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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DAYTONA TWIN TEC LLC Injector - 7.8 Grams 20078
DAYTONA TWIN TEC LLC
$351.95Precision fuel delivery is the foundation of reliable engine performance, especially when you're pushing your build to its limits. The DAYTONA TWIN TEC LLC 7.8-gram injector delivers consistent atomization and flow characteristics critical for tuning...10220140- SKU:
- 10220140
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- UNITS:
- SET
- RIDING STYLE:
- STREET
- FLOW RATE IMPERIAL:
- 61.91 LB/H
- PRODUCT NAME:
- FUEL INJECTOR
- SPRAY ANGLE:
- 25°
$351.95 -
DAYTONA TWIN TEC LLC Injector - 8.5 Grams 20085
DAYTONA TWIN TEC LLC
$361.95Precision fuel delivery is the foundation of consistent engine performance, and the DAYTONA TWIN TEC LLC 8.5-gram injector delivers that reliability with flow characteristics engineered for modern forced-induction and naturally aspirated applications...10220141- SKU:
- 10220141
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- UNITS:
- SET
- PRODUCT NAME:
- FUEL INJECTOR
- SPRAY ANGLE:
- 25°
- FLOW RATE IMPERIAL:
- 67.46 LB/H
- RIDING STYLE:
- STREET
$361.95 -
DAYTONA TWIN TEC LLC Injector - 9.2 Grams 20092
DAYTONA TWIN TEC LLC
$381.95Precision fuel delivery is the foundation of consistent performance, and the DAYTONA TWIN TEC LLC Injector ensures accurate atomization across your entire RPM range. Whether you're tuning a carbureted engine or optimizing a fuel-injected platform, this 9...10220142- SKU:
- 10220142
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- FLOW RATE IMPERIAL:
- 73.02 LB/H
- RIDING STYLE:
- STREET
- UNITS:
- SET
- SPRAY ANGLE:
- 25°
- PRODUCT NAME:
- FUEL INJECTOR
$381.95Qty in Cart: 0Quantity:Price:$381.95Subtotal: -
DAYTONA TWIN TEC LLC Injector - 5.4 Grams 21054
DAYTONA TWIN TEC LLC
$317.95Precision fuel delivery is the foundation of engine performance, and the DAYTONA TWIN TEC LLC Injector delivers exactly that. This 5.4-gram injector offers the atomization and flow characteristics required for consistent combustion across your entire RPM...10220145- SKU:
- 10220145
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- FLOW RATE IMPERIAL:
- 42.86 LB/H
- RIDING STYLE:
- STREET
- SPRAY ANGLE:
- 18°
- UNITS:
- SET
- PRODUCT NAME:
- FUEL INJECTOR
$317.95 -
DAYTONA TWIN TEC LLC Injector - 6.2 Grams 21062
DAYTONA TWIN TEC LLC
$327.95Precision fuel delivery is non-negotiable in high-performance racing, and the DAYTONA TWIN TEC LLC 6.2-gram injector delivers the metering accuracy your engine demands. Whether you're tuning a naturally aspirated build or running forced induction, this...10220146- SKU:
- 10220146
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- FLOW RATE IMPERIAL:
- 49.21 LB/H
- RIDING STYLE:
- STREET
- SPRAY ANGLE:
- 18°
- UNITS:
- SET
- PRODUCT NAME:
- FUEL INJECTOR
$327.95 -
DAYTONA TWIN TEC LLC Injector - 7.1 Grams 21071
DAYTONA TWIN TEC LLC
$331.95Precision fuel delivery is foundational to consistent engine performance, and the DAYTONA TWIN TEC LLC 7.1-gram injector delivers the metering accuracy your fuel system demands. Whether you're tuning a street build or dialing in race-day parameters, this...10220147- SKU:
- 10220147
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- UNITS:
- SET
- FLOW RATE IMPERIAL:
- 56.35 LB/H
- SPRAY ANGLE:
- 18°
- PRODUCT NAME:
- FUEL INJECTOR
$331.95 -
DAYTONA TWIN TEC LLC Injector - 7.8 Grams 21078
DAYTONA TWIN TEC LLC
$357.95Precision fuel delivery is foundational to consistent engine performance, and the DAYTONA TWIN TEC LLC Injector delivers measurable accuracy across the RPM band. Whether you're tuning a carbureted engine conversion or fine-tuning an existing fuel...10220148- SKU:
- 10220148
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- FLOW RATE IMPERIAL:
- 61.91 LB/H
- PRODUCT NAME:
- FUEL INJECTOR
- SPRAY ANGLE:
- 18°
- UNITS:
- SET
- RIDING STYLE:
- STREET
$357.95Qty in Cart: 0Quantity:Price:$357.95Subtotal: -
DAYTONA TWIN TEC LLC Injector - 8.5 Grams 21085
DAYTONA TWIN TEC LLC
$361.95Precise fuel delivery is the foundation of consistent performance, and the DAYTONA TWIN TEC LLC Injector puts that control directly in your hands. This 8.5-gram unit is engineered for racers and serious tuners who demand reliability across varying boost...10220149- SKU:
- 10220149
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- FLOW RATE IMPERIAL:
- 67.46 LB/H
- RIDING STYLE:
- STREET
- UNITS:
- SET
- PRODUCT NAME:
- FUEL INJECTOR
- SPRAY ANGLE:
- 18°
$361.95 -
DAYTONA TWIN TEC LLC Injector - 9.2 Grams 21092
DAYTONA TWIN TEC LLC
$371.95Precision fuel delivery is non-negotiable in high-performance racing applications, and the DAYTONA TWIN TEC LLC 9.2-gram injector delivers consistent atomization and flow rates critical for tuning reliability across varying boost conditions. Whether...10220150- SKU:
- 10220150
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- STREET
- SPRAY ANGLE:
- 18°
- UNITS:
- SET
- FLOW RATE IMPERIAL:
- 73.02 LB/H
- PRODUCT NAME:
- FUEL INJECTOR
$371.95 -
DAYTONA TWIN TEC LLC Injector - 10.6 Grams 21106
DAYTONA TWIN TEC LLC
$461.95Precision fuel delivery is non-negotiable in high-performance racing applications, and the DAYTONA TWIN TEC LLC Injector (21106) delivers the exact atomization and flow consistency your engine demands. At 10.6 grams, this injector is engineered to...10220152- SKU:
- 10220152
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- FLOW RATE IMPERIAL:
- 84.13 LB/H
- RIDING STYLE:
- STREET
- SPRAY ANGLE:
- 18°
- UNITS:
- SET
- PRODUCT NAME:
- FUEL INJECTOR
$461.95 -
DAYTONA TWIN TEC LLC Injector - 3.9 Grams 20039
DAYTONA TWIN TEC LLC
$292.95Precision fuel delivery is non-negotiable when you're chasing consistent performance across varied engine loads and RPM ranges. The DAYTONA TWIN TEC LLC 3.9-gram injector delivers metered fuel atomization that keeps combustion reliable, whether you're...10220136- SKU:
- 10220136
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- UNITS:
- SET
- FLOW RATE IMPERIAL:
- 30.95 LB/H
- PRODUCT NAME:
- FUEL INJECTOR
- SPRAY ANGLE:
- 25°
- RIDING STYLE:
- STREET
$292.95 -
DAYTONA TWIN TEC LLC Injector - 5.4 Grams 20054
DAYTONA TWIN TEC LLC
$317.95Precision fuel atomization is critical for consistent combustion and peak engine performance, especially in high-demand racing applications. The DAYTONA TWIN TEC LLC Injector delivers metered fuel flow with tight tolerances, ensuring repeatability across...10220137- SKU:
- 10220137
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- RIDING STYLE:
- STREET
- UNITS:
- SET
- FLOW RATE IMPERIAL:
- 42.86 LB/H
- PRODUCT NAME:
- FUEL INJECTOR
- SPRAY ANGLE:
- 25°
$317.95 -
DRAG SPECIALTIES Crank Position Sensor - V-Rod Screaming Eagle 63700
DRAG SPECIALTIES
$81.27A failing crank position sensor doesn't just trigger a check engine light—it compromises ignition timing, fuel delivery, and throttle response, leaving your V-Rod Screaming Eagle running rough or refusing to start altogether. The DRAG SPECIALTIES...10220200- SKU:
- 10220200
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- SENSOR
- TYPE:
- CRANK POSITION
$81.27 -
EASTERN MOTORCYCLE PARTS Fuel Injector V-13-225
EASTERN MOTORCYCLE PARTS
$114.95A fuel injector is critical to your engine's efficiency and performance—it directly controls fuel atomization and combustion timing. If you're experiencing rough idle, hesitation, or poor fuel economy, a worn or failing injector is often the culprit. The...10220181- SKU:
- 10220181
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- FUEL INJECTOR
$114.95 -
FEULING OIL PUMP CORP. EV-1 Series Fuel Injector Adapter 9930
FEULING OIL PUMP CORP.
$19.95The Feuling Oil Pump Corp. EV-1 Series Fuel Injector Adapter 9930 ensures precise fuel delivery and reliable engine performance by providing OEM-specification compatibility with your fuel injection system. If you're running Feuling EV-1 Series...10220180- SKU:
- 10220180
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FUEL INJECTOR ADAPTER
- UNITS:
- EACH
$19.95 -
DRAG SPECIALTIES Crank Position Sensor 63903
DRAG SPECIALTIES
$81.27A faulty crank position sensor can cripple engine timing and fuel delivery, leaving your vehicle running rough or refusing to start altogether. The DRAG SPECIALTIES Crank Position Sensor 63903 is a direct replacement that restores accurate crankshaft...10220261- SKU:
- 10220261
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- TYPE:
- CRANK POSITION
- UNITS:
- EACH
- PRODUCT NAME:
- SENSOR
- RIDING STYLE:
- STREET
$81.27 -
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 idle speeds across varying engine conditions without...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 Cycle Air Intake Sensor (55-5041) delivers the accuracy...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, stainless steel design eliminates restrictions at the...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 manifold and sensors, eliminating the need for custom...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
