Updated Insert Design
Yoshimura updates the SA-13-K design with a weldnut inside the insert. This change is intended to make installation and removal easier when servicing the spark arrester in compatible RS-4 muffler setups.
Yoshimura · RS-4
The Yoshimura Spark Arrester Kit for RS-4 Mufflers, 1.500" is a replacement service part designed for RS-4 mufflers using a "Turn-out" end-cap. It’s an updated version of SA-13-K, featuring a weldnut inside the insert to help simplify installation and removal.
This USFS approved spark arrester is listed for Honda CRF250L 2013–2020 and Honda CRF250L-Rally 2017–2020 applications. It can also be used as an optional spark arrester on applications that were not originally equipped with one; use the insert chart and the fitment table on the page to confirm the correct application.
Yoshimura updates the SA-13-K design with a weldnut inside the insert. This change is intended to make installation and removal easier when servicing the spark arrester in compatible RS-4 muffler setups.
This kit is specified as a replacement USFS approved spark arrester for Yoshimura RS-4 mufflers equipped with a "Turn-out" end-cap. It’s built to restore the correct spark arrester configuration when a replacement is needed.
The kit includes the spark arrester insert, an end-cap collar, and a set screw. These included components provide the parts needed to install the spark arrester assembly as specified for the RS-4 muffler application.
Installation
As part of Yoshimura’s Replacement Service Parts line in the RS-4 series, this spark arrester kit is intended for RS-4 mufflers that use a "Turn-out" end-cap. It’s positioned as a direct replacement option to refresh or restore the spark arrester hardware on the specified exhaust configuration.
Fitment
This spark arrester kit is listed for Honda CRF250L 2013–2020 and Honda CRF250L-Rally 2017–2020. Yoshimura also notes it may be used as an optional spark arrester for applications not originally equipped with one, so application confirmation is important; reference the page’s fitment table and the insert chart guidance to verify the correct match.
Sound
The product page includes a product video and an installation PDF to help guide the installation process. Combined with the updated weldnut insert design, these resources support easier service and help ensure the spark arrester components are assembled correctly for the intended RS-4 muffler configuration.
| Part Number | SA-13-K-1 |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Series | RS-4 |
| Shipping Weight | 0.6 lb |
| Barcode | 00840025914063 |
| Make | Model | Model Years |
|---|---|---|
| Honda | CRF250L | 2013–2020 |
| Honda | CRF250L-Rally | 2017–2020 |
Fitment as listed by Yoshimura for part number SA-13-K-1.
Instructions / What's Included (PDF)
Provided by Yoshimura. Opens in a new tab.
