Keeps Water Out
During washing, preventing water from entering the muffler is an important step in maintaining an exhaust system. This Yoshimura Muffler Wash Plug is made for that job, helping protect the muffler while the vehicle is being cleaned.
Yoshimura
The Yoshimura Muffler Wash Plug is a replacement service part designed to help keep water out of the muffler while washing a vehicle. By blocking water intrusion during cleaning, it supports the care and longevity of the muffler and exhaust system.
It’s the right choice when the original plug is missing or worn and a proper wash-day seal is needed again.
During washing, preventing water from entering the muffler is an important step in maintaining an exhaust system. This Yoshimura Muffler Wash Plug is made for that job, helping protect the muffler while the vehicle is being cleaned.
Built as part of Yoshimura’s Replacement Service Parts line, this Muffler Wash Plug is intended to replace an existing Yoshimura wash plug. It’s a practical solution for restoring the wash plug function when the original has been lost or needs replacement.
This wash plug is specified for many models across multiple manufacturers, including a long list of GasGas, Honda, Husqvarna, Kawasaki, KTM, Suzuki, and Yamaha applications. Confirm the exact make, model, and model year using the fitment table on the page.

Installation
Yoshimura positions the Muffler Wash Plug as a simple but important part of regular vehicle care. When a bike or ATV is cleaned after a ride, water control around the exhaust is part of protecting the muffler and exhaust system. Installing the plug before washing helps block water from entering the muffler, supporting long-term upkeep through everyday maintenance habits.

Fitment
This replacement wash plug is listed across a wide variety of models and years. Because fitment varies by application, the fitment table on the page should be used to confirm the exact match for the vehicle. The product is also noted by Yoshimura as being included with most Off-Road, ATV, and UTV exhaust systems, making it a direct replacement option when the original included plug is no longer available.
| Part Number | 347PLUG |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Shipping Weight | 0.7 lb |
| Barcode | 00840025908659 |
| Make | Model | Model Years |
|---|---|---|
| GasGas | EX-250F | 2023 |
| GasGas | EX-350F | 2021, 2023 |
| GasGas | MC-250F | 2021–2023 |
| GasGas | MC-350F | 2022–2023 |
| GasGas | MC-450F | 2022–2023 |
| Honda | Africa-Twin | 2020–2023 |
| Honda | CRF230F | 2015–2017 |
| Honda | CRF250F | 2019–2024 |
| Honda | CRF250L | 2017–2020 |
| Honda | CRF250L-Rally | 2017–2020 |
| Honda | CRF250R | 2016–2022 |
| Honda | CRF250RX | 2019–2022 |
| Honda | CRF250X | 2016–2017 |
| Honda | CRF300L | 2021, 2023 |
| Honda | CRF300L-Rally | 2021, 2023 |
| Honda | CRF450L | 2019–2020 |
| Honda | CRF450L-International | 2019–2022 |
| Honda | CRF450R | 2019–2022 |
| Honda | CRF450R-S | 2022 |
| Honda | CRF450RL | 2021 |
| Honda | CRF450RX | 2017–2022 |
| Honda | CRF450X | 2016–2017, 2019–2024 |
| Honda | CRF450X-International | 2019 |
| Honda | CRF50F | 2018 |
| Honda | Pioneer-700 | 2014 |
| Honda | XR650L | 2015–2023 |
| Husqvarna | 701-ENDURO-SUPER-MOTO | 2019–2022 |
| Husqvarna | FC250 | 2019–2022 |
| Husqvarna | FC350 | 2019–2022 |
| Husqvarna | Norden-901 | 2022–2023 |
| Kawasaki | KLX140R-RL-RF | 2021, 2023 |
| Kawasaki | KLX230 | 2021 |
| Kawasaki | KLX300S-SM | 2021–2022 |
| Kawasaki | KX250F | 2021–2024 |
| Kawasaki | KX250X | 2021–2023 |
| KTM | 250EXC-F | 2018–2019 |
| KTM | 250SX-F | 2019–2022 |
| KTM | 250SX-F-FACTORY-EDITION | 2015 |
| KTM | 250XC-F | 2019–2020 |
| KTM | 350EXC-F | 2015, 2017–2019 |
| KTM | 350SX-F | 2017–2022 |
| KTM | 350XC-F | 2019–2020 |
| KTM | 450SX-F | 2016–2022 |
| KTM | 450SX-F-FACTORY-EDITION | 2018–2021 |
| KTM | 450XC-F | 2017–2022 |
| KTM | 890-ADVENTURE | 2021–2023 |
| Suzuki | RM-Z250 | 2016–2021 |
| Suzuki | RM-Z450 | 2016–2024 |
| Suzuki | RMX450Z | 2010 |
| Yamaha | Raptor-700-700R-700R-SE | 2012–2018 |
| Yamaha | Tenere-700 | 2021 |
| Yamaha | WR250F | 2015–2018, 2020–2021, 2023 |
| Yamaha | WR250R | 2019 |
| Yamaha | WR450F | 2016–2022 |
| Yamaha | YFZ450R | 2014–2016, 2020 |
| Yamaha | YZ250F | 2016–2021 |
| Yamaha | YZ250FX | 2020–2021 |
| Yamaha | YZ450F | 2016–2022 |
| Yamaha | YZ450FX | 2016–2017, 2019–2022 |
Fitment as listed by Yoshimura for part number 347PLUG.
