Find Input Part OEM number or machinery model STUMP GRINDER Select model STUMP GRINDER Caterpillar parts: For full view, you need register SG16 STUMP GRINDER SG16 ALJ (1999) SG16B STUMP GRINDER SG16B MAP (2003) SG18 STUMP GRINDER SG18 AMG (1999) SG18B STUMP GRINDER SG18B SGL (2003) online parts diagram catalog Search for genuine and aftemarket cat parts.