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 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 restores atomization and spray pattern consistency, ensuring...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 OEM specifications or upgrade your existing system for...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 Injector 9948 is engineered for exact spray patterns and...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 Oil Pump Corp. Fuel Injector for Twin Cam models...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 Sensor 9950 restores accurate throttle input...10220121- SKU:
- 10220121
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- TYPE:
- THROTTLE POSITION
- PRODUCT NAME:
- SENSOR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$54.95 -
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 performance while delivering the consistency your engine...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 Corp. Throttle Position Sensor 9952 is a direct OEM...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 plague stock injectors. Whether you're running a naturally...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 Sensor 9954 is an OEM-quality replacement that restores...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 pattern, critical for maintaining optimal air-fuel ratios...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. Fuel Injector 9943 restores OEM-specification atomization...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
$99.95Qty in Cart: 0Quantity:Price:$99.95Subtotal: -
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 precise manifold absolute pressure readings, ensuring your...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 combines flow-bench validation with precision CNC...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 CNC-ported internals with flow bench validation to unlock...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 constraint with a precision-engineered unit designed to...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 both the throttle body and manifold in one bolt-on...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
$884.95Qty in Cart: 0Quantity:Price:$884.95Subtotal: -
FEULING OIL PUMP CORP. EV-6 Series Fuel Injector Adapter 9931
FEULING OIL PUMP CORP.
$22.95If you're upgrading to modern EV6 fuel injectors but running a legacy EV1 harness, this adapter bridges that gap without rewiring your entire fuel system. The Feuling EV-6 Series adapter ensures proper electrical connectivity and maintains clean injector...10220225- SKU:
- 10220225
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FUEL INJECTOR ADAPTER
$22.95 -
FEULING OIL PUMP CORP. EV-6 Series Fuel Injector - M8 - 5.3 9934
FEULING OIL PUMP CORP.
$149.95OEM replacements and upgrades available as listed10220229- SKU:
- 10220229
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- FUEL INJECTOR
- FLOW RATE IMPERIAL:
- 42.06 LB/H
- PRODUCT NAME:
- FUEL INJECTOR RACE ONLY
$149.95 -
DAYTONA TWIN TEC LLC Injector - 6.2 Grams 20062
DAYTONA TWIN TEC LLC
$327.95Precision fuel delivery is the foundation of consistent, repeatable performance—and the DAYTONA TWIN TEC LLC Injector delivers exactly that. With a 6.2-gram flow rate and modern injector technology, this part ensures optimal atomization and combustion...10220138- SKU:
- 10220138
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- FLOW RATE IMPERIAL:
- 49.21 LB/H
- RIDING STYLE:
- STREET
- UNITS:
- SET
- SPRAY ANGLE:
- 25°
- PRODUCT NAME:
- FUEL INJECTOR
$327.95Qty in Cart: 0Quantity:Price:$327.95Subtotal: -
DAYTONA TWIN TEC LLC Injector - 7.1 Grams 20071
DAYTONA TWIN TEC LLC
$335.95Precision fuel delivery is the foundation of engine performance, and the DAYTONA TWIN TEC LLC Injector (20071) delivers exactly that with consistent 7.1-gram pulse characteristics built on proven injector technology. Whether you're tuning a naturally...10220139- SKU:
- 10220139
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- FLOW RATE IMPERIAL:
- 56.35 LB/H
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FUEL INJECTOR
- SPRAY ANGLE:
- 25°
- UNITS:
- SET
$335.95Qty in Cart: 0Quantity:Price:$335.95Subtotal:
