Yoshimura · RS-4
The Yoshimura SPARK ARRESTER KIT RS-4 Muffler, 1.375" (SA-08-K) is a replacement USFS Approved spark arrester designed for RS-4 off-road mufflers. Built as part of Yoshimura’s Replacement Service Parts line, this kit is intended to restore spark arrester function on compatible RS-4 setups.
It can also be used as an optional spark arrester on applications that were not originally equipped with one, when applicable. For application confirmation, refer to the insert chart shown on the page.
This kit provides a replacement USFS Approved spark arrester for Yoshimura RS-4 off-road mufflers. It’s a straightforward way to replace a worn or missing insert while keeping the muffler configured with a dedicated spark arrester component.
Yoshimura lists this kit as available as an optional spark arrester on applications that did not originally include one. Checking the insert chart for the correct application is recommended to confirm whether SA-08-K is the right match.
SA-08-K includes the spark arrester insert along with the end-cap collar and set screw. With these components packaged together, the kit is set up to support replacement or addition of the spark arrester assembly on applicable RS-4 mufflers.
Sound
Positioned in Yoshimura’s Replacement Service Parts line and labeled for the RS-4 series, SA-08-K is focused on servicing RS-4 off-road mufflers. It is intended specifically as a spark arrester kit, providing the key components needed for a spark arrester insert configuration when the application calls for it.
Fitment
Because applications can vary, Yoshimura advises confirming fitment through the insert chart. This page includes that reference so the correct match can be verified before installation. An installation PDF is also provided on the page for additional guidance during the install process.
| Part Number | SA-08-K |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Series | RS-4 |
| Shipping Weight | 0.65 lb |
| Barcode | 00840025909311 |
Instructions / What's Included (PDF)
Provided by Yoshimura. Opens in a new tab.
