# MS270 — Stihl chainsaw chain and bar specifications by model

For MS270, bar length is 18"; pitch is .325"; gauge is 0.063"; drive links is 74; stihl chain part number is 3689-005-0074, recorded from its source on 2026-08-05.

- **Model:** MS270
- **Bar length:** 18"
- **Pitch:** .325"
- **Gauge:** 0.063"
- **Drive links:** 74
- **STIHL chain part number:** 3689-005-0074 _(unconfirmed — we could not tie this to the quote below)_

## What the source says

> 0.063" | 81 | 20' | 26RM3 81 | <https://www.alldadelawnmowers.com/search.asp?keyword=3689-005-0081> 3689-005-0081 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//22BPX081G//1/y> 22BPX081G | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//22LPX081G//1/y> 22LPX081G | | <https://www.alldadelawnmowers.com/search.asp?keyword=3003-008-6821> 3003 008 6821 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//203VXLGD025//1/y> 203VXLGD025 | MS270 | .325" | 0.050" | 67 | 16" | 23RM3 67 | <https://www.alldadelawnmowers.com/search.asp?keyword=3695-005-0067> 3695-005-0067 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//20BPX067G//1/y> 20BPX067G | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//20LPX067G//1/y> 20LPX067G | | <https://www.alldadelawnmowers.com/search.asp?keyword=3003-008-6613> 3003 008 6613 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//160VXLGD025//1/y> 160VXLGD025 | .325" | 0.063" | 67 | 16" | 26RM3 67 | <https://www.alldadelawnmowers.com/search.asp?keyword=3689-005-0067> 3689-005-0067 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//22BPX067G//1/y> 22BPX067G | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//22LPX067G//1/y> 22LPX067G | | <https://www.alldadelawnmowers.com/search.asp?keyword=3003-008-6813> 3003 008 6813 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//163VXLGD025//1/y> 163VXLGD025 | .325" | 0.050" | 74 | 18" |

## Source

- https://www.lawnequipmentsuperstore.com/stihl-chainsaw-bar-chain-quick-guide

Last verified: 2026-08-05. Review by: 2028-08-04.
Part of [Stihl chainsaw chain and bar specifications by model](https://referencesource.org/stihl-chainsaw-chain-and-bar-specs/).