It's tempting to reuse the sump plug that is already there but a new one provides a guarantee of cleanliness, and an improved magnetic performance compared with the original Triumph item.
M14x1.50 bolt for all Triumph models since 1992, except for Thunderbird 900 from 1995-1996 which take a 22mm plug and not this one, please check on your bike before ordering.
12 month warranty.
