This is compatible with both horizontal and vertical shaft Honda engines. However, fitment will vary on different applications, so it is best to review the application before installation.
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Catalytic Combustion Exhaust Honda Muffler Shoulder Mount

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Shipping:
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- Fits GX630/660/690
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Description
Key Specs
Reviews
Q & A
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Product Summary
What's Included
- (1) Muffler kit
Features + Benefits
- Fits GX630/660/690
Key Specs
| Attribute | Specification |
|---|---|
item# | 46977 |
Brand | Catalytic Combustion Exhaust |
| Attribute | Specification |
|---|---|
Ship Weight | 12.0 LB |
Product Weight | - |
Reviews
Questions & Answers
Questions
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· 5 years ago
Does this fit both vertical and horizontal 630?
1 answer-
ProductExpert7· 5 years ago
Helpful?
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· 5 years ago
Are the flange gaskets included?
1 answer-
ProductExpert7· 5 years ago
The flange gaskets would be included with the engine, not with the muffler.
Helpful?
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· 6 years ago
Will this fit a gx620 K1 and also is it available in right shoulder mount?
1 answer-
ProductExpert38· 6 years ago
This is available in left shoulder only, and fits GX models 630/660 and 690.
Helpful?
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· 7 years ago
right side exhaust, distance from flange face to outside of pipe at bend?
1 answer-
ProductExpert19· 7 years ago
The projection from the the exhaust port to the tube is 2.58".
Helpful?
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· 7 years ago
How far does the manifold on this muffler come back from the flanges(distance from exhaust ports to outside of pipe)?
1 answer-
ProductExpert5· 7 years ago
The total distance from the exhaust port to the outside of the pipe is 24-1/4 inches.
Helpful?
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Specifications
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Honda V-Twin Models GX630, GX660, and GX690
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Honda V-Twin Models GX630, GX660, and GX690
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Hi-Mount
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Left/Starter
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