Product Description
Knobtown Cycle offers the MUC-OFF USA MUC-OFF EXHAUST BUNG for riders who know quality matters.
Key Features
- 2 and 4-stroke compatible thanks to removable 4-stroke bung sleeve
- Tapered design fits most exhaust diameters
- Silicone rubber core construction is sturdy and durable
- Supplied with lanyard for easy removal and storage
- Prevents water or contaminates entering the exhaust during cleaning
- Directions for use: 1. Ensure the exhaust is fully cooled, 2. For 2-stroke exhaust remove the black silicone sleeve from the bung, for 4-stroke exhaust keep the black silicone sleeve on the bung, 3. Insert and twist the exhaust bung into the end of the exhaust to form a perfect, 4. Carry out your cleaning and maintenance routine and 5. Always remove before starting the engine
Product Specifications
- Part Number: 38500575
- Brand: MUC-OFF USA
- Weight: 0.25 lbs
- UPC: 5037835213065
Available at Knobtown Cycle
Shop online or visit our Kansas City showroom. Fast shipping available on all orders! Free Ship to Store!
Part Locations
| Location |
Available |
| Wisconsin (WI) |
20+ |
| New York (NY) |
20+ |
| Texas (TX) |
8 |
| Nevada (NV) |
20+ |
| North Carolina (NC) |
11 |
| National Total |
20+ |
Stock levels last updated: January 30, 2026 8:09 PM
Professional Installation Available
Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.
Thank you for Shopping at Knobtown Cycle!
When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.
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