Defect summary
Nova Bus (US) Inc. (Nova Bus) is recalling certain Ametek MCP and ECP water pumps. The impeller shaft may be loose, causing the pump to fail.
Consequence
A pump failure can cause a loss of drive power, increasing the risk of a crash.
Remedy
Nova Bus will inspect and replace the pump as necessary, free of charge. Owner notification letters were mailed January 30, 2026. Owners may contact Nova Bus customer service at 1-450-472-6410. Nova Bus' number for this recall is ER25510.
Source: NHTSA ODI recalls file, campaign 25E083000. Text as published by NHTSA.