Description
Overview:
This Chain Tensioning Screw is a genuine Husqvarna part designed to set and hold correct chain tension on compatible petrol and battery chainsaws. Built from durable steel with a corrosion‐resistant finish, it forms the core of the side chain adjuster mechanism, helping to keep the chain running true and reducing wear on the bar and sprocket. It is a direct replacement for OEM No. 537 39 70 01 (MPN: 537397001) and is a precise fit for the Husqvarna 435, as well as a wide range of other models. Suitable for both trade and DIY users, it helps maintain safe operation, consistent cutting performance, and easier routine maintenance when the chain stretches during use.
Key Features:
- Genuine Husqvarna part for assured fit and function on listed models
- OEM reference: 537 39 70 01; Manufacturer Part Number: 537397001
- Robust steel construction for long service life in tough cutting conditions
- Corrosion‐resistant finish to help protect against moisture and resin
- Precise thread and drive profile for smooth, accurate chain adjustment
- Maintains optimal chain tension to improve cut quality and reduce kickback risk
- Straightforward replacement; fits existing adjuster assembly without modification
- Supports regular maintenance by making tension checks and adjustments easier
Typical Applications:
Used to adjust and maintain chain tension during routine servicing and before cutting. Ideal when the original screw is worn, stripped, corroded, or lost. Helps keep the chain snug on the guide bar for felling, logging, pruning, and firewood work, whether on site, in the workshop, or in the garden. Suitable for professional arborists, landscapers, and homeowners maintaining Husqvarna chainsaws listed below.
Also known as:
Chain adjuster screw, bar adjuster screw, chain tensioner screw, chain adjustment screw, tension adjuster screw, side adjuster screw.
Fits Models:
135, 225i, 240i, 330i, 338XPT, 339XP, 340i, 435, 435E, 435EII, 435II, 435i, 436Li, 440EII, 440II, 445, 445EII, 445II, 450, 450EII, 455 Rancher II, 535i XP, 536Li XP, 540XP Mark III, 540i XP, 540i XP G, 540iXP, 540iXPG, 542i XP, 542i XP G, 542iXP, 542iXPG, T535i XP, T536Li XP, T540 XP Mark III, T540XP, T540XPII, T540i XP, T540i XP G, T540iXP, T540iXPG, T542i XP, T542i XP G, T542iXP, T542iXPG
Product Specifications
| L&S Part No. | 537 39 70 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 537397001 |
| Unit of Sale | 1 |
| Applications | 135, 225i, 240i, 330i, 338XPT, 339XP, 340i, 435, 435E, 435EII, 435II, 435i, 436LI, 440EII, 440II, 445, 445EII, 445II, 450, 450EII, 455 Rancher II, 455 RancherII, 535i XP, 535iXP, 536Li XP, 536LiXP, 540XP Mark III, 540i XP, 540i XP G, 540iXP, 540iXPG, 542i XP, 542i XP G, 542iXP, 542iXPG, T535i XP, T535iXP, T536Li XP, T536LiXP, T540 XP Mark III, T540XP, T540XPII, T540XPMarkIII, T540i XP, T540i XP G, T540iXP, T540iXPG, T542i XP, T542i XP G, T542iXP, T542iXPG |
| Machine Type | Chainsaws |
| Fits Models | 135 | 338XPT | 339XP | 435 | 435E | 435EII | 435II | 436LI | 440EII | 440II | 445 | 445EII | 445II | 450 | 450EII | 455 RANCHER II | 536LIXP | T540XP | T540XPII | 225i | 240i | 340i | 535i XP | T535i XP | T540i XP | 540i XP | T542i XP | 542i XP | 435i | 330i | 436Li | 536Li XP | 540i XP G | 542i XP G | T536Li XP | T540i XP G | T542i XP G | T540 XP Mark III | 540XP Mark III |
