This from Bill Friedrich:

The City of Rockford had issues with apparatus breaking down due to age so they started purchasing used apparatus. One from Naperville, two from Elmhurst and one from St.Charles. There are no plans to repaint these vehicles to the Rockford FD color scheme.

Naperville Fire Department Engine 2 EONE Hush

Naperville Engine 2 (311), a 1991 EONE Hush 1500/1000. Bill Friedrich photo

Rockford Fire Department Engine 6 X-Naperville

Rockford Fire Department Engine 6 is X-Naperville Engine 2 (311). A 1991 EONE Hush 1500/1000. Bill Friedrich photo

Elmhurst Fire Department Engine 1 Darley

Elmhurst ran this 1990 Spartan Monarch/Darley 1500/500 as Engine 1. Bill Friedrich photo

Rockford Fire Department Engine 15

Rockford Engine 15 is a 1990 Spartan Monarch/Darley 1500/500 which is X-Elmhurst Engine 1. Bill Friedrich photo

St. Charles Fire Department Seagrave engine

The entire St. Charles fleet used to be white over lime green like this 1996 Seagrave fixed cab engine. Engine 106 carried 500 gallons of water and had a 1,500-GPM pump. Bill Friedrich photo

Rockford Fire Department Engine 18

Rockford Engine 18 is this 1996 Seagrave 1500/500 which is X-St. Charles Engine 106. Bill Friedrich photo