Acura RSX Battery Sizes by Year
Engine-specific battery groups by model year.
| Year | Engine / groups |
|---|
| 2006 | K20A: 51R-2 K20A3: 51R-2 K20Z1: 51R-2 |
| 2005 | K20A: 51R-2 K20A3: 51R-2 K20Z1: 51R-2 |
| 2004 | K20A: 51R-2 K20A2: 51R-2 K20A3: 51R-2 |
| 2003 | K20A: 51R-2 K20A2: 51R-2 K20A3: 51R-2 |
| 2002 | K20A: 51R-2 K20A2: 51R-2 K20A3: 51R-2 |