Variant 1
ECU- Catalog engine
- 88cu 63HP
- Controller brand
- DELPHI
- ECU
- J1850
- Stock power
- 63 HP
- SW upgrade
- 34330-06
- Calibration
- 34330-06
HARLEY DAVIDSON · J1850 ECU
HARLEY DAVIDSON Street Bob J1850 tuning files
Tuning file coverage for the HARLEY DAVIDSON Street Bob running the J1850 ECU. Stock output across the matched variants spans 63–63 HP. 9 distinct variants are catalogued here. Stage 1 and Stage 2 are the safe starting points for this platform. We match the right calibration to your exact software and validate it before delivery.
Available solutions
Solutions that apply to the J1850 on this vehicle platform. The exact set depends on the specific engine and software version.
Engine variants & ECU software
9 distinct variants for the HARLEY DAVIDSON Street Bob on the J1850 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 88cu 63HP
- Controller brand
- DELPHI
- ECU
- J1850
- Stock power
- 63 HP
- SW upgrade
- 141NP002-001
- Calibration
- 141NP002-001
Variant 3
ECU- Catalog engine
- 88cu 63HP
- Controller brand
- DELPHI
- ECU
- J1850
- Stock power
- 63 HP
- SW upgrade
- 32903-06B
- Calibration
- 32903-06B
Variant 4
ECU- Catalog engine
- 88cu 63HP
- Controller brand
- DELPHI
- ECU
- J1850
- Stock power
- 63 HP
- SW upgrade
- 34363-06
- Calibration
- 34363-06
Variant 5
ECU- Catalog engine
- 88cu 63HP
- Controller brand
- DELPHI
- ECU
- J1850
- Stock power
- 63 HP
- ECU HW
- 34363-06
- SW upgrade
- 32902-06
- Calibration
- 32902-06
Variant 6
ECU- Catalog engine
- 88cu 63HP
- Controller brand
- DELPHI
- ECU
- J1850
- Stock power
- 63 HP
- SW upgrade
- 32899-06B
- Calibration
- 32899-06B
Variant 7
ECU- Catalog engine
- 88cu 63HP
- Controller brand
- DELPHI
- ECU
- J1850
- Stock power
- 63 HP
- SW upgrade
- 34201-06A
- Calibration
- 34201-06A
Variant 8
ECU- Catalog engine
- 88cu 63HP
- Controller brand
- DELPHI
- ECU
- J1850
- Stock power
- 63 HP
- SW upgrade
- 34399-06
- Calibration
- 34399-06
Variant 9
ECU- Catalog engine
- 88cu 63HP
- Controller brand
- DELPHI
- ECU
- J1850
- Stock power
- 63 HP
- SW upgrade
- 34303-06
- Calibration
- 34303-06
Related vehicles
Other vehicles built on the J1850 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the HARLEY DAVIDSON Street Bob on the J1850?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the J1850 ECU software on this model?
Yes — the HARLEY DAVIDSON Street Bob on the J1850 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.