How to Change the Coolant in a 2019 Husqvarna FE501HQ
Shop parts for a 2019 Husqvarna FE501HQ Dirt Bike.
Routine cooling system maintenance is essential for peak performance and long engine life, especially on your 2019 Husqvarna FE501HQ. Whether you ride hard trails or take on competitive off-road races, keeping your coolant fresh will help prevent overheating and internal engine damage. Here is MotoSport.com's step-by-step guide to changing the coolant on your FE501HQ, plus some important model-specific notes.
Tools & Supplies Needed
- Fresh, dirt bike-approved coolant (1.2L recommended capacity)
- Drain pan
- Socket set and flathead screwdriver
- New seal ring for drain bolt (highly recommended)
- Funnel
- Clean, lint-free rag
- Gloves and eye protection
Coolant Change Procedure
- Let the engine cool completely before starting. Hot coolant can cause severe burns.
- Stabilize the bike upright on a stand or firm level surface.
-
Remove the radiator cap.
Slowly loosen, then remove the cap to release system pressure. -
Locate and remove the drain bolt on the water pump cover (lower right side of the engine). Position the drain pan underneath.
Allow all old coolant to fully drain. -
Inspect the drain bolt seal ring.
Replace it with a new one if worn or damaged for leak-free sealing. - Reinstall the drain bolt (with seal ring) and torque to manufacturer specification.
-
Refill the radiator slowly using your funnel. Add fresh coolant until it reaches the base of the filler neck (do not overfill).
The total capacity is about 1.2 liters for the FE501HQ. -
Check for air pockets:
Gently tap the coolant hose or radiator and squeeze the hoses to help release trapped air. Top off coolant if needed. - Reinstall the radiator cap.
- Start the engine and let it idle until warm, watching the coolant level. Allow the bike to heat cycle so the thermostat opens, helping circulate coolant and purge any remaining air.
- Shut off and let the engine cool entirely. Re-check and top up the radiator and overflow reservoir as necessary.
Model-Specific Tips for the 2019 Husqvarna FE501HQ
- The FE501HQ uses high-performance components prone to high heat – always use quality coolant compatible with aluminum system parts.
- After coolant changes, check hose clamps and radiator connections for leaks, especially if riding rough, as this model's chassis vibrates more under load.
- Husqvarna recommends checking the cooling fan operation and radiator fins for debris or damage regularly due to its off-road exposure.
- Always verify torque specs for the drain bolt with a calibrated torque wrench to avoid stripping the soft aluminum cover.
Pro Maintenance Suggestions
- Flush the cooling system every two coolant cycles, or if you notice rust, scale, or oily residue when draining.
- Replace coolant every 2 years or after extensive muddy/wet rides for best engine longevity.
- Consult your FE501HQ's owner's manual for factory torque specs and coolant recommendations.
Related Shopping Categories
Shop Radiators for a 2019 Husqvarna FE501HQ Dirt Bike.
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Shop Temperature Sensors for a 2019 Husqvarna FE501HQ Dirt Bike.
Shop Tools for a 2019 Husqvarna FE501HQ Dirt Bike.
Shop Radiator Hoses for a 2019 Husqvarna FE501HQ Dirt Bike.
Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.