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Onan 155-1258 Muffler for RV Genset replaces 155-1222



Onan muffler #155-1258 replaces 155-1222.

NOTE: The 542-0472 kit that had this muffler in it is no longer available as a complete kit. This is the muffler that was inside that kit.

Length including outlet  21 1/2 inches

Length NOT including outlet  19 1/2 inches

Width 4 1/2 inches
Inlet 1 1/2 inches OD
Outlet 1 3/8 inches OD

Add to Cart:

  • Model: 155-1258
  • NOTICE: If you need this to be shipped yet today, you must call first 1-800-630-1230 to check on-hand stock and if it is possible to ship today. If your need is not urgent, simply add to cart and checkout.
  • Manufactured by: Onan«


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