Exhaust Parts
Onan 155-1258 Muffler for RV Genset replaces 155-1222
Part #: 155-1258
$95.23
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... more info