The Mercedes 200 220 240 300 D TD Sliding Rail 6150521016 09166 W115 W110 W123 is a guide rail designed by SWAG for Mercedes-Benz vehicles. This high-quality part is essential for timing components and engine parts, ensuring smooth and precise engine performance. With its manufacturer part number 2.09.1038 and reference OE/OEM numbers 6150521016 09166, this sliding rail is a reliable and durable component for your vehicle.