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
-
STANDARD MOTOR PRODUCTS Air Module Idle MC-IAC3
STANDARD MOTOR PRODUCTS
$75.95See factory parts manual for part number and application, OEM replacement parts10220085- SKU:
- 10220085
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
- PRODUCT NAME:
- CONTROL MODULE
- TYPE:
- IDLE AIR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$75.95 -
STANDARD MOTOR PRODUCTS Throttle Position Sensor MC-TPS2
STANDARD MOTOR PRODUCTS
$43.95See factory parts manual for part number and application, OEM replacement parts10220073- SKU:
- 10220073
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- TYPE:
- THROTTLE POSITION
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SENSOR
- UNITS:
- EACH
$43.95 -
STANDARD MOTOR PRODUCTS Air Module Idle MC-IAC2
STANDARD MOTOR PRODUCTS
$64.95See factory parts manual for part number and application, OEM replacement parts10220074- SKU:
- 10220074
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- CONTROL MODULE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- IDLE AIR
$64.95 -
STANDARD MOTOR PRODUCTS Throttle Position Sensor MC-TPS1
STANDARD MOTOR PRODUCTS
$66.95See factory parts manual for part number and application, OEM replacement parts10220076- SKU:
- 10220076
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SENSOR
- RIDING STYLE:
- STREET
- TYPE:
- THROTTLE POSITION
- UNITS:
- EACH
$66.95 -
STANDARD MOTOR PRODUCTS Map Sensor - Original Equipment Manufacturer 32316-99 MC-MAP3
STANDARD MOTOR PRODUCTS
$78.95See factory parts manual for part number and application, OEM replacement part10220075- SKU:
- 10220075
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- TYPE:
- MAP
- PRODUCT NAME:
- SENSOR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$78.95 -
HORSEPOWER, INC Throttle Body - Black - 51mm /1.71 HPI-51D1-17B
HORSEPOWER, INC
$784.95Includes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and seals, Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque, Brass throttle blade resists deflection, which helps maintain...10220236- SKU:
- 10220236
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- MATERIAL:
- ALUMINUM
- MODEL:
- CABLE DRIVEN™
- TYPE:
- SINGLE BORE
- BORE SIZE METRIC:
- 51.00 MM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- THROTTLE BODY
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.71'
$784.95 -
HORSEPOWER, INC Throttle Body - Black - 55mm/1.80 HPI-55D1-18B
HORSEPOWER, INC
$784.95Includes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and seals, Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque, Brass throttle blade resists deflection, which helps maintain...10220237- SKU:
- 10220237
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- BORE SIZE METRIC:
- 55.00 MM
- MODEL:
- CABLE DRIVEN™
- TYPE:
- SINGLE BORE
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.80'
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
$784.95Qty in Cart: 0Quantity:Price:$784.95Subtotal: -
HORSEPOWER, INC Throttle Body - Black - 51mm/1.71 HPI-51D6-17B
HORSEPOWER, INC
$784.95Includes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and seals, Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque, Brass throttle blade resists deflection, which helps maintain...10220238- SKU:
- 10220238
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- MATERIAL:
- ALUMINUM
- MODEL:
- CABLE DRIVEN™
- RIDING STYLE:
- STREET
- TYPE:
- SINGLE BORE
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- BORE SIZE METRIC:
- 51.00 MM
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.71'
- PRODUCT NAME:
- THROTTLE BODY
$784.95 -
HORSEPOWER, INC Throttle Body - Black - 55mm/1.80 HPI-55D6-18B
HORSEPOWER, INC
$784.95Includes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and seals, Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque, Brass throttle blade resists deflection, which helps maintain...10220239- SKU:
- 10220239
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- BORE SIZE METRIC:
- 55.00 MM
- MATERIAL:
- ALUMINUM
- MODEL:
- CABLE DRIVEN™
- RIDING STYLE:
- STREET
- TYPE:
- SINGLE BORE
- PRODUCT NAME:
- THROTTLE BODY
- COLOR/FINISH:
- BLACK
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.80'
- UNITS:
- EACH
$784.95 -
HORSEPOWER, INC Throttle Body - Black - 55/1.80 HPI-55MF1-18B
HORSEPOWER, INC
$884.95Completely replaces OEM throttle body and manifold; fully compatible with OEM components, Specifically designed for larger cubic inch motors that require substantial airflow, Equipped with a sealed double roller bearing for smooth throttle operation,...10220240- SKU:
- 10220240
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- MODEL:
- MAX FLOW I™
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.80'
- UNITS:
- EACH
- BORE SIZE METRIC:
- 55.00 MM
- TYPE:
- SINGLE BORE
$884.95 -
HORSEPOWER, INC Throttle Body - Black - 55/1.80 HPI-55MF6-18B
HORSEPOWER, INC
$884.95Completely replaces OEM throttle body and manifold; fully compatible with OEM components, Specifically designed for larger cubic inch motors that require substantial airflow, Equipped with a sealed double roller bearing for smooth throttle operation,...10220241- SKU:
- 10220241
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- COLOR/FINISH:
- BLACK
- BASE COLOR:
- BLACK
- BORE SIZE METRIC:
- 55.00 MM
- TYPE:
- SINGLE BORE
- UNITS:
- EACH
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.80'
- MATERIAL:
- ALUMINUM
- MODEL:
- MAX FLOW I™
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
$884.95 -
HORSEPOWER, INC Throttle Body - Black - 51mm/1.66 HPI-51D1-16B
HORSEPOWER, INC
$784.95Includes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and seals, Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque, Brass throttle blade resists deflection, which helps maintain...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
$784.95 -
THUNDERMAX Oxygen Sensor 309-355
THUNDERMAX
$129.95Easy installation: replace the factory ECM, install new O² sensors and harness, load the correct map for your bike, and ride, New maps, software, firmware updates, map analysis and tech support available online at no charge, Does not require dyno tuning,...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 -
HORSEPOWER, INC Throttle Body - Black - 58/1.80 HPI-58D6-18B
HORSEPOWER, INC
$884.95Completely replaces OEM throttle body and manifold; fully compatible with OEM components, Specifically designed for larger cubic inch motors that require substantial airflow, Equipped with a sealed double roller bearing for smooth throttle operation,...10220249- SKU:
- 10220249
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- BORE SIZE METRIC:
- 58.00 MM
- INTAKE RUNNER LENGTH IMPERIAL:
- 1.80'
- MATERIAL:
- ALUMINUM
- MODEL:
- MAX FLOW I™
- PRODUCT NAME:
- THROTTLE BODY
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- TYPE:
- SINGLE BORE
$884.95 -
HORSEPOWER, INC Injector Fuel - 6.2 gm/sec - Pair HPI-D1NJ-1
HORSEPOWER, INC
$285.95Recommended for "Big Inch" engines with large plenums (120 hp or greater), 43% increase in flow over stock injectors, 6.2 gps (grams per second), Made in the U.S.A.10220083- SKU:
- 10220083
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- FLOW RATE METRIC:
- 6.20 G/S
- MODEL:
- YELLOW BAND
- PRODUCT NAME:
- FUEL INJECTOR
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
$285.95 -
THUNDERMAX ECM Harness 309-324
THUNDERMAX
$20.95It is installed to the bike's wiring harness at the 36-pin ECM connector (connection requires harness plug disassembly; two terminated wires are inserted into two unused ports in the 36-pin connector, and a ground wire added), Handy for motorcycle models...10220059- SKU:
- 10220059
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- COMMUNICATION HARNESS
- RIDING STYLE:
- STREET
$20.95 -
FEULING OIL PUMP CORP. Fuel Injector 9945
FEULING OIL PUMP CORP.
$99.95OEM replacements and upgrades available as listed10220228- SKU:
- 10220228
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- FLOW RATE IMPERIAL:
- 42.06 LB/H
- PRODUCT NAME:
- FUEL INJECTOR
- RIDING STYLE:
- STREET
$99.95 -
FEULING OIL PUMP CORP. EV-6 Series Fuel Injector - M8 - 6.1 9935
FEULING OIL PUMP CORP.
$169.95OEM replacements and upgrades available as listed10220230- SKU:
- 10220230
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- FUEL INJECTOR
- PRODUCT NAME:
- FUEL INJECTOR RACE ONLY
- FLOW RATE IMPERIAL:
- 48.41 LB/H
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$169.95 -
FEULING OIL PUMP CORP. EV-1 Series Fuel Injector - Yellow - 6.2 9939
FEULING OIL PUMP CORP.
$169.95OEM replacements and upgrades available as listed10220231- SKU:
- 10220231
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- FUEL INJECTOR
- UNITS:
- EACH
- FLOW RATE IMPERIAL:
- 49.21 LB/H
- RIDING STYLE:
- STREET
$169.95 -
FEULING OIL PUMP CORP. Fuel Injector 9941
FEULING OIL PUMP CORP.
$99.95OEM replacements and upgrades available as listed10220113- 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
