Products Description
MS250 Chainsaw Wrench 13-19 – Multi‑Function Scrench for STIHL MS250
13mm x 19mm Combination Wrench & Screwdriver for STIHL MS250 & Compatible Saws
This 13-19 chainsaw wrench is a purpose‑built maintenance tool designed for STIHL MS250 and a wide range of compatible chainsaw models. The dual‑ended design features a 13mm socket for bar nuts and a 19mm socket for spark plug access, with an integrated flathead screwdriver for chain tensioning and carburetor adjustments . This 2‑in‑1 tool eliminates the need to carry multiple implements during field maintenance . Available in standard scrench style, T‑handle, or with added Torx driver capabilities, this wrench ensures you have the right tool for essential chainsaw servicing .
Technical Profiles & Materials
Dual 13mm & 19mm Socket Sizes – The 13mm socket fits the bar nuts that secure the guide bar and chain cover, while the 19mm socket matches the standard spark plug size on MS250 and many STIHL models . This allows quick removal and replacement of both components without switching tools.
Integrated Flathead Screwdriver – A built‑in flathead screwdriver enables chain tension adjustment and carburetor tuning, making field maintenance fast and efficient .
OEM Compatibility – Replaces STIHL OEM part numbers 1129 890 3401 and 1123 890 3400 . This design is compatible with STIHL 021, 023, 025, 026, MS210, MS230, MS250, MS260, MS290, and many other professional and homeowner saw models .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Socket Sizes | 13 mm & 19 mm (hex) |
| 2 | Screwdriver Type | Flathead (slotted) |
| 3 | Compatibility | STIHL 021, 023, 025, 026, MS210, MS230, MS250, MS260, MS270, MS290, MS360, MS440, MS460, and many others |
| 4 | Material | Forged carbon steel / stainless steel |
| 5 | Finish | Powder‑coated or high‑visibility orange coating |
| 6 | OEM Replacement | 1129 890 3401 / 1123 890 3400 |
| 7 | Included Components (Kits) | Wrench, bar nuts, spark plugs |
Products Application
Field Maintenance & Repairs
The combination wrench is essential for on‑site servicing of the MS250, allowing quick adjustment of chain tension via the guide bar nuts, spark plug inspection or replacement, and carburetor tuning using the built‑in screwdriver . This reduces downtime during felling and logging operations.
Chain & Bar Replacement
When replacing a worn chain or guide bar, the 13mm socket removes the bar nuts, while the 19mm socket can be used to check the spark plug for signs of wear or fouling . Kits often include spare bar nuts and spark plugs for complete maintenance .
Preventative Maintenance Kits
Many 13‑19 wrench kits include spare bar nuts and spark plugs, making them a convenient solution for routine servicing . This ensures the right replacement parts are on hand for regular maintenance checks and seasonal tune‑ups .
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FAQ
Q: What exactly is a 13‑19 chainsaw wrench?
A: It is a dedicated combination tool-often called a scrench-featuring a 13mm socket for bar nuts and a 19mm socket for spark plugs, plus a flathead screwdriver for chain tensioning and carburetor adjustments . It is the standard maintenance tool for STIHL MS250 and many compatible saws.
Q: How do I confirm this wrench fits my MS250?
A: Check your chainsaw model number on the housing. This wrench fits STIHL MS250, MS230, MS210, 023, 025, and numerous other models as listed above . For MS250, the bar nuts are 13mm and the spark plug is 19mm, matching this tool's specifications .
Q: What is included in a typical wrench kit?
A: Kits often include one 13‑19 combination wrench, 6 bar nuts, and 3 to 5 spark plugs, providing everything needed for standard maintenance .
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