ok for car73 I am using C00196539
for car 72 I am using 50265479001 and there is C00194594 for 25p more
yes they are more expensive but I find the brush angle is more accurate so less sparking. Years ago lots of pattern brushes where Morganite a trusted british brand
where poss I go for gen parts. the pattern market is driven by engineers who want to make more and more profit. Cooker elements are the same, unless price is silly quote and fit only genuine parts. saves lots of call backs
Dave