A silane crosslinkable rubber composition having a silane crosslinkable rubber in which a silane coupling agent is grafted onto a base rubber containing 61 to 99 mass % of ethylene-α-olefin rubber and 1 to 39 mass % of polypropylene-based resin, and with respect to 100 parts by mass of the base rubber, 0.3 to 400 parts by mass of inorganic filler, and 0.0001 to 0.5 parts by mass of silanol condensation catalyst; a silane crosslinked rubber molded body obtained by bringing the rubber composition into contact with water after molding; a silane crosslinked rubber molded article including the rubber molded body; and a method of producing a silane crosslinkable rubber composition and a silane crosslinked rubber molded body.