BDM100050L is a retaining pin for the door check arm mechanism, which controls how far a door opens and holds it in position at set intervals. The check arm pin secures the arm within its bracket on the door or body pillar; if this pin wears, shears, or goes missing, the door will fail to hold open and the check arm may disengage entirely, causing uncontrolled door movement and accelerated wear to surrounding components. Key Features Small-diameter metal retaining pin designed to locate and secure the door check arm assembly Direct OEM replacement for the original pin - no modification required for installation Matches the original Land Rover specification reference BDM100050L Inspect the check arm strap and bracket for wear when replacing this pin, as these components often wear together Vehicle Fitment This pin fits the Discovery 1 (1989–1998), Discovery 2 (1998–2004), Freelander 1, Freelander 2/LR2, Range Rover P38 (1995–2002), and Range Rover Classic across all body variants requiring door check arm retainer components. Not sure about fitment? Feel free to get in touch at [email protected]