to check suzuki part numbers between models check here first

[seth]

http://www.robinsonsfoundry.co.uk/shop/online-store/suzuki-parts-finder/gsx/gsx1400/k2-k3-k4-k5-k6-k7-2002-2007.htm

robinsons suzuki have interactive microfishes for the gsx1400 (other models too)
so you can check standard parts between models and see what and if they changed or updated anything.

[froudy]

Good post Seth...I use it all the time for reference