The Welger 0951120100 plunger cylinder is a genuine OEM replacement part designed for various Welger AP and D series balers. This essential component ensures the proper functioning of the baler's plunger mechanism, contributing to efficient and consistent baling operations. Manufactured to Welger's original specifications, it guarantees optimal performance and durability. Confirmed fitment for models including AP 45, AP 50, AP 51, AP 52, AP 53, AP 61, AP 63, AP 71, AP 73, AP 83, AP 400, AP 500, AP 530, AP 600, AP 630, AP 730, AP 830, D 4000, D 5000, D 6000, and D 8000.