The Prothane 21mm rear sway bar bushings in red are replacement sway/end link bushings specified for 2002–2004 Ford Explorer 2WD and 4WD models. These red bushings match the 21mm bore called out in the description and are intended for the rear sway bar locations on the listed Explorers, providing the exact bushing specification and color noted in the product data for those model years.
Prothane 02-04 Ford Explorer 2/4wd Rear Sway Bar Bushings - 21mm - Red