1、OE Number: The referencing OE number of this crank mounted sea raw water pump are 841640, 857451, 856952, 855722, 10‑24915, F 6B 9. 2、Fitment: The raw water pump assembly is a replacement for V6 V8 AQ 1979‑1993, please check the model and year of manufacturing before ordering. 3、Important Parameter: The depth of the water pump impeller is 1‑15/16in, the inlet diameter is 1‑1/4in, and the outlet diameter is 1‑1/4in. 4、Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability. 5、Easy to Install: Stringently manufactured to meet the original standard, perfect replacement for the old or broken one, improving the time efficiency.