Order a new oil filter for the M113 FOV’s 6V53 engine with NSN 2940-01-633-3432 (PN PH3612). It replaces NSN 2940-01-197-7106 (PN FL804FP), which is shown as Item 9 in Fig. 22 of TM 9-2815-205-24P (Feb 13).
The old oil filter has a high rate of failure. Make a note until the TM is updated.