the post:
http://www.ppbb.com/boards/ppbbphp/showflat.php?Cat=&Board=MUSEUM&Number=211869&page=14&view=expanded&sb=9&o=&fpart=1
just recall that the 987 takes less oil than the 986. i think the 987 is 8.05l. double check your manuals.
got my filters from suncoast; they came with the drain crush washer and rubber filter o-ring.