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NHTSA Recall 21V468000: Fuel rail (fuel system)

Alexander Dennis Inc. reported this safety recall to NHTSA on , covering an estimated 310 vehicles. It affects 2017–2020 Alexander Dennis Enviro 500.

310
vehicles potentially affected
1
model affected
2021
owners notified (June 18)
NHTSA campaign21V468000
ComponentFUEL SYSTEM, DIESEL › FUEL INJECTION SYSTEM › FUEL RAIL
Report receivedJune 23, 2021
Owner notificationJune 18, 2021
Initiated byManufacturer

Defect

Alexander Dennis, Inc. (Alexander Dennis) is recalling certain 2017-2020 E500 buses. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.

Safety risk

A fuel leak in the presence of an ignition source increases the risk of a fire.

Remedy

Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owner notification letters were mailed June 18, 2021. Owners may contact Alexander Dennis customer service at 1-951-244-9429.

Notes

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.nhtsa.gov.

Vehicles covered by recall 21V468000

Make and modelModel years
Alexander Dennis Enviro 5002017, 2018, 2019, 2020

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.