Part Number: TCA16388. Compatible with X series models: X340, X495, X320, X324, X390, X394, X350, X534, X370, X485, X534, X540, X380, X384, X300, X304, X465, X475, X570, X500, X520, X530, X575, X580, X720, X724,X585, X590, X595, X700, X584, X710, Compatible with Ztrak series models: Z540R, Z625, Z510A, Z520A, Z525E, Z535M, Z645, Z910A, Z425, Z435, Z655, Z710A, Z810A, Z355E, Z355R, Z535R, Z540M, Z920A, Z375R, Z820A, Z830A, Z840A, Z445, Z925A Compatible with GX GT LT LX series models: GX355, GX255, GX345, GT225, GT235, GX325, GX335, GT235E, GT245, LX280, LT180, LX289 Compatible with 4210, 4310, 4410, 2026R, 2210, 4010, 1023E, 4510, 4610, 4710, 1025R, 1026R, 2025R, 4115, 4110 Easy Installation: With a user-friendly design, the TCA16388 kit can be easily installed without the need for professional tools or complicated instructions, making it perfect for DIY lawn mower repairs.