Stihl Muffler 4137 140 0603

STIHL Muffler / Exhaust Assembly – Genuine OEM Replacement

Fits STIHL FS75, FS80, FS85, HL75, HT70, KM85 & More

Restore engine performance and proper exhaust flow with this genuine STIHL muffler / exhaust assembly. Designed for a wide range of STIHL trimmers, brushcutters, Kombi engines, pole pruners, and edgers, this OEM exhaust ensures efficient combustion, reduced noise, and reliable operation in demanding outdoor conditions.

🔧 Product Overview

This STIHL exhaust muffler is a critical engine component that regulates exhaust gases, engine back pressure, and noise levels, helping your machine run smoothly and efficiently. Manufactured to STIHL’s exact standards, it provides a direct OEM fit, ensuring hassle-free installation and long service life.

Built from high-quality, heat-resistant metal, this muffler is engineered to withstand extreme temperatures, vibration, and heavy-duty professional use. It is the ideal replacement for worn, clogged, or damaged exhaust systems.

✅ Key Features

• Genuine STIHL OEM Muffler – Guaranteed compatibility and performance
• Heavy-Duty Steel Construction – Built for high-temperature durability
• Optimized Exhaust Flow – Supports engine efficiency and power output
• Noise Reduction Design – Helps reduce engine noise during operation
• Direct Replacement Fit – Installs easily using existing mounting points
• Long Service Life – Designed for professional and frequent use
• Restores Engine Performance – Ideal for worn or damaged exhaust systems

⚙️ Compatibility

This STIHL muffler / exhaust assembly fits a wide range of models, including:

Brushcutters & Trimmers:

• STIHL FS75
• STIHL FS80 / FS80R
• STIHL FS85 / FS85R / FS85RX / FS85T

Edgers & Cut-Off Machines:

• STIHL FC75 / FC85
• STIHL PC70 / PC75

Hedge Trimmers & Long-Reach Tools:

• STIHL FH75
• STIHL HL75 / HL75K

Pole Pruners:

• STIHL HT70 / HT70K / HT75

Kombi Engines & Attachments:

• STIHL KM85 / KM85R
• STIHL KA85R
• STIHL KW85

Other Models:

• STIHL SP80 / SP80K / SP81 / SP85

(Always verify part number and compatibility before purchase.)

🛠️ Typical Applications

• Replacing clogged, rusted, or damaged mufflers
• Restoring engine performance and fuel efficiency
• Reducing excessive noise during operation
• Routine servicing and maintenance of STIHL equipment
• Professional landscaping, arborist, and grounds maintenance work

🔄 Also Known As

• STIHL exhaust
• Chainsaw / trimmer muffler
• Engine exhaust assembly
• STIHL silencer
• Exhaust housing

🌲 Why Choose Genuine STIHL Parts?

Using a genuine STIHL muffler ensures:

• Perfect OEM fit and finish
• Reliable performance under heavy workloads
• Proper exhaust flow and engine efficiency
• Longer lifespan compared to aftermarket alternatives

📦 Product Specifications

• Manufacturer: STIHL
• Part Type: Muffler / Exhaust Assembly
• Material: Heat-resistant steel
• Unit of Sale: 1
• Machine Type: Trimmers, Brushcutters, Kombi Engines, Pole Pruners, Edgers
• Fits Brand: STIHL

🚚 Built for Professional & Commercial Use

This STIHL exhaust muffler replacement is ideal for landscapers, contractors, arborists, and homeowners who demand dependable performance from their outdoor power equipment.