To find the exact Stabilus part number, locate the printed or laser-etched text label directly on the body cylinder of the existing gas strut. This stamped string typically features the unique multi-digit part number, the manufacturing date code, and the specific nominal extension force measured in Newtons (N). If the text has faded, you can cross-reference the part by measuring the extended length, compressed length, rod diameter, and cylinder tube dimensions, or by checking vehicle/equipment catalogs.