Harley Fuel Injection Parts
Harley-Davidson Fuel Injection Parts at JJ Motorsports
Enhance your Harley's EFI system with premium fuel injection parts from JJ Motorsports, featuring throttle bodies, oxygen sensors, high-flow injectors, and MAP sensors for precise fuel delivery and optimized performance on Milwaukee-Eight, Twin Cam, and Touring models. These high-quality components ensure smoother throttle response, better atomization, and dyno-level gains.
Shop Horsepower Inc, ThunderMax, and Feuling Oil Pump Corp fuel injection parts for race-proven reliability. Explore related categories such as Harley air and fuel for air cleaners and jets, or Harley for exhaust and cams to complete your EFI upgrades and unleash V-Twin potential.
Top Harley-Davidson Fuel Injection Parts
- Horsepower Inc Throttle Body Black 51mm 1.71 HPI-51D1-17B – 51mm black throttle body for M8 engines; direct-fit with improved flow for throttle-by-wire setups.
- ThunderMax Oxygen Sensor 309-355 – Wideband O2 sensor for ThunderMax EFI; precise air/fuel monitoring for self-tuning systems.
- Feuling Oil Pump Corp EV 6 Series Fuel Injector M8 6-1 9935 – EV6 injector for Milwaukee-Eight; high-flow for increased fuel delivery on modified Harleys.
- Feuling Oil Pump Corp MAP Sensor 9953 – Manifold absolute pressure sensor; accurate boost/vacuum readings for EFI tuning.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
S&S CYCLE Air Control Motor Idle 55-5085
S&S CYCLE
MSRP: $163.95Now: $147.56Was: $163.95Precise idle control is critical for engine reliability and drivability, especially when running modified fuel systems or forced induction setups. The S&S Cycle Air Control Motor ensures consistent...10220209- SKU:
- 10220209
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- TYPE:
- IDLE AIR CONTROL
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- MOTOR KIT
MSRP: $163.95Now: $147.56Was: $163.95 -
On Sale
S&S CYCLE Air Intake Sensor 55-5041
S&S CYCLE
MSRP: $109.95Now: $98.96Was: $109.95Precise air intake measurement is critical to maintaining optimal fuel mapping and engine performance, especially when running modified throttle bodies or performance fuel injection systems. The S&S...10220211- SKU:
- 10220211
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- AIR TEMPERATURE
- PRODUCT NAME:
- SENSOR
MSRP: $109.95Now: $98.96Was: $109.95 -
On Sale
S&S CYCLE Throttle Body - 58mm 117" 170-0340
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95A properly flowing throttle body is fundamental to unlocking your engine's potential, and the S&S CYCLE 58mm throttle body delivers the precision airflow your 117" big-twin demands. This sealed,...10220185- SKU:
- 10220185
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- BORE SIZE METRIC:
- 58.00 MM
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- MANIFOLD SIZE:
- 408
MSRP: $995.95Now: $896.36Was: $995.95 -
On Sale
S&S CYCLE Throttle Body - 66mm 170-0341
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95A larger throttle body is one of the most direct ways to unlock additional airflow and responsiveness in your fuel-injected Harley engine. The S&S 66mm design bolts directly onto your existing...10220186- SKU:
- 10220186
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- UNITS:
- KIT
- BORE SIZE METRIC:
- 66.00 MM
- MANIFOLD SIZE:
- 417
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
MSRP: $995.95Now: $896.36Was: $995.95 -
On Sale
S&S CYCLE Throttle Body - 66mm 124" 170-0348
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95A properly sized throttle body is critical for maximizing airflow and delivering consistent throttle response on high-displacement engines. The S&S 66mm unit eliminates restrictions in your intake...10220193- SKU:
- 10220193
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 66.00 MM
- MANIFOLD SIZE:
- 417
- PRODUCT NAME:
- THROTTLE BODY
- UNITS:
- KIT
MSRP: $995.95Now: $896.36Was: $995.95Qty in Cart: 0Quantity:Price:MSRP: $995.95Now: $896.36Was: $995.95Subtotal: -
On Sale
S&S CYCLE Throttle Body - 58mm 124" 170-0338
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95If you're running a 124" engine and want genuine air-flow improvements without compromising reliability, the S&S CYCLE 58mm Throttle Body delivers the precision intake you need. This one-piece design...10220183- SKU:
- 10220183
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- BORE SIZE METRIC:
- 58.00 MM
- MANIFOLD SIZE:
- 417
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
- UNITS:
- KIT
MSRP: $995.95Now: $896.36Was: $995.95Qty in Cart: 0Quantity:Price:MSRP: $995.95Now: $896.36Was: $995.95Subtotal: -
On Sale
S&S CYCLE Throttle Body - 58mm 111" 170-0339
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95A properly sized throttle body is fundamental to unlocking your engine's breathing potential—the S&S 58mm unit delivers increased airflow without sacrificing the stock appearance or sensor...10220184- SKU:
- 10220184
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- BORE SIZE METRIC:
- 58.00 MM
- MANIFOLD SIZE:
- 398
- UNITS:
- KIT
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
MSRP: $995.95Now: $896.36Was: $995.95Qty in Cart: 0Quantity:Price:MSRP: $995.95Now: $896.36Was: $995.95Subtotal: -
On Sale
S&S CYCLE O2 Sensor - '95-'99 EFI 106-2067
S&S CYCLE
MSRP: $399.95Now: $359.96Was: $399.95A properly functioning O2 sensor is critical for maintaining accurate fuel mixture and engine efficiency on carbureted-to-EFI conversion builds. The S&S Cycle O2 Sensor ensures your Magneti Marelli...10220108- SKU:
- 10220108
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- TYPE:
- NARROW-BAND O2
- OXYGEN SENSOR PLUG SIZE IMPERIAL:
- 0.71'
- PRODUCT NAME:
- SENSOR
- UNITS:
- KIT
- RIDING STYLE:
- STREET
MSRP: $399.95Now: $359.96Was: $399.95 -
On Sale
S&S CYCLE Throttle Body - 58mm 170-0337
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95If you're running an S&S head on your big-inch engine, intake flow becomes your limiting factor—and the stock throttle body is holding back your performance. The S&S Cycle 58mm Throttle Body delivers...10220182- SKU:
- 10220182
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- BORE SIZE METRIC:
- 58.00 MM
- MANIFOLD SIZE:
- 410
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- THROTTLE BODY
- UNITS:
- KIT
MSRP: $995.95Now: $896.36Was: $995.95 -
On Sale
S&S CYCLE Throttle Body - 66mm 124" 170-0342
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95A properly sized throttle body is critical for maximizing airflow and engine responsiveness in high-displacement engines. The S&S 66mm unit delivers significantly improved volumetric efficiency...10220187- SKU:
- 10220187
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- BORE SIZE METRIC:
- 66.00 MM
- MANIFOLD SIZE:
- 410
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
- UNITS:
- KIT
MSRP: $995.95Now: $896.36Was: $995.95 -
On Sale
S&S CYCLE Throttle Body - 58mm 124" 170-0345
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95A properly sized throttle body is critical for maximizing airflow and throttle response on any high-displacement engine. The S&S 58mm design delivers a direct bolt-on solution that maintains stock...10220190- SKU:
- 10220190
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- PRODUCT NAME:
- THROTTLE BODY
- BORE SIZE METRIC:
- 58.00 MM
- MANIFOLD SIZE:
- 417
- RIDING STYLE:
- STREET
- UNITS:
- KIT
MSRP: $995.95Now: $896.36Was: $995.95Qty in Cart: 0Quantity:Price:MSRP: $995.95Now: $896.36Was: $995.95Subtotal: -
On Sale
S&S CYCLE Throttle Body - 58mm 170-0346
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95If you're running a high-performance engine and want measurable gains in throttle response and airflow, the S&S Cycle 58mm Throttle Body is a direct bolt-on upgrade that delivers. The sealed...10220191- SKU:
- 10220191
- Availability:
- Ships Same Business Day
- Weight:
- 3.35 LBS
- UNITS:
- KIT
- BORE SIZE METRIC:
- 58.00 MM
- MANIFOLD SIZE:
- 405
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
MSRP: $995.95Now: $896.36Was: $995.95 -
On Sale
S&S CYCLE Throttle Body - 58mm 111" 170-0347
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95If you're running an 111" engine and want measurable intake flow improvements without fabrication headaches, the S&S Cycle 58mm throttle body is the direct bolt-on solution. This one-piece design...10220192- SKU:
- 10220192
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- MANIFOLD SIZE:
- 398
- UNITS:
- KIT
- BORE SIZE METRIC:
- 58.00 MM
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
MSRP: $995.95Now: $896.36Was: $995.95 -
On Sale
S&S CYCLE Throttle Body - 66mm 170-0349
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95A larger throttle body is one of the most straightforward ways to unlock additional airflow in your intake system, translating directly to improved throttle response and performance gains. The S&S...10220194- SKU:
- 10220194
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- MANIFOLD SIZE:
- 405
- BORE SIZE METRIC:
- 66.00 MM
- PRODUCT NAME:
- THROTTLE BODY
MSRP: $995.95Now: $896.36Was: $995.95 -
STANDARD MOTOR PRODUCTS Fuel Injector MC-INJ3
STANDARD MOTOR PRODUCTS
$84.95A fuel injector's primary job is delivering precise fuel atomization into your combustion chamber—when it fails or degrades, you'll notice rough idle, poor fuel economy, and potential misfires that...10220077- SKU:
- 10220077
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- FUEL INJECTOR
- UNITS:
- EACH
- FLOW RATE IMPERIAL:
- 31.75 LB/H
- RIDING STYLE:
- STREET
$84.95Qty in Cart: 0Quantity:Price:$84.95Subtotal: -
CYCLE PRO LLC Throttle Sensor 18481
CYCLE PRO LLC
$51.55Achieve maximum fuel efficiency and power from the engine, Direct replacement and upgraded from the OEM design10220253- SKU:
- 10220253
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SENSOR
- RIDING STYLE:
- STREET
- TYPE:
- THROTTLE
- UNITS:
- EACH
$51.55 -
CYCLE PRO LLC Throttle Sensor 18484
CYCLE PRO LLC
$63.85Achieve maximum fuel efficiency and power from the engine, Direct replacement and upgraded from the OEM design10220255- SKU:
- 10220255
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SENSOR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- THROTTLE
$63.85 -
FEULING OIL PUMP CORP. Fuel Injector 9942
FEULING OIL PUMP CORP.
$99.95Precise fuel delivery is the foundation of consistent engine performance, and a worn or failing fuel injector will compromise throttle response, fuel economy, and combustion efficiency across your...10220114- SKU:
- 10220114
- Availability:
- Ships Same Business Day
- Weight:
- 1.69 LBS
- PRODUCT NAME:
- FUEL INJECTOR
- PRODUCT NAME:
- FUEL INJECTOR RACE ONLY
- FLOW RATE IMPERIAL:
- 38.89 LB/H
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$99.95 -
DRAG SPECIALTIES Crank Position Sensor - '00 Softail 63704
DRAG SPECIALTIES
$87.69A faulty crank position sensor can cause rough idle, stalling, and unreliable ignition timing—issues that'll sideline your Softail faster than you'd expect. This OEM-quality replacement from Drag...10220201- SKU:
- 10220201
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- TYPE:
- CRANK POSITION
- UNITS:
- EACH
- PRODUCT NAME:
- SENSOR
- RIDING STYLE:
- STREET
$87.69Qty in Cart: 0Quantity:Price:$87.69Subtotal: -
DRAG SPECIALTIES Crank Position Sensor - '04-'05 XL 63699
DRAG SPECIALTIES
$87.69A failing crank position sensor can cause rough idle, misfires, and unreliable engine starts—issues that'll sideline your bike faster than a blown gasket. The DRAG SPECIALTIES replacement sensor...10220199- SKU:
- 10220199
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- TYPE:
- CRANK POSITION
- UNITS:
- EACH
- PRODUCT NAME:
- SENSOR
- RIDING STYLE:
- STREET
$87.69Qty in Cart: 0Quantity:Price:$87.69Subtotal:
