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FREE GROUND SHIPPING ON ORDERS OVER $99
Orders over $99 will have free standard ground shipping within the contiguous United States (Alaska and Hawaii are excluded) and to Canada (remote areas excluded). Learn more
Exhaust Muffler for Excavators, 6684639 reduces the noise and vibrations created by the excavator's engine.
Improves fuel efficiency: Regulates exhaust flow, which can impact the engine's power output and overall efficiency.
Reduce emissions: Helps to remove harmful gases from the engine, ensuring that the vehicle complies with emission standards.
Protect from heat and chemicals: Made of steel and coated with aluminum to protect them from the heat and chemicals released from the exhaust system.
Parts can vary depending on your serial number. Use the Serial Number Parts Finder above or check the Bobcat Online Parts Catalog to ensure the correct part for your equipment.
WARNING:This product can expose you to chemicals including engine exhaust (including diesel engine exhaust when equipped), lead and lead compounds, mineral oils, soots, phthalates, and carbon monoxide which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Certain specification(s) are based on engineering calculations and are not actual measurements. Specification(s) are provided for comparison purposes only and are subject to change without notice. Specification(s) for your individual equipment will vary based on normal variations in design, manufacturing, operating conditions, and other factors.
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Refine results for your equipment. Add your serial number or model to shop products with a guaranteed fit.
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Refine results for your equipment. Add your serial number or model to shop products with a guaranteed fit.
Sign in
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create account
to save equipment for future use.
Check to see if your machine is eligible for more coverage by entering your serial number under Eligibility Check below.
What is covered?
Loaders
You have three options: 1) Full Protection – most comprehensive coverage 2) Powertrain + Hydraulics – powertrain plus hydraulic components only 3) Powertrain – engine and drive components only.
Excavators
You have three options: 1) Full Protection – most comprehensive coverage 2) Powertrain + Hydraulics – powertrain plus hydraulic components only 3) Powertrain – engine and drive components only.
Tractors
You have three options: 1) Full Protection – most comprehensive coverage 2) Powertrain + Hydraulics – powertrain plus hydraulic components only 3) Powertrain – engine and drive components only.
Toolcatâ„¢ Utility Work Machines
You have three options: 1) Full Protection – most comprehensive coverage 2) Powertrain + Hydraulics – powertrain plus hydraulic components only 3) Powertrain – engine and drive components only.
Telehandlers
You have three options: 1) Full Protection – most comprehensive coverage 2) Powertrain + Hydraulics – powertrain plus hydraulic components only 3) Powertrain – engine and drive components only.
Utility Vehicles (UTV)
For new Bobcat utility vehicles, Protection Plus offers full protection on engine and transmission components, plus HVAC, plus Main Frame, plus Electrical Components, PLUS more!
Zero-Turn Mowers (ZTR)
For new Bobcat zero-turn mowers, we offer a limited extended warranty.
Saved Equipment Guide
Keep your equipment information organized by saving your Bobcat models and serial numbers to make finding compatible products even easier.
How to Use ‘Saved Equipment’
Without signing in, you can save one machine by clicking ‘Add Equipment’ at the top of the page. Once you create an account or sign in, you can save and edit multiple models and serial numbers by clicking ‘Add Equipment’. Click on any of your saved machines and click ‘Apply’ to see the compatible products for your serial number. If you want to look at all products without any serial number applied, you can click on the green slider at the top of the page to view all products.
Where I Can Find My Saved Equipment
Your equipment information will always be at your fingertips every time you sign in. Your active machine will be visible at the top of the page by the search bar. Once you sign in, you will see all of your saved equipment. Click on your active equipment at the top of the page. A window opens showing all your saved equipment. Select the machine that needs new parts, accessories, or attachments, and click ‘Apply’.
Where's My Serial Number
The serial number location can vary by type of machine, series, year of manufacture and other factors. Use this guide to help locate your machine's serial number.
