Center Case Gasket (Large Crank)

NOTE: The Explorer used two different center case gaskets depending on the crankshaft style.

The older small diameter crank uses the OW-991-606 and the newer style large diameter crank uses OW-123-215.

Most times the cases must be split to determine which gasket is required for the Explorer.

Model	Number	Year(s)
Desert Phantom	B18XXXX	1974 - 1978
Enduro Phantom 125cc	B54XXXX	1975 - 1977
Explorer 350cc	B55XXXX	1976 - 1978
MAR (Mick Andrews Replica) 350cc	B24XXXX	1975 - 1976
MAR (Mick Andrews Replica) 350cc	B241801+	1976 - 1977
Phantom 125cc	B16XXXX	1974 - 1975
Phantom 175cc	B17XXXX	1974 - 1975
Phantom 250cc	B18XXXX	1974
Phantom GP1	B19XXXX	1975
Phantom GP2	B46XXXX	1976
Phantom GP3	B60XXXX	1977
SIX DAY (ISDT)	NA	1978
ST-1	NA	1977
Super Pioneer	B31XXXX	1974 - 1975
Super Pioneer (Mountaineer) 350cc	B53XXXX	1976 - 1977