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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FEULING OIL PUMP CORP. Fuel Injector 9941
FEULING OIL PUMP CORP.
$99.95Fuel injector performance directly impacts engine efficiency, throttle response, and overall drivability—making a quality replacement critical for maintaining peak combustion characteristics. The...10220113- SKU:
- 10220113
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- FLOW RATE IMPERIAL:
- 34.13 LB/H
- UNITS:
- EACH
- PRODUCT NAME:
- FUEL INJECTOR
$99.95 -
FEULING OIL PUMP CORP. Fuel Injector 9944
FEULING OIL PUMP CORP.
$119.95Precision fuel delivery is non-negotiable in high-performance applications, and worn or compromised injectors rob your engine of efficiency and throttle response. The Feuling 9944 fuel injector...10220116- SKU:
- 10220116
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PRODUCT NAME:
- FUEL INJECTOR
- PRODUCT NAME:
- FUEL INJECTOR RACE ONLY
- UNITS:
- EACH
- FLOW RATE IMPERIAL:
- 49.21 LB/H
- RIDING STYLE:
- STREET
$119.95 -
FEULING OIL PUMP CORP. Fuel Injector 9946
FEULING OIL PUMP CORP.
$99.95Fuel injector performance directly impacts engine efficiency, throttle response, and overall power delivery. The Feuling Oil Pump Corp. Fuel Injector 9946 delivers precise fuel atomization to match...10220118- SKU:
- 10220118
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- FLOW RATE IMPERIAL:
- 30.16 LB/H
- PRODUCT NAME:
- FUEL INJECTOR
- UNITS:
- EACH
$99.95 -
FEULING OIL PUMP CORP. Fuel Injector 9948
FEULING OIL PUMP CORP.
$129.95Precision fuel delivery is foundational to engine performance, and a compromised fuel injector will rob your motor of responsiveness, efficiency, and reliability. The Feuling Oil Pump Corp. Fuel...10220119- SKU:
- 10220119
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- FLOW RATE IMPERIAL:
- 40.48 LB/H
- UNITS:
- EACH
- PRODUCT NAME:
- FUEL INJECTOR
$129.95 -
FEULING OIL PUMP CORP. Fuel Injector - Twin Cam '06-'17 9949
FEULING OIL PUMP CORP.
$97.95Precision fuel delivery is the foundation of reliable engine performance, and a worn or failing fuel injector directly impacts combustion efficiency, throttle response, and fuel economy. The Feuling...10220120- SKU:
- 10220120
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- FUEL INJECTOR RACE ONLY
- UNITS:
- EACH
- FLOW RATE IMPERIAL:
- 42.06 LB/H
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FUEL INJECTOR
$97.95 -
FEULING OIL PUMP CORP. Throttle Position Sensor 9950
FEULING OIL PUMP CORP.
$54.95A faulty throttle position sensor compromises engine responsiveness and fuel mapping precision, leading to rough idle, hesitation, and poor fuel economy. The Feuling Oil Pump Corp. Throttle Position...10220121- SKU:
- 10220121
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- TYPE:
- THROTTLE POSITION
- PRODUCT NAME:
- SENSOR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
FEULING OIL PUMP CORP. Air Controller Idle 9951
FEULING OIL PUMP CORP.
$59.95Precise idle control is fundamental to engine reliability and drivability, and worn OEM air controllers compromise both. The Feuling Oil Pump Corp. Air Controller Idle 9951 restores factory-spec...10220122- SKU:
- 10220122
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- TYPE:
- IDLE AIR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CONTROL MODULE
$59.95 -
FEULING OIL PUMP CORP. Throttle Position Sensor 9952
FEULING OIL PUMP CORP.
$69.95A faulty throttle position sensor (TPS) compromises engine responsiveness, fuel economy, and drivability—making accurate sensor calibration critical for consistent performance. The Feuling Oil Pump...10220123- SKU:
- 10220123
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- SENSOR
- RIDING STYLE:
- STREET
- TYPE:
- THROTTLE POSITION
$69.95 -
FEULING OIL PUMP CORP. High Flow Fuel Injector 9947
FEULING OIL PUMP CORP.
$119.95Feuling Oil Pump Corp. engineered this high-flow fuel injector to deliver consistent atomization and precise fuel metering across your entire RPM range, eliminating lean spots and hesitation that...10220161- SKU:
- 10220161
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- FLOW RATE IMPERIAL:
- 60.32 LB/H
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- FUEL INJECTOR
$119.95 -
FEULING OIL PUMP CORP. Map Sensor 9954
FEULING OIL PUMP CORP.
$89.95A faulty MAP sensor can cause rough idling, poor fuel economy, and unpredictable performance tuning—issues that cascade through your entire fuel management system. The Feuling Oil Pump Corp. Map...10220162- SKU:
- 10220162
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- TYPE:
- MAP
- PRODUCT NAME:
- SENSOR
- UNITS:
- EACH
$89.95 -
FEULING OIL PUMP CORP. Fuel Injector 9940
FEULING OIL PUMP CORP.
$99.95Fuel delivery precision directly impacts engine performance, throttle response, and overall reliability. The Feuling Oil Pump Corp. Fuel Injector 9940 ensures consistent atomization and spray...10220112- SKU:
- 10220112
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- FLOW RATE IMPERIAL:
- 30.95 LB/H
- PRODUCT NAME:
- FUEL INJECTOR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$99.95 -
FEULING OIL PUMP CORP. Fuel Injector 9943
FEULING OIL PUMP CORP.
$99.95Precise fuel delivery is foundational to engine performance, and a compromised fuel injector directly impacts combustion efficiency, throttle response, and fuel economy. The Feuling Oil Pump Corp...10220115- SKU:
- 10220115
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- FLOW RATE IMPERIAL:
- 47.57 LB/H
- PRODUCT NAME:
- FUEL INJECTOR RACE ONLY
- UNITS:
- EACH
$99.95 -
FEULING OIL PUMP CORP. Map Sensor 9953
FEULING OIL PUMP CORP.
$69.95A faulty map sensor throws off your engine's fuel and ignition timing, draining performance and fuel economy. The Feuling Oil Pump Corp. Map Sensor 9953 is a direct OEM replacement that restores...10220124- SKU:
- 10220124
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- SENSOR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- MAP
$69.95 -
HORSEPOWER, INC Throttle Body - Black - 51mm/1.66 HPI-51D6-16B
HORSEPOWER, INC
$784.95A properly sized throttle body is fundamental to unlocking your engine's full potential—restrictive factory units rob you of both responsiveness and peak power output. This 51mm HORSEPOWER, INC unit...10220244- SKU:
- 10220244
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- BORE SIZE METRIC:
- 51.00 MM
- PRODUCT NAME:
- THROTTLE BODY
- COLOR/FINISH:
- BLACK
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.66'
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MODEL:
- CABLE DRIVEN™
- RIDING STYLE:
- STREET
- TYPE:
- SINGLE BORE
$784.95Qty in Cart: 0Quantity:Price:$784.95Subtotal: -
HORSEPOWER, INC Throttle Body - Black - 55mm/1.66 HPI-55D6-16B
HORSEPOWER, INC
$784.95A properly flowing throttle body is the foundation of any induction system upgrade—restrictive factory designs leave horsepower on the table. This 55mm HORSEPOWER, INC throttle body combines...10220245- SKU:
- 10220245
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- PRODUCT NAME:
- THROTTLE BODY
- MATERIAL:
- ALUMINUM
- MODEL:
- CABLE DRIVEN™
- RIDING STYLE:
- STREET
- TYPE:
- SINGLE BORE
- BORE SIZE METRIC:
- 55.00 MM
- COLOR/FINISH:
- BLACK
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.66'
- UNITS:
- EACH
$784.95Qty in Cart: 0Quantity:Price:$784.95Subtotal: -
HORSEPOWER, INC Throttle Body - Black - 58/1.76 HPI-58D1-76B
HORSEPOWER, INC
$884.95If you're running a larger cubic inch motor, your OEM throttle body is likely your bottleneck—restricting airflow and leaving power on the table. The HORSEPOWER, INC 58mm throttle body replaces that...10220246- SKU:
- 10220246
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- MAX FLOW I™
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- BORE SIZE METRIC:
- 58.00 MM
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.76'
- TYPE:
- SINGLE BORE
- UNITS:
- EACH
$884.95 -
HORSEPOWER, INC Throttle Body - Black - 58/1.80 HPI-58D1-18B
HORSEPOWER, INC
$884.95If you're running a larger-displacement engine that demands serious airflow, a restrictive OEM throttle body will cost you power and throttle response. The HORSEPOWER, INC 58mm throttle body replaces...10220247- SKU:
- 10220247
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- MAX FLOW I™
- PRODUCT NAME:
- THROTTLE BODY
- BASE COLOR:
- BLACK
- BORE SIZE METRIC:
- 58.00 MM
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- SINGLE BORE
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.80'
- UNITS:
- EACH
$884.95 -
DRAG SPECIALTIES Air Control Motor Idle MC-DRAG063
DRAG SPECIALTIES
$78.06If your idle is hunting or unstable, a faulty air control motor can be the culprit—and it's one of the most common causes of rough idling on stock Harley engines. The DRAG Specialties Air Control...10220084- SKU:
- 10220084
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- PRODUCT NAME:
- CONTROL MODULE
- RIDING STYLE:
- STREET
- TYPE:
- IDLE AIR
- UNITS:
- EACH
$78.06 -
DRAG SPECIALTIES Throttle Position Sensor MC-DRAG078
DRAG SPECIALTIES
$45.96A faulty throttle position sensor compromises throttle response and fuel mapping, degrading both drivability and performance. The DRAG SPECIALTIES MC-DRAG078 is a direct OEM replacement that restores...10220021- SKU:
- 10220021
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- THROTTLE POSITION
- PRODUCT NAME:
- SENSOR
$45.96Qty in Cart: 0Quantity:Price:$45.96Subtotal: -
DRAG SPECIALTIES Air Controller Idle MC-DRAG080
DRAG SPECIALTIES
$67.36If your idle is hunting, surging, or unstable, an air controller malfunction is often the culprit—and this OEM replacement restores precise idle quality and fuel efficiency without aftermarket...10220022- SKU:
- 10220022
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- CONTROL MODULE
- TYPE:
- IDLE AIR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$67.36
