This Differential seal kit works on the following models
2001 4X4 Arctic Cat 250
1998-2001 4X4 Arctic Cat 300
1998-2001 4X4 Arctic Cat 400
1998 4X4 Arctic Cat 454
1998-2001 4X4 Arctic Cat 500
2001 4X4 Arctic Cat 250
1998-2001 4X4 Arctic Cat 300
1998-2001 4X4 Arctic Cat 400
1998 4X4 Arctic Cat 454
1998-2001 4X4 Arctic Cat 500