How to Change the Coolant in a 2019 Husqvarna FE350HQ – A Complete Guide
Shop parts for a 2019 Husqvarna FE350HQ Dirt Bike.
Keeping your 2019 Husqvarna FE350HQ running cool and reliable means regular maintenance, and that includes a coolant change. This guide, unique to MotoSport.com, walks you through the full process step–by–step and gives you the Husqvarna–specific tips you need for a hassle–free coolant swap.
What the FE350HQ Owner Should Know
- The FE350HQ uses a high–performance cooling system common to KTM and Husqvarna's off–road lineup, sharing the engine platform with several models. This means the process is similar across related bikes, but always check your model for unique fitments and torque specs.
- The factory coolant is typically a ready–to–use ethylene glycol–based product. Husqvarna recommends using a high–quality motorcycle coolant with a low freezing point and corrosion inhibitors safe for aluminum and magnesium engine parts.
- For the 2019 FE350HQ, the radiator cap is located on the right–side radiator. Take care not to open it when the engine is hot to avoid burns and pressure release hazards.
Step–by–Step Coolant Change Instructions
- Preparation
- Allow the engine to cool completely.
- Place the bike upright on a level surface using a stand to keep it stable and nearly level during draining and refilling.
- Prepare a container for old coolant – never dump coolant into the environment.
- Gather basic tools: socket wrench (usually with an M6 or 10 mm socket for the drain bolt), funnel, and your replacement coolant.
- Drain the Old Coolant
- Remove the seat and, if necessary for access, the right upper shroud panel.
- Slowly open the radiator cap to release pressure.
- Locate the coolant drain bolt on the water pump cover (usually on the right side of the crankcase, below the radiator hoses).
- Place your catch pan and remove the drain bolt, letting all coolant flow out. Remove the lower radiator hose if you want to empty the system more thoroughly.
- Optionally, flush the radiators with clean distilled water to remove any residue.
- Inspect and Button Up
- Inspect the drain bolt O–ring/seal. Replace if damaged or overly compressed for a leak–free seal.
- Reinstall the drain bolt and tighten to factory spec (typical torque: 10 Nm/7.4 lbf ft for M6).
- Add Fresh Coolant
- Using a funnel, fill the radiator slowly with your new coolant. Pour until the level is just below the top of the radiator neck.
- On the FE350HQ, it's important to tilt the bike gently side to side a few times during filling. This ensures air pockets are released and the coolant circulates fully into all passages.
- Reinstall the radiator cap securely.
- Bleed the System
- Start the engine and let it idle until it reaches normal operating temperature. Watch for signs of air burping out beneath the cap or hoses. Shut down and allow to cool.
- Check the level again; add coolant if needed as trapped air escapes and the level settles.
- Final Steps
- Double–check all fittings, hoses, and the drain bolt for leaks.
- Reassemble any removed panels and reinstall the seat.
- Dispose of the old coolant according to local hazardous waste regulations.
Extra Tips for the 2019 FE350HQ
- This model may benefit from periodic checks of the radiator fan operation, as off–road conditions can clog fins and push the system toward overheating.
- If you ride in sustained high–heat or competition situations, consider upgrading to a performance coolant or a radiator cap with a higher pressure rating to reduce boil–over risk.
- Monitor the coolant level after your first ride, as minor air pockets may continue to bleed out following the initial refill.
Regular coolant changes help protect your FE350HQ's engine from corrosion, overheating, and internal damage—keeping you on the trail longer. Ready for your next round of maintenance or looking for parts? Shop parts for a 2019 Husqvarna FE350HQ Dirt Bike.
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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.