This CP Pistons piston kit is a forged, standard-bore replacement for the 2018-2020 Kawasaki Ninja 400. It runs a 70mm standard bore and a 13.0:1 compression ratio for strong, reliable power. Includes pistons, rings, pins, and locks.
| Application | Kawasaki Ninja 400 |
| Years | 2018-2020 |
| Bore | 70 mm (standard) |
| Stroke | 51.8 mm |
| Displacement | 399 cc |
| Compression | 13.0:1 |
| Includes | Pistons, rings, pins, locks |
| Part Number | MX3042 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
