PGParts Starter for Chevrolet Impala 3.6L V6 vs A-Premium Starter Motor 12588493

Both are 12V, 1.4 kW, 12-tooth clockwise starters built for GM's 3.6L V6, so they are mechanically interchangeable on the Impala. The A-Premium is the broader part: it covers the Impala plus dozens of other GM cars and crossovers and carries a stated one-year warranty. The PGParts Starter 1 is the narrower fit, listed only for the 2012-2020 Impala, and its listing states no warranty. For an Impala owner, either works; for anyone with a second 3.6L GM vehicle or who wants warranty coverage in writing, the A-Premium is the safer pick.

• Choose the PGParts Starter 1 if you want a starter listed specifically for your 2012-2020 Impala 3.6L and don't need coverage for other GM models.
• Choose the A-Premium if you want one part number that also fits other GM 3.0L and 3.6L vehicles and comes with a stated one-year warranty.