The window regulator is the mechanical assembly responsible for raising and lowering the door glass on the Defender's right-hand door. This unit operates via a scissor or cable mechanism driven by the window winder handle, and failure typically presents as the glass dropping into the door, becoming stiff to operate, or refusing to move at all. Fitting the correct side-specific regulator is essential, as left and right units are not interchangeable due to differing mounting geometry. Key Features Right-hand door fitment - side-specific design, not suitable for left-hand door applications Designed to integrate with the existing Defender door card and winder handle assembly without modification OEM-specification replacement matching the original regulator fitted from chassis number LA932487 onwards Inspect the door glass run channels and winder handle mechanism for wear when replacing the regulator, as worn components accelerate regulator failure Vehicle Fitment This window regulator fits the Land Rover Defender (90, 110, and 130) from 1986 to 2006 (right-hand side, from chassis number LA932487), and Defender models from 2007 onwards (right-hand side). Not sure about fitment? Feel free to get in touch at [email protected]