This valve tappet is suitable for engine of the MAN & MERCEDES BENZ. Which model number for MAN is D 2876 / D 2530 / D 2538 and model for MERCEDES BENZ is OM 442 turbo. OE Number For MAN: - 51.04301.0109 & 51.04301.0110 / For MERCEDES BENZ: - 476050-0025 & 422050-0325. Size:- OD - 32 mm, ID - 19.95 mm, L - 76.20 mm.