Overview
Ships as a 2-piece set, this chain is a direct replacement for BAUER 64940 20V Cordless Chainsaw - 3/8” .043” 40 Drive Links models. Chains wear down over time from regular use, and a fresh chain cuts faster and safer than a dull one.
Key specifications
- Bar length: 10”
- Pitch: 3/8”
- Gauge: .043”
- Drive links: 40
- Quantity: 2 chains per pack
Compatibility
This replacement chain works with BAUER 64940 20V Cordless Chainsaw - 3/8” .043” 40 Drive Links. Verify your specific model number and existing chain dimensions before purchasing.
Installation notes
Turn off the chainsaw and remove its power source before servicing. Unscrew the bar cover, back off the tensioner, and pull the old chain free. Route the fresh chain around the clutch drum and into the bar groove, making sure the drive links seat properly. Tighten the tensioner until the chain snaps snugly against the underside of the bar but still slides freely, then run the saw briefly at idle to confirm smooth tracking.
Common questions
Q: Will this 10” replacement chain fit my BAUER 64940 20V cordless chainsaw, or do I need to match anything besides bar length?
Yes, this chain is set up for the BAUER 64940 and matches the key specs: 10” bar, 3/8” pitch, .043” gauge, and 40 drive links. As long as your saw is still using the original 10” bar with those same specifications, it should fit correctly.
Q: I have a 10-inch bar, but my old chain is worn and the numbers are hard to read. How can I confirm this is the right replacement chain?
Count the drive links on the old chain and confirm there are 40, then verify the chain gauge is .043” and the pitch is 3/8”. A 10” bar alone is not enough to guarantee fit, so matching all three specs is the best way to avoid tensioning or tracking issues.
Q: Any tips for installing and maintaining these replacement chains on the BAUER 64940?
When installing, make sure the cutting teeth on the top of the bar face forward, then set the chain tension so it sits snugly but can still be pulled around by hand with gloves. Check tension again after the first few cuts, keep the chain properly oiled, and touch up the cutters regularly so the saw cuts smoothly without overloading the motor.
