31390-91 Starter Motors for Sportster

This Protorque starter motor is a high-quality replacement for Harley-Davidson Sportster models, as well as Buell RS, Single, Tube frame, and XB models. Proudly made in the USA using 100% new components, these starters are engineered to meet or exceed original equipment standards. They offer a very competitive alternative to rebuilding an old unit, often proving more cost-effective while providing the reliability of a brand-new motor. This specific unit replaces OEM part number 31390-91. For any mechanic looking for a dependable starting solution that won't break the bank, Protorque provides a rugged, American-made option that ensures your V-twin fires up reliably every time you hit the button.