Description
Overview:
The Muffler/Exhaust Gasket for Stihl HS72 and HS74 is a genuine Stihl sealing component used between the cylinder exhaust port and the muffler. Made from heat-resistant gasket material, it provides a reliable gas-tight seal to prevent exhaust leaks, maintain smooth running, and protect the engine from hot gas blow-by. It is suitable for Stihl handheld machines in this series, including hedge trimmers and compatible models. As a genuine part (MPN: 4227 149 0606), it is cut to the correct profile for the mating faces and withstands high temperatures, vibration, and pressure pulses in normal use. Use this gasket whenever the muffler is removed or replaced to ensure dependable sealing and to help preserve performance, emissions control, and noise levels.
Key Features:
- Genuine Stihl part for assured compatibility and reliability (MPN: 4227 149 0606)
- Heat-resistant material maintains a durable seal under high temperatures and exhaust pressure
- Helps prevent exhaust leaks, power loss, and carbon build-up around the port
- Supports correct engine performance and back pressure for consistent running
- Resilient against vibration and thermal cycling in demanding use
- Precisely cut profile for correct alignment with factory mating surfaces
- Suitable to replace worn, crushed, or damaged gaskets during service work
- Straightforward installation with basic hand tools as part of routine maintenance
- OEM quality gives confidence in fit and long-term sealing
- Ideal when refitting the muffler after cleaning or carbon removal
Typical Applications:
Used during exhaust system maintenance on compatible Stihl machines to restore a proper seal after removing the muffler, replacing a noisy or "blowing" gasket, or performing decarbonising. Helps maintain engine efficiency, reduce fumes and noise leakage, and protect surrounding components from heat. Recommended whenever the muffler is loosened or replaced to ensure a reliable, long-lasting seal.
Also known as:
Muffler gasket, exhaust gasket, silencer gasket, exhaust port gasket, muffler seal, exhaust seal. These terms refer to the same sealing part used between the cylinder exhaust outlet and the muffler body on compatible Stihl machines.
Fits Models:
BG72
HS72
HS74
HS76
Alternate Part Numbers:
4227-149-0606, 42271490606
Product Specifications
| L&S Part No. | 4227 149 0606 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42271490606 |
| Unit of Sale | 1 |
| Applications | BG72, HS72, HS74, HS76 |
| Machine Type | Hedgetrimmers, Blower/Shredders |
| Fits Brands | Stihl |
| Fits Models | HS72, HS74, HS76 | BG72 |
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