The most active engine in the Glendale Fire Department’s fleet of vehicles was so notorious that it had its own nickname – the vortex – because the busy engine was constantly pulling in firefighters from other units.

But “the vortex,” also known as Engine 151, was retired on Wednesday after a donation from tribal gaming funds helped Glendale purchase a new truck to replace the aging workhorse.

“Old Engine 151 has been in service for over a decade,” said Glendale fire Capt. Ron Hart, a department spokesman. “It runs about 3,500 calls a year.”

The new engine, paid through donations from the Salt River Pima-Maricopa Indian Community, arrived at the station near 52nd Avenue and Lamar Road at about 9 a.m. Wednesday with lights flashing and sirens blaring as it approached its new home.