DENSO Internal Regulator Internal Fan 12V 55A CW 1 V Groove Pulley Compatible with John Deere W/Yanmar Engines 20-51HP DSL John Deere Ag Tractor 4100 3 Cyl. 20HP, Yanmar Dsl. 1997-2003 4110 3 Cyl. 20HP, Yanmar Dsl. 2002-2006 John Deere Commercial Mower 1420 3 Cyl. 24HP, Yanmar Dsl. 2001-2008 1435 3 Cyl. 24HP, Yanmar Dsl. 2001-2008 1565 3 Cyl. 36HP, Yanmar Dsl. 2003-2008 1620 4 Cyl. 41.5HP, Yanmar Dsl. 1998-2008 John Deere Mower - Front 1445 3 Cyl. 31.4HP, Yanmar Dsl. 2001-2008 1545 3 Cyl. 31.4HP, Yanmar Dsl. 2003-2008 John Deere Mower - Professional 1505 4 Cyl. 41.5HP, Yanmar Dsl. 2001-2007 1515 4 Cyl. 41.5HP, Yanmar Dsl. 2001-2007 1905 4 Cyl. 41.5HP, Yanmar Dsl. 2001-2007 John Deere Mower - Wide Area 1600 4 Cyl. 41.5HP, Yanmar Dsl. 1998-2008 John Deere Tractor 2320 Tractor 3 Cyl. 24HP, Yanmar Dsl. 2006-2008 J/D Tractor - Utility 2520 Utility Tractor 3 Cyl. 26.5HP, Yanmar Dsl.06-10 2720 3 Cyl. 31.4HP, Yanmar Dsl. 2008-2010