This blower motor resistor is a genuine Mercedes-Benz OEM part with part number 2108700210 / A2108700210 / A 210 870 02 10 0210. It is made of plastic and steel materials, has a mounting style of bolt-on, and measures 1 cm in length and 0.5 inches in height. This blower motor resistor is suitable for use with the 97-04 Mercedes R170 SLK230 CLK320, and CLK55 AMG models. It is also compatible with the W208 CLK320 CLK430 CLK55 AMG models and has an interchange part number of 2028209342 / A2028209342 / A 202 820 93 42 9342. The package comes with a fixing bolt, and it has a warranty of 90 days.