STIHL 26 RS 81 Chainsaw Chain – 20" Bar, .325" Pitch, .063" Gauge, 81 Drive Links (3639 005 0081)
The STIHL 26 RS 81 is a high-performance OEM chainsaw chain built for maximum cutting speed and durability. Designed for 20" guide bars, this full-chisel chain is engineered for professionals who need aggressive cutting ability in hardwoods, softwoods, and even frozen timber.
Key Specifications:
- Pitch: .325"
- Gauge: .063" (1.6 mm)
- Drive Links: 81
- Bar Length Compatibility: 20"
- Cutter Type: Full-Chisel
- Chain Type: OILOMATIC® RAPID™ Super (RS)
- Part Number: 3639 005 0081 (26 RS 81)
Product Features:
- Exceptionally Fast Cutting: Full-chisel, square-corner cutters deliver an aggressive bite and rapid cutting speed for heavy-duty forestry tasks.
- Low-Vibration Engineering: Tie-strap and cutter geometry help reduce vibration at the saw, improving comfort and control during extended use.
- OILOMATIC® Lubrication: Integrated oil channels deliver consistent lubrication to reduce friction and extend chain and bar life.
- Durable, Pro-Grade Construction: Built from high-strength components designed to withstand intense heat, pressure, and demanding cutting environments.
- Optimized for Experienced Operators: Intended for high-powered saws and trained users who require maximum cutting output.
Safety Note: 26 RS is not a low-kickback chain. It is intended for trained, experienced operators using properly configured saws with full safety precautions.
The STIHL RS chain typically cuts faster than RM chain, but it requires precise sharpening and consistent maintenance to maintain top-tier performance.
Recommended Applications:
- Professional forestry work
- Felling and bucking large timber
- Limbing thick or frozen branches
- Cutting seasoned, clean, or frozen wood
Because of its aggressive cutting characteristics, STIHL recommends that only experienced operators use RS chains. Always pair with approved bars to minimize kickback risk.
Compatible STIHL Chainsaw Bars:
This chain is compatible with the following STIHL guide bar:
- 3003 812 6821 – 20" Farm Boss Bar, .325" Pitch, .063" Gauge, 81 Drive Links
Note: Always verify compatibility with your specific chainsaw model and bar.
Genuine STIHL OEM
Trust the performance and durability of genuine STIHL OEM products. Built to the same standards as your equipment, they help ensure optimal performance and long-lasting reliability.
Make Sure It Fits!
Double-check your equipment manual and model number to be sure this part is the right one. It only takes a minute and can save you the hassle of returns. Not sure? No problem! Reach out to us — we’re happy to help you find the right part.
