Do I need a sender for a ST 602 Sun Tach? | The H.A.M.B. Dec 22, 2011Howdy I believe this is a ST 602 Sun Tach. Do I need a sender for it? it has 4 wires- red yellow and green in a light brown insulation and a single gray wire.Technical - Sun Tach ID? | The H.A.M.B.Sep 18, 2017Where do the wires go on a Sun Super Tach II? | The H.A.M.B.May 03, 2014old SUN tach question | The H.A.M.B.Sep 09, 2003See more results sun st 602 tach | eBay Save sun st 602 tach to get e-mail alerts and updates on your eBay Feed. + Items in search results. SPONSORED. See search results that fit your vehicle. Wiring Kit for Original Sun Super Tach 2 Tachometers With Bullet Connectors NEW. Brand New. $14. Save up to 14% when you buy more. Buy It Now. FAST 'N FREE.