How to Change the Oil in a 2009 Husqvarna TE450

Shop parts for a 2009 Husqvarna TE450 Dirt Bike.

Regular oil changes are essential to keep your 2009 Husqvarna TE450 running smoothly and to extend engine life. This guide, proprietary to MotoSport.com, covers every step, all necessary tools, and important model-specific tips to help you confidently perform an oil change on your TE450.

Tools and Supplies Needed

  • Tusk 4-stroke oil change kit (or similar) – includes oil, oil filter, funnel, and crush washer
  • 10 mm and 13 mm T-handle wrench or socket
  • 5 mm Allen wrench
  • Pliers and snap ring pliers
  • Drain pan
  • Measuring cup
  • Contact cleaner (for cleaning parts and surfaces)
  • Rags or paper towels
  • Rubber gloves and safety glasses
  • Torque wrench (capable of reading up to 25Nm/18.4ft-lb)
  • New oil filter and recommended engine oil (see owner's manual, typically a high-quality 4-stroke motorcycle oil)

Step-by-Step Instructions

  1. Warm up the engine
    Start the bike and let it idle for 3–5 minutes. This makes the oil thinner and easier to drain, ensuring contaminants are suspended and drained out with the oil. Work in a well-ventilated area for safety.
  2. Remove skid plate (if equipped)
    Using the appropriate tools, remove the skid plate so you have access to the drain plugs.
  3. Clean around drain plugs and filter areas
    Prevent debris from entering the engine by wiping down all surfaces near the drain plugs and oil filter with contact cleaner and rags.
  4. Remove drain plugs
    The 2009 TE450 typically has two or three drain plugs (main drain, auxiliary, and a filter screen plug). Position the drain pan beneath the bike and remove all drain plugs to let oil flow out. Note the location of each plug for correct reinstallation.
    Tip: One of these is a screen cover that may require a 5 mm Allen wrench.
  5. Remove the oil filter
    Remove the oil filter cover (commonly the left side of the engine near the front). Carefully pull out the old oil filter and let any remaining oil drain into the pan. Inspect the o-ring or gasket; replace if worn.
    Specific call-out: The smaller filter plug on the 2009 TE450 may be composite/plastic—use caution to prevent thread damage.
  6. Inspect and clean the filter screen(s)
    The TE450 often includes two filter screens (cylindrical and flat). Carefully pull the screens out, clean them with contact cleaner, and allow them to dry before reinstalling.
  7. Install new oil filter and crush washer
    Insert the new oil filter (lubricate the rubber seal with a small amount of clean oil). Fit a new crush washer onto the drain plugs.
  8. Reinstall and torque drain plugs and filter cover
    Reinstall all drains and filter plugs. Torque both the drain plug and the oil filter plug to 25 Nm (18.4 ft-lb). Be cautious not to overtighten the plastic/composite filter plug to avoid rounding the hex socket or damaging the threads.
  9. Fill with new oil
    Using a funnel, pour the recommended quantity and type of oil into the fill cap (see your owner’s manual for volume—typically about 1.1 liters for the TE450). Use a measuring cup for precision.
    Preferred oils include high-quality synthetic 4-stroke motorcycle oils such as AMSOIL or equivalent.
  10. Check oil level and finish up
    Start the engine and let it idle for 1–2 minutes, then shut it off. Wait about a minute and use the dipstick or sight glass to check the oil level. Add oil if needed.
    Wipe any spills and reinstall any removed parts like the skid plate.
  11. Properly dispose of old oil and filter
    Used oil and filters must be disposed of at a local recycling facility. Never dump oil on the ground or in the trash.

2009 Husqvarna TE450 Specific Call-Outs

  • Composite/plastic oil filter plug: Tighten very carefully to factory torque spec (25 Nm/18.4 ft-lb); overtightening may damage the hex socket or strip threads due to its material and size difference versus the steel drain plug.
  • Multiple drain locations: Ensure all plugs and filter screens are removed and cleaned, as residue can collect in each area.
  • Use high-quality synthetic oil: The TE450’s high-performance engine benefits from premium lubricants, especially under extreme riding conditions.
  • Replace both oil filters: This engine typically uses two filters of different sizes—replace both at each change for optimal protection.

Final Tips

  • Always refer to the owner’s manual for your engine’s exact oil capacity and safe oil types.
  • Inspect the oil for any signs of metal shavings or contamination, which could indicate internal wear.
  • Keep a maintenance log to track oil changes and engine hours for better longevity and resale value.

With these steps and considerations, your 2009 Husqvarna TE450 will run cleaner, cooler, and longer between maintenance intervals.

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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.