Panasonic Microwave Magnetron Witol 2M518J (17470000000797) Fits NN-SB448S. Condition is Used but tested and proven to be working 100%

This part fits 4 models from Panasonic:

Mscnnsb428s

Mscnnsb438s

Mscnnsb448s

Mscnnsb458s

& can be found in many other brands of microwaves as well.