Yoshimura R&D of America, Inc.

SPARK ARRESTER KIT RS-4S Muffler, 1.500" (SA-13-K-1)

SPARK ARRESTER KIT RS-4S Muffler, 1.500" (SA-13-K-1) - Main image
$30.21 $47.95 In stock

Category: Replacement Service Parts

  • Updated Version of SA-13-K, weldnut inside of insert makes installation/removal easier
  • Replacement USFS Approved Spark Arrester for RS-4 Mufflers with "Turn-out" end-cap.
  • Available as optional Spark Arrester on applications not originally equipped with a Spark Arrester
  • Please see our Insert Chart to confirm fitment for your application
  • Kit Includes:
    • Spark Arrester Insert
    • End-cap collar
    • Set screw

*If you have any questions about fitment or applications, please call our Sales Department at 1-800-634-9166.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Stella W. ★★★★★

Installed this on my RS-4 muffler and the weldnut on the insert was a nice upgrade—made screwing it in much less fiddly than I expected. Fits perfectly with the turn-out end cap, and it’s good to know it’s USFS approved for riding areas that require it.

Elizabeth ★★★★★

I was dreading removing the old spark arrester, but this updated version with the weld nut inside the insert made installation a breeze on my muffler. It fits the 1.5" turn-out end cap perfectly and feels well-built.

Michael ★★★★★

The welded nut inside the insert is a real improvement—no more fumbling to keep the old bolt aligned while tightening. It clicks into place on my RS-4 turn-out and the USFS approval gives me peace of mind for trail riding.

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