Honda Element Battery Sizes by Year

Engine-specific battery groups by model year.

Year	Engine / groups
2011	K24A8: 51R-2
2010	K24A8: 51R-2
2009	K24A8: 51R-2
2008	K24A8: 51R-2
2007	K24A8: 51R-2
2006	K24A8: 51R-2
2005	K24A4: 51R-2
2004	K24A4: 51R-2
2003	K24A4: 51R-2