KAWASAKI 2021 KAWASAKI NINJA 400 Recall
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2021 KAWASAKI NINJA 400
Brand
KAWASAKI
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2021
Kawasaki Motors Corp., U.S.A. is recalling certain 2021 KAWASAKI NINJA 400 vehicles due to engine and engine cooling:engine:hard parts internal/mechanical issues. A damaged camshaft chain tensioner can cause the engine to stall, increasing the risk of a crash.. CRITICAL: Do not drive until repaired.
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
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.
Reported concern (NHTSA)
A damaged camshaft chain tensioner can cause the engine to stall, increasing the risk of a crash.
Recommended Action
Per NHTSA guidance
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.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026