607547 Lawn-Boy NOS Lawn Boy Starter Pinion 607547. Lawn Boy 3057 - Lawn-Boy Walk-Behind Mower, 1972 (SN: 200000001-299999999) - MODEL D-640 MAGNETO AND STARTER ASSEMBLY MODELS USED ON: 8230. Lawn Boy 3058 - Lawn-Boy Walk-Behind Mower, 1973 (SN: 300000001-399999999) - MAGNETO AND STARTER.. Condition:: New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag. See the seller's listing for full details. See all condition definitions : Brand: : Lawn-Boy , UPC: : Does not apply: MPN: : 607547 ,