Replacement 4TH gear for Type-r ratio (Non JDM gearbox) K series gearboxes .
This will fit
Civic ep3 type-r UK
Civic fn2 type-r UK
Accord cl7 euro-r
Kswap cars with a gearbox from the above
Genuine Honda part - 23450-PNS-000
All Honda gears in the gearbox use 2 gears per gear , this is the half which gets damaged in the synchromesh area