OEM John Deere Part Number TCU21475 Compatible with the following models: John Deere: Z820A Professional ZTrak Kawasaki Gas 48″ Deck, Z820A Professional ZTrak Kawasaki Gas 48″ Deck MOD, Z820A Professional ZTrak Kawasaki Gas 54″ Deck, Z820A Professional ZTrak Kawasaki Gas 54″ Deck MOD, Z820A Professional ZTrak Kawasaki Gas 60″ Deck, Z915B ZTrak B Series 48″ Deck, Z915B ZTrak B Series 54″ Deck, Z915B ZTrak B Series 60″ Deck, Z920A ZTrak Pro Series 48″ Deck, Z920A ZTrak Pro Series 48″ Deck MOD, Z920A ZTrak Pro Series 54″ Deck, Z920A ZTrak Pro 60″ Series, Z920M ZTrak M Series, Z920M ZTrak M Series 48″ MID-Z Deck, Z920M ZTrak M Series 48″ MOD-Z Deck, Z920M ZTrak M Series 54″ MID-Z Deck, Z920R ZTrak R Series 48″ MID-Z Deck, Z920R ZTrak R Series 54″ MID-Z Deck