While many Harley-Davidson models are air-cooled, newer Street Glide bikes like the Twin-Cooled Milwaukee-Eight engines feature liquid-cooled systems to enhance performance and durability. At Motorhelmets, our complete coolant flush service protects your engine from overheating, corrosion, and premature wear — especially during long rides or hot SoCal weather.

If your coolant is old, low, or contaminated, don’t wait — schedule a professional flush to keep your ride cool and reliable.

Service Charge: $150.00

Includes standard coolant. Upgrade to Engine Ice high-performance coolant available at additional cost.

What’s Included:

• Complete Coolant Drain: Removes old coolant, sediment, rust, and debris
• Radiator and Cap Inspection: Leak, crack, and pressure integrity checks
• Coolant Flush & System Cleaning: Cooling-safe flush agent used for full cleaning
• Refill with Fresh Coolant: Standard refill or Engine Ice upgrade for thermal efficiency
• System Bleed & Pressure Test: Ensures air-free circulation and reliable performance

Signs You Need a Coolant Flush:

• High engine temperatures
• Visible leaks
• Discolored or foul-smelling coolant
• Bike has been stored unused for over 6 months
• No coolant service in the past 2+ years

Why Choose Motorhelmets?

• Harley-Davidson Street Glide service professionals
• Equipped for Twin-Cooled Milwaukee-Eight engines
• OEM-approved coolant and procedures used
• Located in Fullerton, CA — serving Orange County & Los Angeles

Book Your Coolant Flush Today

Prevent overheating and protect your engine with our $150 coolant flush service. Ask about upgrading to Engine Ice for max performance in extreme conditions.