26RM3 81E Chainsaw Saw Chain
Part Number 3689 005 0081
STIHL 3689 005 0081 — 26RM3 81E Saw Chain
Also known as: Rapid Micro 3 Saw Chain · 81-Drive Link Chain · STIHL RM3 Chain
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Specifications
| Specification |
Detail |
| Part Number |
3689 005 0081 |
| Brand |
STIHL |
| Chain Model |
26RM3 81E |
| Chain Type |
Rapid Micro 3 (RM3) |
| Drive Links |
81 |
| Pitch |
3/8" (0.375") |
| Gauge |
0.063" (1.6mm) |
| Application |
Chainsaw — Professional & Homeowner Use |
| OEM / Aftermarket |
Genuine OEM STIHL |
The STIHL 26RM3 81E, part number 3689 005 0081, is a genuine OEM Rapid Micro 3 saw chain designed for use on STIHL chainsaws requiring a 3/8" pitch, 0.063" gauge chain with 81 drive links. Also referred to as a Rapid Micro chain, RM3 chain, or 81-link chainsaw chain, this replacement chain is engineered for smooth, efficient cutting in hardwood, softwood, and general-purpose applications. It is a direct OEM replacement compatible with a range of mid- to full-size STIHL chainsaw models and is built to STIHL factory specifications for consistent, reliable cutting performance.
Key Features▼
3/8" Pitch, 0.063" Gauge — OEM Spec Chain
The STIHL 26RM3 81E chain (part 3689 005 0081) features a 3/8" pitch and 0.063" gauge, matching factory specifications for compatible STIHL models. These measurements ensure proper bar and sprocket engagement for safe, efficient cutting.
STIHL Rapid Micro 3 Chain for Hardwood and Softwood Cutting
The Rapid Micro 3 (RM3) cutter design delivers fast, smooth cuts through both hardwood and softwood. The micro-profile cutters reduce kickback tendency and are well suited for felling, limbing, and bucking applications.
Genuine OEM STIHL Part — Cross Reference 3689 005 0081
This is a genuine STIHL OEM chain, not an aftermarket imitation. Sold under part number 3689 005 0081, it is a direct replacement for worn or damaged chains and meets all original equipment manufacturer tolerances and quality standards.
81 Drive Link Chain Compatible with Mid- to Full-Size STIHL Saws
With 81 drive links, the 26RM3 81E is sized for mid- to full-size STIHL chainsaws. It fits bars in the 20" range commonly used on models such as the MS 391, MS 362, and similar platforms requiring this chain specification.
Compatible Equipment▼
The STIHL 26RM3 81E saw chain, part number 3689 005 0081, is compatible with STIHL chainsaw models that require a 3/8" pitch, 0.063" gauge, 81 drive link chain. Compatible STIHL models with part 3689 005 0081 include the MS 362, MS 391, MS 362 C-M, MS 400, MS 400 C-M, and other STIHL saws specifying the 26RM3 81E chain configuration.
- STIHL MS 362
- STIHL MS 362 C-M
- STIHL MS 391
- STIHL MS 400
- STIHL MS 400 C-M
- Other STIHL models specifying 3/8" pitch, 0.063" gauge, 81 drive links
Always verify your chainsaw's bar length, pitch, gauge, and drive link count before ordering. Refer to your STIHL operator's manual or the bar markings for confirmation.
Common Questions▼
Q: What does STIHL part number 3689 005 0081 fit?
A: STIHL part 3689 005 0081 is the 26RM3 81E saw chain. It fits STIHL chainsaw models that require a 3/8" pitch, 0.063" gauge chain with 81 drive links, including the MS 362, MS 391, and MS 400 series. Always confirm your bar and sprocket specifications before installing.
Q: What is the pitch and gauge of the STIHL 26RM3 81E chain?
A: The STIHL 26RM3 81E (part 3689 005 0081) has a 3/8" pitch and 0.063" (1.6mm) gauge with 81 drive links. These specifications must match your guide bar and sprocket for safe and proper operation.
Q: Is the 26RM3 81E a genuine OEM STIHL chain or aftermarket?
A: Yes, the 26RM3 81E sold under part number 3689 005 0081 is a genuine OEM STIHL Rapid Micro 3 saw chain, manufactured to STIHL factory standards. It is not an aftermarket or third-party chain.
Q: What bar length does the STIHL 26RM3 81E chain fit on the MS 391?
A: The STIHL 26RM3 81E chain with 81 drive links is typically used on a 20" guide bar on the STIHL MS 391 and similar models. Always cross-reference your specific bar length and drive link count as listed in your STIHL operator's manual to ensure proper fitment.
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