PartSwap Moto · Spec sheet
CV Carburetor 40mm (CV40)
Fuel System · Harley-Davidson
Mixed
Verified fitment
| OEM no. | 27490-04 |
|---|---|
| Thread | Imperial mounting bolts 1/4-20, metric float bowl screws M4 |
| Dimensions | 40mm bore CV |
| Rider reports | 0 fit · 0 didn't fit |
Mixed hardware: check each fastener before choosing tools.
Metric ⇄ Imperial
- 1/4-20 = 6.35mm dia · 1.27mm pitch
- 40mm = 1.575in
Compatible bikes
Harley-Davidson Sportster 1988-2006 · Harley-Davidson Big Twin Evo/Twin Cam 1990-2006
Interchangeable parts
| Part | OEM no. | From / fits | Notes |
|---|---|---|---|
| Keihin CV40 | 27421-99C | Harley-Davidson Twin Cam 1999 | Direct fit, check jetting |
Fitment notes
Japanese Keihin carb on American bike - expect mixed metric and SAE hardware.