Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 64415c01 Train Buffer Beam with Sealed Magnets and Plow [Type 1] this part is a sub-part of it
• 64415c02 Train Buffer Beam with Sealed Magnets and Plow with Screw [Type 2] this part is a sub-part of it