Compatible with many small engines and generators of 389cc, 420cc, 439cc and 459cc. Fits for GX340(11HP) GX390(13HP) GX610(18HP) GX620(20HP) Generator Parts Replacement manufacturer part Part Number: 28400-ZE3-W01ZA,28400-ZE3-W01ZB,28400-ZE3-W01ZP Replace 31-060, Rotary 26-10379, 150-707 Length center to center hole is 200mm/7.87in 1. quality replacement for lawn mower pull . 2. Easy to use with the pull rope for starting the grass cutter. 3. perfect replacement for the broken of grass cutter. name:Pull Start Assembly Material: Metal+plastic Color: As Shown To avoid purchasing the wrong engine parts, please carefully check the engine model and part number before buying. Package Contents: 2 x 3 x ropes 9 x screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.