Description
Overview:
This Genuine Stihl Rapid Super (RS) saw chain is built for high-output professional chainsaws. It is a 59" (149 cm) loop with 173 drive links, made from high-strength, heat-treated steel for durability and consistent cutting. With a .404" (10.26 mm) pitch and .063" (1.6 mm) gauge, it is engineered for heavy-duty cutting and boring where fast, smooth performance is essential. The RS design delivers low vibration and clean cutting behaviour across large timber. Suitable for large Stihl models such as the MS 880 and 08 S, it is supplied as a ready-to-fit loop and identified by Manufacturer Part Number (MPN) 3946 003 0173. Use with matching .404"/.063" guide bars and drive sprockets for correct fit and safe operation.
Key Features:
- Genuine Stihl part for assured compatibility and reliability (MPN 3946 003 0173)
- Length: 59" (149 cm) loop with 173 drive links for large-displacement saws
- Pitch: .404" (10.26 mm); Gauge: .063" (1.6 mm) - matches .404/.063 bars and sprockets
- Rapid Super (RS) chain type for fast, smooth cutting with reduced chatter
- Low vibration design helps comfort and control on long cuts
- Heat-treated steel cutters and robust rivets for durability in demanding work
- Optimised for high cutting speed and strong boring performance
- Ready to fit as a closed loop; check bar markings for pitch, gauge, and drive link count
- Suitable for professional forestry, site clearance, and large-diameter timber work
Typical Applications:
Felling and bucking large timber, cross-cutting and sectioning hardwoods and softwoods, boring cuts for precision felling, stump reduction, and heavy logging tasks. Commonly used in forestry, arboriculture, sawmills, and construction site clearance where a robust .404" chain is required for high-power saws and long guide bars.
Also known as:
Stihl RS chain loop, Stihl Rapid Super chain, .404 x 1.6 mm chain loop (.404" x .063"), 173DL .404 chain, 59-inch/149-cm Stihl chain loop, Rapid Super RS .404 063, Stihl RS .404 chain for large saws.
Fits Models:
08 S, 084, 088, 08S, 090, 090 G, 090G, MS 880, MS880
Alternate Part Numbers:
3946 003 0173, 39460030173
Product Specifications
| L&S Part No. | 3946 003 0173 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 3946 003 0173 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - 59" loop with 173 drive links for large saws - .404" pitch and .063" gauge for heavy-duty cutting - Compatible with Stihl MS 880 and 08 S models - Low vibration design for comfort and control - Heat-treated steel for durability and consistent cutting |
| Fits Models | 08S | MS880 | 084 | 088 | 090, 090G |
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