2015 Western Star 4900EX passenger side wiper blade size: 20
2014 Western Star 4900EX driver side wiper blade size: 20
2014 Western Star 4900EX passenger side wiper blade size: 20
2013 Western Star 4900EX driver side wiper blade size: 20
2013 Western Star 4900EX passenger side wiper blade size: 20
2012 Western Star 4900EX driver side wiper blade size: 20
2012 Western Star 4900EX passenger side wiper blade size: 20
2011 Western Star 4900EX driver side wiper blade size: 20
2011 Western Star 4900EX passenger side wiper blade size: 20
2010 Western Star 4900EX driver side wiper blade size: 20
2010 Western Star 4900EX passenger side wiper blade size: 20
2009 Western Star 4900EX driver side wiper blade size: 20
2009 Western Star 4900EX passenger side wiper blade size: 20
2008 Western Star 4900EX driver side wiper blade size: 20
2008 Western Star 4900EX passenger side wiper blade size: 20
2007 Western Star 4900EX driver side wiper blade size: 20
2007 Western Star 4900EX passenger side wiper blade size: 20
2006 Western Star 4900EX driver side wiper blade size: 20
2006 Western Star 4900EX passenger side wiper blade size: 20
2005 Western Star 4900EX driver side wiper blade size: 20
2005 Western Star 4900EX passenger side wiper blade size: 20
2004 Western Star 4900EX driver side wiper blade size: 20
2004 Western Star 4900EX passenger side wiper blade size: 20
2003 Western Star 4900EX driver side wiper blade size: 20
2003 Western Star 4900EX passenger side wiper blade size: 20
2002 Western Star 4900EX driver side wiper blade size: 20
2002 Western Star 4900EX passenger side wiper blade size: 20
