This is a required tool to fill or add fluid to the 5R55W automatic transmission used on 2003 - newer Ford Explorers. Same as Ford No. 307-437. Operating instructions: remove fill plug from transmission: install No.OTC 6604: fill transmission to correct fluid level: remove No. OTC 6604: and reinstall fill plug in transmission.
OTC 6604 Transmission Fluid Fill Adapter
Follow us on social media