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Dual Port Muffler Cover compatible with Stihl 064, 066, MS660

Stihl 064, 066, MS650, MS660 dual port muffler front cover
 
Our Price: $29.94
New Year Sale: $24.95
Part #: H90064

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Description Replaces the following OEM(s)
 

Hyway Dual Port Muffler Front Cover for Stihl 064, 066, MS650, MS660 Chainsaws

Boost your chainsaw’s performance with this Hyway Non-Genuine Dual Port Muffler Front Cover, designed as a high-quality aftermarket replacement for Stihl 064, 066, MS650, and MS660 chainsaws. This muffler cover replaces OEM part number 1122 140 0800 and includes a spark arrestor screen, gasket, and 2 screws for easy installation. Engineered to enhance exhaust flow, this dual port design delivers increased power output, making it ideal for professional logging, forestry, and heavy-duty cutting applications.

Crafted from heavy-gauge steel with a corrosion-resistant coating, this muffler cover ensures durability in demanding environments. The included spark arrestor screen meets safety requirements for wildfire-prone areas, while the gasket ensures a secure, leak-free fit. Designed for straightforward bolt-on installation, it converts a single-port muffler to a dual-port system for improved performance. Note: Verify your chainsaw’s model and serial number before purchasing to ensure compatibility. Some models may require slight widening of the front mount holes for proper alignment. Consult your chainsaw’s manual for proper installation instructions.

Key Features:

  • Hyway Non-Genuine Dual Port Muffler Front Cover for Stihl 064, 066, MS650, MS660
  • Enhanced Performance: Dual port design increases exhaust flow for more power
  • Complete Kit: Includes spark arrestor screen, gasket, and 2 mounting screws
  • Durable Construction: Heavy-gauge steel with corrosion-resistant coating
  • Replaces OEM Part: Compatible with Stihl OEM 1122 140 0800
  • Applications: Ideal for professional logging, forestry, and heavy-duty cutting
  • Easy Installation: Designed for straightforward bolt-on replacement

Compatibility:

Compatible Stihl Chainsaw Models:

  • Stihl 064
  • Stihl 066, 066 Arctic, 066 Magnum
  • Stihl MS650
  • Stihl MS660, MS660 Arctic, MS660 Magnum

Specifications:

  • Part Type: Non-Genuine Dual Port Muffler Front Cover
  • Replaces OEM: 1122 140 0800
  • Includes: Muffler front cover, spark arrestor screen, gasket, 2 mounting screws
  • Material: Heavy-gauge steel with corrosion-resistant coating
  • Applications: Professional chainsaws for logging and forestry
  • Note: May require slight widening of front mount holes for alignment on some models

Note: Verify your chainsaw’s model and serial number before purchasing. Consult your chainsaw’s manual for proper installation and maintenance instructions.

Maximize the power of your Stihl chainsaw with this Hyway Non-Genuine Dual Port Muffler Front Cover, available at an exceptional value from HL SUPPLY!

Fits models:
  • Stihl 064, 066, MS650, MS660

Average Customer Review: Average Customer Review: 4.5 of 5 4.5 of 5 Total Reviews: 8 Write a review.

  0 of 0 people found the following review helpful:
 
5 of 5 reveiw May 25, 2020
Reviewer: Wayne Dennis from Grove City , OH United States  
Quick and courteous, probably sent  correct part

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  0 of 0 people found the following review helpful:
 
5 of 5 Products supply September 23, 2019
Reviewer: George Valentine from Mount Compass, SA Australia  
fast shipping all well packed

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  0 of 0 people found the following review helpful:
 
3 of 5 Fit is off a bit September 23, 2019
Reviewer: Craig L, Po3 GMS Pros from Warrenton, VA United States  
I consider this part of average vice top quality - not on par with Stihl OEM - fit is off.  I was able to get it with a bit of effort and coercion - angle cover, partially install bottom two OEM screws first, followed by top two newly provided and slightly longer top screws, then snug all four.  Have not tried it yet, but looks good on the saw.

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  0 of 0 people found the following review helpful:
 
4 of 5 August 10, 2018
Reviewer: Timothy Boatright from Mascoutah, IL United States  


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  0 of 0 people found the following review helpful:
 
5 of 5 muffler July 23, 2018
Reviewer: Kent Hansen from Eagar, AZ United States  
good quality ,like the screen for national forest

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