PartSwap Moto · Spec sheet
Countershaft Sprocket 530 / 17T
Drivetrain · Harley-Davidson
Imperial
Verified fitment
| OEM no. | 40273-91 |
|---|---|
| Thread | 1-1/8-18 UNEF mainshaft nut (LH) |
| Dimensions | 530 pitch, 17 teeth |
| Rider reports | 0 fit · 0 didn't fit |
Imperial / SAE hardware: use SAE tools (inches).
Metric ⇄ Imperial
- 1-1/8-18 UNEF = 28.57mm dia · 1.411mm pitch
Compatible bikes
Harley-Davidson Sportster 1991-2003 (chain)
Interchangeable parts
| Part | OEM no. | From / fits | Notes |
|---|---|---|---|
| Front Sprocket | JTF283.17 | Aftermarket JT | Direct fit |
Torque specs (typical, confirm in manual)
| Fastener | Nm | ft-lb | in-lb |
|---|---|---|---|
| Sprocket nut (LH thread) | 149 | 110 | 1319 |
| Lock plate screws | 11 | 8.11 | 97.4 |
Lock plate screws
Fitment notes
Mainshaft nut is left-hand thread. Use red Loctite and lock plate.