Complete battery specifications for your 2003 Subaru WRX.
| Trim | Engine | Group Size | Cold Cranking Amps | Reserve Capacity | Terminal |
|---|---|---|---|---|---|
| SEL | 3.0L V6 | 25 | 722 CCA | 118 min | Dual Terminal |
| Base | 3.0L V6 | 24 | 714 CCA | 110 min | Dual Terminal |
| XLT | 3.0L V6 | 35 | 735 CCA | 119 min | Top Post |
| King Ranch | 3.0L V6 | 24F | 668 CCA | 100 min | Dual Terminal |
| Lariat | 3.0L V6 | 24F | 689 CCA | 116 min | Dual Terminal |
| Base | 2.5L I4 | 24F | 496 CCA | 82 min | Top Post |
| Denali | 2.5L I4 | 25 | 595 CCA | 103 min | Dual Terminal |
| XL | 2.5L I4 | 47 | 580 CCA | 96 min | Dual Terminal |
| Lariat | 2.5L I4 | 24F | 561 CCA | 98 min | Top Post |
| Sport | 2.5L I4 | 24F | 561 CCA | 94 min | Top Post |
| Denali | 6.2L V8 | 51R | 740 CCA | 116 min | Dual Terminal |
| SEL | 6.2L V8 | 51R | 772 CCA | 122 min | Dual Terminal |
| Sport | 6.2L V8 | 51R | 765 CCA | 115 min | Top Post |
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