Answer
Bob - you did not specify which Ariens 42" model you mean. If you are talking about an Ariens 42-inch lawn tractor, then yes, this Husqvarna HU42 (531 30 96-41) mulch kit will fit this tractor. Husqvarna does manufacture the Ariens branded lawn tractors, so the Husqvarna tractor accessories (baggers, mulch kits, etc.) will also fit on the same size Ariens brand tractor. If you are asking about a 42" Ariens zero turn mower, then NO, none of the Husqvarna accessories will work on an Ariens zero turn mower. Ariens builds their own zero turn mowers, and these have their own specific accessories.
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