# MS390 — Stihl chainsaw chain and bar specifications by model

For MS390, bar length is 30"; pitch is 3/8"; gauge is 1.6mm; drive links is 98; stihl chain part number is 3621/98, verified against its source on 2026-08-04.

- **Model:** MS390
- **Bar length:** 30"
- **Pitch:** 3/8"
- **Gauge:** 1.6mm
- **Drive links:** 98
- **STIHL chain part number:** 3621/98

## What the source says

> 029,031,032,034,036,038 039,041,042,044,045,046 048,056,064,066,E15 E20,E220,MS290,MS310 MS311,MS340,MS341,MS360 MS361,MS362,MS390,MS391 MS440,MS441,MS460, MS640, MS650,MS660 | 16" 18" 20" 25" 30" 36" | 3/8" 3/8" 3/8" 3/8" 3/8" 3/8" | 1.6mm 1.6mm 1.6mm 1.6mm 1.6mm 1.6mm | 60 66 72 84 98 114 | <https://www.lsengineers.co.uk/catalog/product/view/id/32566> 3621/60 <https://www.lsengineers.co.uk/catalog/product/view/id/32568> 3621/66 <https://www.lsengineers.co.uk/catalog/product/view/id/32573> 3621/72 <https://www.lsengineers.co.uk/catalog/product/view/id/32579> 3621/84 <https://www.lsengineers.co.uk/catalog/product/view/id/32585> 3621/98 <https://www.lsengineers.co.uk/catalog/product/view/id/32587> 3621/114

## Source

- https://www.lsengineers.co.uk/advice-centre/stihl-chain-selector

Last verified: 2026-08-04. Review by: 2028-08-03.
Part of [Stihl chainsaw chain and bar specifications by model](https://referencesource.org/small-engine-parts/).