Harley-Davidson® Battery Cross-Reference: OEM to Yuasa and Big Crank
Posted on November 10, 2025 by Derek Puffinburger
Stop guessing which battery fits your Harley-Davidson®. We break down confusing OEM part numbers (like 66010-97C) and provide the definitive cross-reference guide, mapping your original part to a superior Big Crank (Deka ETX) replacement. Get higher Cold Cranking Amps (CCA) and free shipping with a proven, American-made AGM battery built to handle the road.
