O-ring carries Tamco/Toku part number Y10212060 and is stocked here under TK-Y10212060. Its job is to hold the pressure boundary between two mating faces; a hardened or nicked seal shows up as lost power and a damp housing well before anything else fails.

The published breakdown lists it on the THH 1 2 3 4 Chipping Hammer and THA 1 2 3 4 Chipping Hammer. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.

The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram library. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.

• Part number: Y10212060
• Manufacturer: Tamco/Toku
• Crowder SKU: TK-Y10212060
• Listed on breakdowns for: THH 1 2 3 4 Chipping Hammer, THA 1 2 3 4 Chipping Hammer