Makita KNOB COMP BUC121/122 - 158472-4
Genuine Makita replacement knob 158472-4 (listed as "KNOB 60 COMPLETE") — a direct-fit chain/adjustment knob designed for Makita compact cordless chainsaws. This molded knob (the part is identified by Makita as "Knob 60", indicating the 60 mm style knob used on the sprocket/chain cover) restores proper chain tension and cover retention so the saw operates safely and as intended.
The 158472-4 is the same chain-tensioner/adjustment knob used on several Makita 115 mm cordless chain saws — for example DUC122, BUC122 and BUC121 — making it a straightforward swap when the original knob is cracked, stripped, or missing.
Compact, original Makita construction means you’re buying a part intended to match fit, finish and function from the factory; if you need a single replacement to get your saw back to work this part is compatible with the common small Makita chain-saw assemblies and is one of the handy parts for power tools to keep for maintenance.
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Compatible models this part will fit:
