I have a brand-spankin'-new in the box original Tecumseh piston kit, part # 35340A. It is a .010" oversize piston and the kit includes wrist pin, clips and piston rings. Asking $80 or Best Offer
I don't know every model engine it might be for but I do know for a fact that it's for a Craftsman lawn tractor with a 12HP Tecumseh vertical engine, engine model OVXL 120 (overhead valve medium frame extra life is what "OVXL" stands for)
$80 or BEST OFFER
I'm told that it also fits these model engines:
Tecumseh OHSK120-222002A - Tecumseh 4-Cycle Horizontal Engine - Engine Parts List #1
Tecumseh OHSK120-222005A - Tecumseh 4-Cycle Horizontal Engine - Engine Parts List #1
Tecumseh OVM120-200006B - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVM120-200007 - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVM120-200009B - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVM120-200010 - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVM120-200011A - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVM120-200013 - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVM120-200014B - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVM120-200019B - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202000D - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202003C - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202004 - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202006C - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202008B - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202011 - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202012 - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202014 - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202016A - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202017C - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202021B - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202022B - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202032C - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202037C - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202041D - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202043C - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202044C - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202045C - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202204 - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Tecumseh OVXL120-202205 - Tecumseh 4-Cycle Vertical Engine - Engine Parts List #1
Hard to come by so if you need one, I have it.
If you're in Winchester I can meet you next time I'm in town to save you a trip or I can ship it. Might even be able to talk me into FREE SHIPPING!!