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The Yoshimura SA-21-K is a 1.500-inch replacement spark arrester insert designed for RS-12 off-road mufflers. This USFS-approved spark arrester is also available as an optional component for applications that were not originally equipped with a spark arrester.
The kit includes one spark arrester insert, one end-cap collar, and one set screw. Confirm application compatibility with the Yoshimura insert chart before installation. Fitment includes the 2021 Honda CRF450RX, 2021 Honda CRF450R, 2021 Kawasaki KX250X, 2021 Kawasaki KX450X, 2021 Kawasaki KX250F, 2019 Kawasaki KX450F, 2020 Kawasaki KX450F, 2021 Kawasaki KX450F, 2022 Honda CRF250R, and 2022 Honda CRF250RX.
Manufacturer part number: SA-21-K. Vendor part number: SA-21-K.
Features:
- Replacement spark arrester for Yoshimura RS-12 off-road mufflers
- 1.500-inch spark arrester size
- USFS-approved spark arrester
- Can be used as an optional spark arrester on applications not originally equipped with one
- Kit includes one spark arrester insert, one end-cap collar, and one set screw
- Fitment includes select 2019–2022 Honda and Kawasaki motorcycle applications; confirm compatibility with the Yoshimura insert chart
Fitment:
2019 Kawasaki KX450F
2020 Kawasaki KX450F
2021 Honda CRF450R
2021 Honda CRF450RX
2021 Kawasaki KX250F
2021 Kawasaki KX250X
2021 Kawasaki KX450F
2021 Kawasaki KX450X
2022 Honda CRF250R
2022 Honda CRF250RX
2022 Honda CRF450R
2022 Honda CRF450RX
2022 Husqvarna FC 450 Rockstar Edition
2022 Kawasaki KX250F
2022 Kawasaki KX250X
2022 Kawasaki KX450F
2022 Kawasaki KX450X
2022 KTM 450 SX-F Factory Edition
2023 Honda CRF250R
2023 Honda CRF250RX
2023 Honda CRF450R
2023 Honda CRF450RX
2023 Husqvarna FC 450
2023 Husqvarna FX 450
2023 Kawasaki KX250F
2023 Kawasaki KX250X
2023 Kawasaki KX450F
2023 Kawasaki KX450X
2023 KTM 450 SX-F
2023 KTM 450 XC-F
2024 Gas-Gas EX 450F
2024 Gas-Gas MC 450F
2024 Honda CRF250R
2024 Honda CRF250RX
2024 Honda CRF450R
2024 Honda CRF450RX
2024 Husqvarna FC 450
2024 Husqvarna FX 450
2024 Kawasaki KX250F
2024 Kawasaki KX250X
2024 Kawasaki KX450F
2024 Kawasaki KX450X
2024 KTM 450 SX-F
2024 KTM 450 XC-F
2025 Honda CRF450R
2025 Honda CRF450RX
2025 Kawasaki KX450F
2025 Kawasaki KX450X
2026 Kawasaki KX250