Oversize valve seat for 2001-2003 400 cylinder heads – 31mm OD and suits 27mm valve. Original is 30mm. All seats are 1mm oversize ready to replace the original damaged or worn valve seat.

We can also fit these as well for you, please email for details. NOTE: only fits 400 2001-2003

see our part number 101194 for the exhaust valve seat to suit the following models 470, 501, 550 and 644 models 2001-2003.