<ul><li>This starter combo compatible with Vertex 16, 18 and 21 Engines and also SH 18 and 21 CXP engines.NOT FIT for engines larger than .18 (.19 + etc),Not suitable for 1/16 engines (.07 or .05 for example).</li><li>Compatible with HSP HPI Axial Redcat Volcano S30 Hobao Himoto Kyosho 1/10 RC nitro truck car.Suitable for Engine 12mm hex Diameter shaft,6mm one way bearing.(The one way bearing NOT include)</li><li>Replacement Part No.:11011(Backplate)& 11003(Drill Start Wand).Backplate Screw Hole Distance:27mm;Hex Screw Size: 12mm;Shaft Rod Length:150mm.A great replacement part for the old or broken one.</li><li>Used with electric drill starters in kit 70111.Apply in 1:8 or 1:10 engine car ,off-road Truck ,off-road buggy,off-road car</li><li>Parts Name: Shaft rod pin end / Drill start wand.Length:150mm/5.90in.Replace you old or broken part (No.11003)</li></ul><br><br>

RC Electric Roto Starter E-Start Backplate Power Back Cover 11011 & Drill Start Wand Power Starter Shaft Rod Pin End 11003 & Metal Power Starter Shaft Rod Pin End,Drill Start Wand 70111