John Deere Original Equipment Wrench - M162737 This part fits; 48-Inch, 54-Inch and 60-Inch Mower Decks and 48-Inch Replacement Decks for Tractor-Mounted Mowers X300 Select Series Tractor X300R Select Series Tractor X304 Select Series Tractor X305R Tractor X310 Tractor X320 Select Series Tractor X324 Select Series Tractor X330 Lawn and Garden Tractor X350 Lawn and Garden Tractor X350R Lawn and Garden Tractor X354 Lawn and Garden Tractor X360 Select Series Tractor X370 Lawn and Garden Tractor X380 Lawn and Garden Tractor X384 Lawn and Garden Tractor X390 Lawn and Garden Tractor X394 Lawn and Garden Tractor X500 Multi-Terrain Tractor X530 Tractor Multi-Terrain Series with 54-inch Mower Deck X534 Multi-Terrain Tractor with 48-inch or 54-inch Mower Deck X540 Multi-Terrain Tractor X570 Lawn and Garden Tractor X580 Lawn and Garden Tractor X584 Lawn and Garden Tractor X590 Lawn and Garden Tractor X710 Signature Series Tractor X730 Signature Series Tractor X734 Signature Series Tractor X738 Signature Series Tractor X739 Signature Series Tractor X750 Signature Series Tractor X754 Signature Series Tractor X758 Signature Series Tractor X940 Lawn Tractor X948 Lawn TractorX949 Lawn Tractor This is an OEM John Deere part.