This product is a genuine Mercedes-Benz rocker arm specifically designed for models such as the W123, W124, W201, and M102 engines. The manufacturer part number is A1020500133, and it can be cross-referenced with other OE/OEM numbers like A1020500633, A1020500501, and A1020500301. This NOS (new old stock) rocker arm is a high-quality component that is essential for the proper functioning of the engine's valvetrain system, ensuring smooth and efficient operation.
