Genuine OEM Volkswagen Seat Frame with Height Adjustment, part number 5QF881106J. This part serves as the primary structural support for the seat assembly and incorporates the mechanism for adjusting the seat's height. It is located as the base of the seat. The seat frame weighs 9.684 kg. Genuine OEM seat frames are built to precise tolerances for structural integrity and smooth, reliable operation of height adjustment mechanisms, ensuring occupant safety and comfort.