This part uses the following part numbers: Protherm - 0020056464 The part is compatible with the following boilers: Bear 20 KLZ v.16 Bear 30 KLZ v.16 Bear 40 KLZ v.16 Bear 50 KLZ v.16 Bear 20 KLZ v.17 Bear 30 KLZ v.17 Bear 40 KLZ v.17 Bear 50 KLZ v.17
