Diag4Bike Parts & Accessories

28 products

Diag4Bike is a PC-based diagnostic and fuel injection tuning system for Harley-Davidson and Buell motorcycles, connecting via USB or Bluetooth for real-time monitoring of throttle position, engine temperature, oxygen sensors, and other parameters. Covers diagnosis of EFI modules, security systems, and ABS, plus actuator testing for injectors, coils, fuel pumps, and idle controls.

Spans decades of model years with support for both serial and CAN bus protocols. Workshop-level diagnostic capability for home mechanics who want to know what's actually happening with their bike's electronics.

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Showing 1–28 of 28 by Diag4Bike

Diag4Bike DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

Diag4Bike

#732042

£1274.03£1146.63

Member£1082.93-15%

Diag4Bike DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

Diag4Bike

#732056

£956.42£860.78

Member£812.96-15%

Diag4Bike Diag4Tune Air/Fuel Ratio Tuning Monitor

Diag4Tune Air/Fuel Ratio Tuning Monitor

Diag4Bike

#732044

£689.95£620.96

Member£586.46-15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#735441

£651.61£586.45

Member£553.87-15%

Diag4Bike DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

Diag4Bike

#732051

£598.68£538.81

Member£508.88-15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732058

£598.68£538.81

Member£508.88-15%

Diag4Bike DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

Diag4Bike

#732043

£585.91£527.32

Member£498.02-15%

Diag4Bike DIAG-4-TUNE MINI OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE MINI OXYGEN SENSOR TOOL KIT

Diag4Bike

#735435

£565.84£509.26

Member£480.96-15%

Diag4Bike DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

Diag4Bike

#732050

£522.02£469.82

Member£443.72-15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732054

£496.46£446.81

Member£421.99-15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732047

£483.70£435.33

Member£411.15-15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732048

£483.70£435.33

Member£411.15-15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732055

£454.49£409.04

Member£386.32-15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732053

£228.16£205.34

Member£193.94-15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732059

£211.73£190.56

Member£179.97-15%

Diag4Bike Diag4Bike Replacement Wideband O2 Sensor (Lambda Probe)

Diag4Bike Replacement Wideband O2 Sensor (Lambda Probe)

Diag4Bike

#735442

£208.08£187.27

Member£176.87-15%

Diag4Bike TUNING LICENSE FOR DIAG-4-BIKE

TUNING LICENSE FOR DIAG-4-BIKE

Diag4Bike

#D4BLICHD

£189.88£170.89

Member£161.40-15%

Diag4Bike TUNING LICENSE FOR DIAG-4-BIKE

TUNING LICENSE FOR DIAG-4-BIKE

Diag4Bike

#D4BLICIN

£189.88£170.89

Member£161.40-15%

Diag4Bike Diag4Bike CAN Disarming Cable, All H-D Models

Diag4Bike CAN Disarming Cable, All H-D Models

Diag4Bike

#735446

£144.19£129.77

Member£122.56-15%

Diag4Bike DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

Diag4Bike

#735423

£135.07£121.56

Member£114.81-15%

Diag4Bike Diag4Bike Replacement OBD2 Adapter Cable, 2021-Up Softail/Touring/Trike

Diag4Bike Replacement OBD2 Adapter Cable, 2021-Up Softail/Touring/Trike

Diag4Bike

#735445

£100.38£90.34

Member£85.32-15%

Diag4Bike Diag4Bike Replacement 6-Pin CAN-Bus Adapter Cable

Diag4Bike Replacement 6-Pin CAN-Bus Adapter Cable

Diag4Bike

#735437

Member£54.30-15%

Diag4Bike Diag4Bike Replacement 4-Pin J-1850 Adapter Cable

Diag4Bike Replacement 4-Pin J-1850 Adapter Cable

Diag4Bike

#735438

Member£54.30-15%

Diag4Bike TUNING LICENSE FOR DIAG-4-BIKE

TUNING LICENSE FOR DIAG-4-BIKE

Diag4Bike

#735448

Member£52.75-15%

Diag4Bike Diag4Bike Replacement Indian/Victory Adapter Cable

Diag4Bike Replacement Indian/Victory Adapter Cable

Diag4Bike

#758591

Member£48.09-15%

Diag4Bike DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

Diag4Bike

#735449

Member£26.69-15%

Diag4Bike O2 SENSOR ADAPTER INSERT

O2 SENSOR ADAPTER INSERT

Diag4Bike

#758590

Member£14.43-15%

Diag4Bike DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

Diag4Bike

#735443

Member£2.48-15%

Diag4Bike DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

Diag4Bike

#732042

£1274.03 £1146.63

Member £1082.93 -15%

Diag4Bike DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

Diag4Bike

#732056

£956.42 £860.78

Member £812.96 -15%

Diag4Bike Diag4Tune Air/Fuel Ratio Tuning Monitor

Diag4Tune Air/Fuel Ratio Tuning Monitor

Diag4Bike

#732044

£689.95 £620.96

Member £586.46 -15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#735441

£651.61 £586.45

Member £553.87 -15%

Diag4Bike DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

Diag4Bike

#732051

£598.68 £538.81

Member £508.88 -15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732058

£598.68 £538.81

Member £508.88 -15%

Diag4Bike DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

Diag4Bike

#732043

£585.91 £527.32

Member £498.02 -15%

Diag4Bike DIAG-4-TUNE MINI OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE MINI OXYGEN SENSOR TOOL KIT

Diag4Bike

#735435

£565.84 £509.26

Member £480.96 -15%

Diag4Bike DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

DIAG-4-BIKE SERIAL DIAGNOSTIC & FLASH TUNING

Diag4Bike

#732050

£522.02 £469.82

Member £443.72 -15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732054

£496.46 £446.81

Member £421.99 -15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732047

£483.70 £435.33

Member £411.15 -15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732048

£483.70 £435.33

Member £411.15 -15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732055

£454.49 £409.04

Member £386.32 -15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732053

£228.16 £205.34

Member £193.94 -15%

Diag4Bike DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

DIAG-4-BIKE BREAK-OUT BOX FOR PARALLEL DIAGNOSTICS

Diag4Bike

#732059

£211.73 £190.56

Member £179.97 -15%

Diag4Bike Diag4Bike Replacement Wideband O2 Sensor (Lambda Probe)

Diag4Bike Replacement Wideband O2 Sensor (Lambda Probe)

Diag4Bike

#735442

£208.08 £187.27

Member £176.87 -15%

Diag4Bike TUNING LICENSE FOR DIAG-4-BIKE

TUNING LICENSE FOR DIAG-4-BIKE

Diag4Bike

#D4BLICHD

£189.88 £170.89

Member £161.40 -15%

Diag4Bike TUNING LICENSE FOR DIAG-4-BIKE

TUNING LICENSE FOR DIAG-4-BIKE

Diag4Bike

#D4BLICIN

£189.88 £170.89

Member £161.40 -15%

Diag4Bike Diag4Bike CAN Disarming Cable, All H-D Models

Diag4Bike CAN Disarming Cable, All H-D Models

Diag4Bike

#735446

£144.19 £129.77

Member £122.56 -15%

Diag4Bike DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

Diag4Bike

#735423

£135.07 £121.56

Member £114.81 -15%

Diag4Bike Diag4Bike Replacement OBD2 Adapter Cable, 2021-Up Softail/Touring/Trike

Diag4Bike Replacement OBD2 Adapter Cable, 2021-Up Softail/Touring/Trike

Diag4Bike

#735445

£100.38 £90.34

Member £85.32 -15%

Diag4Bike Diag4Bike Replacement 6-Pin CAN-Bus Adapter Cable

Diag4Bike Replacement 6-Pin CAN-Bus Adapter Cable

Diag4Bike

#735437

£63.88 £57.49

Member £54.30 -15%

Diag4Bike Diag4Bike Replacement 4-Pin J-1850 Adapter Cable

Diag4Bike Replacement 4-Pin J-1850 Adapter Cable

Diag4Bike

#735438

£63.88 £57.49

Member £54.30 -15%

Diag4Bike TUNING LICENSE FOR DIAG-4-BIKE

TUNING LICENSE FOR DIAG-4-BIKE

Diag4Bike

#735448

£62.06 £55.85

Member £52.75 -15%

Diag4Bike Diag4Bike Replacement Indian/Victory Adapter Cable

Diag4Bike Replacement Indian/Victory Adapter Cable

Diag4Bike

#758591

£56.58 £50.92

Member £48.09 -15%

Diag4Bike DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

Diag4Bike

#735449

£31.40 £28.26

Member £26.69 -15%

Diag4Bike O2 SENSOR ADAPTER INSERT

O2 SENSOR ADAPTER INSERT

Diag4Bike

#758590

£16.98 £15.28

Member £14.43 -15%

Diag4Bike DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

DIAG-4-TUNE OXYGEN SENSOR TOOL KIT

Diag4Bike

#735443

Member £2.48 -15%

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