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.

• 42819 Door 1 x 4 x 5 Train Right - Thick Support Bottom Mold of this part
• 4182pr0001 Door 1 x 4 x 5 Train Right with Yellow Bottom Half Print Print of this part
• 4182pr0002 Door 1 x 4 x 5 Train Right with Red Bottom Half Print Print of this part
• 4182pr0003 Door 1 x 4 x 5 Train Right with White Stripe Print Print of this part
• 4182pr0004 Door 1 x 4 x 5 Train Right with Red/White/Blue Stripe Print Print of this part
• 4182pr0005 Door 1 x 4 x 5 Train Right with Blue Bottom Half Print Print of this part
• 4182pr0006 Door 1 x 4 x 5 Train Right with Red/Blue Stripe Print Print of this part
• 4182pr0007 Door 1 x 4 x 5 Train Right with Yellow Stripe Print Print of this part
• 4182pr0008 Train Door 1 x 4 x 5 Right White Stripe Train Logo Print Print of this part
• 4182pr0009 Door 1 x 4 x 5 Train Right with Green Stripe, Train Logo and Rivets Print Print of this part
• 4181 Door 1 x 4 x 5 Train Left this part is a pair of it
• 4183 Glass for Train Door Lip On Top and Bottom Pair of this part