---
type: lookup
id: 0-063-3-8-18-ms661
asset: stihl-chainsaw-chain-and-bar-specs
title: "MS661 — Stihl chainsaw chain and bar specifications by model"
sources:
  - https://www.lawnequipmentsuperstore.com/stihl-chainsaw-bar-chain-quick-guide
source_quote: "0.063\" | 115 | 36\" | 36RS3 115 | <https://www.alldadelawnmowers.com/search.asp?keyword=3626-005-0115> 3626-005-0115 | 75LGX115 | 75LPX115 | | <https://www.alldadelawnmowers.com/search.asp?keyword=3003-000-6053> 3003 000 6053 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//363RNDD025//1/y> 363RNDD025 | MS661 | 3/8\" | 0.050\" | 60 | 16\" | 33RS3 60 | <https://www.alldadelawnmowers.com/search.asp?keyword=3624-005-0060> 3624-005-0060 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//72LGX060G//1/y> 72LGX060G | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//72LPX060G//1/y> 72LPX060G | | <https://www.alldadelawnmowers.com/search.asp?keyword=3003-000-8813> 3003 000 8813 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//160RNDD025//1/y> 160RNDD025 | 3/8\" | 0.063\" | 60 | 16\" | 36RS3 60 | <https://www.alldadelawnmowers.com/search.asp?keyword=3626-005-0060> 3626-005-0060 | 75LGX060 | 75LPX060 | | 3003 000 9413 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//163RNDD025//1/y> 163RNDD025 | 3/8\" | 0.050\" | 66 | 18\" |"
generated: true
harvested: 2026-08-05
stale_after: 2028-08-04
model: "MS661"
bar_length: "18\""
pitch: "3/8\""
gauge: "0.063\""
drive_links: "66"
stihl_chain_part: "3626-005-0066"
verified: true
unverified_fields: stihl_chain_part
---
**Model:** MS661

**Bar length:** 18"

**Pitch:** 3/8"

**Gauge:** 0.063"

**Drive links:** 66

**STIHL chain part number:** 3626-005-0066

> 0.063" | 115 | 36" | 36RS3 115 | <https://www.alldadelawnmowers.com/search.asp?keyword=3626-005-0115> 3626-005-0115 | 75LGX115 | 75LPX115 | | <https://www.alldadelawnmowers.com/search.asp?keyword=3003-000-6053> 3003 000 6053 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//363RNDD025//1/y> 363RNDD025 | MS661 | 3/8" | 0.050" | 60 | 16" | 33RS3 60 | <https://www.alldadelawnmowers.com/search.asp?keyword=3624-005-0060> 3624-005-0060 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//72LGX060G//1/y> 72LGX060G | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//72LPX060G//1/y> 72LPX060G | | <https://www.alldadelawnmowers.com/search.asp?keyword=3003-000-8813> 3003 000 8813 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//160RNDD025//1/y> 160RNDD025 | 3/8" | 0.063" | 60 | 16" | 36RS3 60 | <https://www.alldadelawnmowers.com/search.asp?keyword=3626-005-0060> 3626-005-0060 | 75LGX060 | 75LPX060 | | 3003 000 9413 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//163RNDD025//1/y> 163RNDD025 | 3/8" | 0.050" | 66 | 18" |

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