Stihl engine series 1122 · XL
064/066 · MS 660 · MS 650/640
Chains & bars that fit the 064/066 · MS 660 · MS 650/640
Pitch & gauge 3/8″ · .063″ · .404″ on long bars · recommended bar 20–36″ · bar mount 3003 / D025 · round file 7/32" (5.5 mm)
Chain & bar by length
| Bar | Drive links | Shop |
|---|---|---|
| 20″ | 72 DL | Chain → Bar · 3003 → |
| 22″ | 76 DL | Chain → Bar · 3003 → |
| 25″ | 84 DL | Chain → Bar · 3003 → |
| 28″ | 91 DL | Chain → Bar · 3003 → |
| 32″ | 105 DL | Chain → Bar · 3003 → |
| 36″ | 114 DL | Chain → Bar · 3003 → |
Drive-link counts come from STIHL's saw-chain catalog. Bar searches include mount 3003 / D025; still confirm the mount stamp, pitch, gauge and drive-link count on your installed bar before ordering.
Files, oil & sharpening
Suggested match: Oregon 72/73/75 EXL. Confirm the drive-link count for your exact bar length before ordering. These are equivalent aftermarket (Oregon) chains, not genuine STIHL chain — STIHL sells its own chain through its dealer network, and we're not affiliated with STIHL. New to fitment? See the bar-mount identification guide and chain & cutter guide.
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Reference service specs
Reference-only service facts. STIHL revised parts by serial number, market, and production revision; verify against the saw label, IPL, or dealer parts lookup before ordering.
| Spark plug | Bosch WSR 6 F · NGK BPMR 7 A |
| Fuel filter | 0000 350 3504 |
| Air filter | 0000 140 4402 HD2 |
| Starter rope | 4.5 mm · 39.5″ |
| Guide coverage | 064 · 066 · MS 650 · MS 660 |
| Source | 2019 STIHL Technical Reference Guide · sourced |
- Guide lists MS 650 at 84.9 cc and 066/MS 660 at 91.6 cc.
Models in this family (5)
| Model | Years | Market | Rarity | Notes |
|---|---|---|---|---|
| 064 AV 84.9 cc | 1986–97 | Global | Collectable | 84.9 cc big-bore |
| 066 91.6 cc | 1988–03 | Global | Very Common / iconic | 91.6 cc; era benchmark |
| MS 660 91.6 cc | 2004–14 | Global | Very Common | MS-era 066 |
| MS 650 84.9 cc | 2005–12 | EU/AU | Uncommon (US) | Slightly smaller; not US-sold |
| MS 640 84.9 cc | 2003–10 | EU/AU | Uncommon | EU large pro below 660 |
Data confidence
Provenance for this family's figures — verify anything tagged estimated, approx, or stale-risk against STIHL spec sheets.
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