2021 Kawasaki EX400G, 2021 Kawasaki Ninja 400, 2021 Kawasaki Z400 Recall: Strength of the camshaft chain tensioner may be insufficient due to…
NHTSA campaign 20V774000 · Engine and Engine Cooling · filed Dec 11, 2020 · verified Jul 30, 2026
The defect
Kawasaki Motors Corp., U.S.A. (KMC) is recalling certain 2021 Z400 ABS (ER400D), Ninja 400 (EX400H) and Ninja 400 ABS (EX400G) motorcycles. The strength of the camshaft chain tensioner may be insufficient due to improper heat treatment, possibly causing it to be damaged.
The risk
A damaged camshaft chain tensioner can cause the engine to stall, increasing the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
KMC will notify owners, and dealers will replace the camshaft chain tensioner, free of charge. Note: Owners are advised to not ride their motorcycles until the repair has been completed. The recall began December 21, 2020. Owners may contact KMC customer service at 1-866-802-9381. KMC's number for this recall is MC20-13.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
Related recalls
Other campaigns involving Kawasaki vehicles
Source: NHTSA recall database, campaign 20V774000 (manufacturer number MC20-13). Data last verified Jul 30, 2026.