It corresponds to (or is interchangeable with) Bosch 0280150653 — many listings show “Bosch 0280150653 / Mopar 4418614” as the same injector. 
 
🚗 What vehicles / engines it fits
According to several parts-fitment sources, 4418614 fits a variety of late-1980s / early-1990s Chrysler-Dodge-Plymouth vehicles using 2.5 L (and in some trim 2.2 L or 2.6 L) throttle-body EFI engines.
 
Examples include (not exhaustive — always check your VIN/engine): 
Dodge Caravan — 1988–1989 2.5 L F/I (Vin K) BIG DAWG DIESEL+1
Plymouth Voyager / Plymouth Caravelle / Plymouth Reliant / Plymouth Sundance — late-1980s 2.5 L engines. 
Chrysler LeBaron (1988–1989 2.5 L EFI, various trims) 
Dodge Aries / Dodge Spirit — 1988–1989 2.5 L EFI. 
Chrysler Daytona / Chrysler Dynasty — late-1980s 2.5 L (Vin K) EFI versions.