Description
Overview:
This genuine Stihl insulator is a direct replacement for the intake insulator on compact professional chainsaws, including the MS 150 C and MS 150 TC. It is designed to thermally and mechanically isolate the carburettor from the engine, helping to reduce heat soak and vibration while maintaining an air‐tight seal for reliable running. Made from durable, fuel‐ and heat‐resistant polymer, it supports smooth idling, clean acceleration, and consistent performance under everyday use. Supplied as an OEM part, it matches the original dimensions and port alignment for correct fitment and sealing. Identified by OEM No. 1146 405 8000 (MPN 11464058000), it is suitable for routine maintenance or repair when addressing air leaks, cracked intake components, or unstable engine behaviour. Genuine Stihl part for assured compatibility and service life.
Key Features:
- Genuine Stihl part for OE fit and compatibility
- Direct replacement for OEM No. 1146 405 8000 (MPN 11464058000)
- Helps reduce engine vibration transmitted to the carburettor
- Acts as a thermal barrier to limit heat transfer and fuel vaporisation
- Fuel‐ and oil‐resistant polymer for long service life
- Maintains an air‐tight intake path to support easy starting and stable idle
- Correct port alignment for reliable airflow and engine performance
- Straightforward installation with standard hand tools, minimising downtime
- Suitable for preventative maintenance during carburettor or intake system service
- Compatible with selected MS 150 and MS 151 series models
Typical Applications:
Used when servicing the intake system on lightweight arborist and pruning chainsaws. Commonly fitted to cure air leaks, erratic idle, poor acceleration, or visible damage to the intake insulator. Suitable for professional tree work, grounds maintenance, landscaping, and domestic saw upkeep where consistent performance and reliable sealing are required.
Also known as:
Intake insulator, carburettor insulator, intake spacer, insulator block, manifold insulator, carb spacer, intake adaptor, intake isolator.
Fits Models:
MS 150 C, MS 150 TC, MS 151 C, MS 151 TC, MS150C, MS150T C, MS150TC, MS151C, MS151TC
Alternate Part Numbers:
1146-405-8000, 11464058000
Product Specifications
| L&S Part No. | 1146 405 8000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11464058000 |
| Unit of Sale | 1 |
| Applications | MS 150 C, MS 150 TC, MS 151 C, MS 151 TC, MS150C, MS150T C, MS150TC, MS151C, MS151TC |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS150T C | MS150C | MS151C, MS151TC |
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