEIGHT IMPERIAL:
- 2.438'
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FILTER SHAPE:
- OVAL
- UNITS:
- EACH
- PRODUCT NAME:
- AIR FILTER
- FLANGE POSITION:
- NONE
- INSIDE DIAMETER IMPERIAL:
- 8.375' [L] X 4.25' [W]
- MODEL:
- HIGH-FLOW
- RIDING STYLE:
- STREET
- FEATURES:
- WASHABLE
$86.99 -
K & N Air Filter - '99-'01 Fuel Injection HD-8899
K & N
$119.99A restrictive stock air filter robs your bike of power and throttle response. The K&N HD-8899 replaces that limitation with a high-flow design that increases intake efficiency while maintaining reliable filtration—all with simple bolt-on installation...HD8899- SKU:
- HD8899
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- FEATURES:
- PRE-OILED
- FLANGE POSITION:
- NONE
- MODEL:
- HIGH-FLOW
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- FILTER HEIGHT IMPERIAL:
- 1.563'
- FILTER SHAPE:
- TAPERED
- PRODUCT NAME:
- AIR FILTER
- FEATURES:
- WASHABLE
- UNITS:
- EACH
- FEATURES:
- REUSABLE
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- RIDING STYLE:
- STREET
$119.99 -
K & N Air Filter - Big Twin E-2470
K & N
$86.99The K&N E-2470 Big Twin air filter replaces restrictive OEM filtration with a high-flow design that increases horsepower and torque while maintaining superior filtration. Its pleated cotton gauze media delivers exceptional airflow without compromising...E2470- SKU:
- E2470
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FLANGE POSITION:
- NONE
- FEATURES:
- WASHABLE
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- FILTER SHAPE:
- ROUND
- MODEL:
- HIGH-FLOW
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FILTER HEIGHT IMPERIAL:
- 1.875'
- INSIDE DIAMETER IMPERIAL:
- 4.688'
$86.99 -
K & N Air Filter - Flux/Torch E-3333
K & N
$106.99A quality air filter is fundamental to engine performance—it directly impacts airflow, fuel efficiency, and throttle response. The K&N E-3333 delivers superior filtration without the restrictive pressure drop of disposable paper filters, allowing your...E3333- SKU:
- E3333
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- FLANGE POSITION:
- NONE
- PRODUCT NAME:
- AIR FILTER
- FILTER HEIGHT IMPERIAL:
- 2.188'
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- MODEL:
- RK SERIES
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 9.688' [L] X 6.25' [W]
$106.99
