John Deere Muffler & Gaskets AM131137 M147400John Deere Muffler Kit. AM131137 – Muffler – 1. M147400 – Gasket – 2. BJD304 consists of OEM John Deere parts. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Outdoor Power Equipment\Snow Blowers”. The seller is “bombergersstore” and is located in this country: US..