Description
Overview:
This Chain Sprocket Rim is a non-genuine replacement for Husqvarna chainsaws that use a 0.325" (8.3 mm) pitch chain and a 7-tooth drive. Built from robust steel, it sits on the clutch drum to transfer power smoothly from the engine to the chain, helping maintain consistent cutting performance. It is engineered to replace OEM part number 503873072 and suits popular saws such as the Husqvarna 345 and 350, among others. The rim design offers accurate chain engagement and steady chain speed under load, making it a practical choice for regular maintenance. Suitable for a wide range of Husqvarna models and selected Jonsered and McCulloch equivalents, it supports reliable operation for both professional and DIY users.
Key Features:
- 0.325" (8.3 mm) pitch, 7-tooth rim for correct chain engagement and smooth drive
- Non-genuine replacement compatible with OEM 503873072 for cost-effective maintenance
- Strong steel construction for long service life in demanding cutting conditions
- Rim-type design allows quick swaps without changing the complete clutch drum (where fitted)
- Promotes efficient power transfer and consistent chain speed
- Compatible with a wide range of Husqvarna, Jonsered and McCulloch models (see list)
- Easy to install for reduced downtime when servicing the saw
- Helps minimise wear on the chain by maintaining proper alignment and pitch match
Typical Applications:
Used during routine servicing of mid-size chainsaws for forestry, tree surgery, landscaping, grounds maintenance and firewood cutting. Ideal for users who run 0.325" (8.3 mm) pitch chains and need a dependable drive rim to restore performance, reduce slippage and keep the chain running true on tasks from pruning to felling small to medium timber.
Also known as:
Chainsaw rim sprocket, chain drive rim, replaceable sprocket rim, 7T rim sprocket, chain drive ring, sprocket ring for clutch drum.
Fits Models:
2141, 2145, 2149, 2150, 340, 340 E, 340E, 345, 350, 351, 353, 445, 445 E, 445E, 450, 450 E, 450E, CS2141, CS2145, CS2147, CS2150, CS2152, CS2153, CS2245 S, CS2245S, CS2250 S, CS2250S, CS450
Alternate Part Numbers:
503873072, 5877
Product Specifications
| L&S Part No. | 350 007 |
|---|---|
| Unit of Sale | 1 |
| Applications | 2141, 2145, 2149, 2150, 340, 340 E, 340E, 345, 350, 351, 353, 445, 445 E, 445E, 450, 450 E, 450E, CS2141, CS2145, CS2147, CS2150, CS2152, CS2153, CS2245 S, CS2245S, CS2250 S, CS2250S, CS450 |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
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