The Gearbox Assembly is a genuine TrenchBadger replacement part made to fix a broken or worn gearbox. Replace by reassembling carefully to the engine pole. Made for the TrenchBadger Pro Series, a versatile, portable trencher designed for fast installations. Its lightweight design and portability make it easy to transport. Its powerful 1.9HP engine and carbide tip excavating blades offer full authority to dig up to 12" through the toughest soils and roots making it easier to get the job done right!