Makita *PUMP DRIVE DCS640/790 PS64/79 - 038245030
Genuine Makita Pump Drive — part number 038245030. Listed in Makita parts breakdowns as the "PUMP DRIVE," this is the small machined drive that engages the chainsaw’s oil-pump assembly and transfers rotation from the drive/clutch area to the bar lubrication system.
Fits (examples from Makita parts diagrams): DCS6401 and DCS6400; DCS7300 and DCS7301; EA7900/EA7901 / DCS7900 and DCS7901.
Why this part matters: replacing the pump drive restores positive, reliable oil delivery to the bar and chain — essential to prevent rapid chain/bar wear and poor cutting performance. This is the genuine Makita pump-drive component specified in the official parts diagrams for the models above.
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Compatible models this part will fit:
