Keeping Your Harley Cool with a ThunderMax Oil Cooler Fan

If you've ever found yourself stuck in stop-and-go traffic on a sweltering July afternoon, you already know why a thundermax oil cooler fan is one of the best upgrades you can slap on your ride. There is nothing quite as gut-wrenching as feeling that wave of heat radiating off your V-twin engine while you're sitting at a red light, knowing your oil temperature is climbing into the danger zone. Most of us love the raw power of an air-cooled engine, but let's be honest: they aren't exactly built for the modern-day traffic jam. ...

May 21, 2026 · 7 min · Dueren Hoyos