Description
Overview:
The Piston Assy for Stihl TS410 and TS420 disc cutters is a high‐quality non‐genuine replacement designed to restore compression and power in your cut‐off saw. Built from hard‐wearing aluminium alloy for the piston body, with steel components used where appropriate, it is made to withstand high temperatures, high RPM, and dusty jobsite conditions. It is engineered to match OEM fit and clearances for a reliable seal in the cylinder, helping reduce blow‐by and oil consumption while supporting smooth starting and steady running. Suitable for Stihl TS410 and TS420 machines, this assembly is ideal for routine engine refreshes or repairing a damaged top end. It replaces Stihl reference 4238 030 2003 for a dependable, cost‐effective maintenance solution.
Key Features:
- Non‐genuine replacement compatible with OEM specification for the TS410/TS420
- Durable aluminium alloy piston for strength, heat dissipation, and low mass
- Helps restore compression, throttle response, and cutting performance
- Consistent fit for reliable sealing with the cylinder and rings
- Made for demanding conditions common in masonry and road‐cutting use
- Smooth running to support lower vibration and reduced wear on related parts
- Suitable for quick turnaround maintenance and top‐end refreshes
- Often used during scheduled rebuilds to extend machine service life
- Designed for straightforward installation with standard workshop tools
- Supports correct combustion efficiency for cleaner running and fuel economy
Typical Applications:
Used during engine repairs or rebuilds of Stihl TS410/TS420 cut‐off saws to replace worn or damaged pistons. Common in construction, landscaping, utilities, and hire fleets where saws cut concrete, stone, asphalt, and masonry. Ideal when fixing loss of power, hard starting, poor idle, or excessive smoke caused by piston and ring wear.
Also known as:
Piston kit, piston and ring set, cutter piston, engine piston, top‐end rebuild piston, piston assembly for cut‐off saws, gudgeon pin piston set.
Fits Models:
TS 410, TS 420, TS410, TS420
Alternate Part Numbers:
4238 030 2003, 42380302003, E6317
Product Specifications
| L&S Part No. | 410 240 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Applications | TS 410, TS 420, TS410, TS420 |
| Machine Type | Disc Cutters |
| Fits Brands | Stihl |
| Fits Models | TS410, TS420 |
