I've tried a few Calliper service kits over the years and they never lasted for me. Same for Master Cylinder kits. I replace the whole units now. Even a good 2nd hand one is usually a better deal IMHO.
This is the right hand part number 59300-33D90-999
according to here for my 1999
https://www.cmsnl.com/suzuki-sv650-1.../BLCK0026.html
If you match up your year using parts-fiche and if they are the same or you get the
correct part number there's some decent looking ones for around 45 squids on eBay,
https://www.ebay.co.uk/sch/i.html?_f...1-999&_sacat=0
HTH