Chainsaw Bar Fit

STIHL MSA 70 C-B replacement chain and bar size

Verified factory configuration for the AK System model/configuration.

Factory configuration

Bar length
12 in
Pitch
1/4 STIHL PICCO
Gauge
0.043 in
Drive links
64
OEM chain
71 PM3 64
OEM bar
3005 008 3405

Configuration and revision caveat

Manufacturer-recommended 12-inch configuration; effective cutting length may vary; verify installed bar

Replacement chain check for the STIHL MSA 70 C-B

Start with the factory configuration above: 12 in bar, 1/4 STIHL PICCO pitch, 0.043 gauge, and 64 drive links. The cited OEM chain part is 71 PM3 64. This applies only to the cited configuration; Manufacturer-recommended 12-inch configuration; effective cutting length may vary; verify installed bar

  1. Remove the battery and read the installed guide-bar stamp.
  2. Match pitch, gauge, and drive-link count to this page.
  3. If the bar has been replaced or its stamp differs, stop and use the installed-bar specifications instead.

How we verified this

Opened 2025 catalog; printed page 167/PDF page 85, STIHL battery-powered models table

Open manufacturer source (manufacturer catalog; checked 2026-08-12).

See models with this exact pitch, gauge and drive-link signature

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