How to Change the Oil in a 2009 Husqvarna TC450: A Complete MotoSport.com Guide

Shop parts for a 2009 Husqvarna TC450 Dirt Bike.

Regular oil changes are vital for the performance and longevity of your 2009 Husqvarna TC450. This step-by-step guide covers the tools needed, every step of the process, special call-outs for this specific year/model, and pro tips to ensure every MotoSport.com rider can change their oil with confidence.

Tools & Supplies Needed

  • 4-stroke motorcycle oil (Consult your owner's manual for viscosity; quality synthetic 10W-50 or 10W-60 is common for Husqvarna 450cc four-strokes)
  • Oil filter (OEM or high-quality aftermarket, specific to TC450)
  • Replacement crush washer (for the drain bolt)
  • Funnel
  • Drain pan
  • Measuring cup
  • 10mm and 13mm socket or T-handle
  • 5mm Allen key
  • Rags/paper towels
  • Contact/brake cleaner (optional; to clean oil residue)
  • Safety glasses and rubber gloves
  • Torque wrench

Preparation: Get Ready to Get Dirty

  • Work in a well-ventilated area and make sure your bike is stable (using a stand or lift is ideal).
  • Start the bike and let it idle for 2–3 minutes to gently warm the oil. This helps it drain completely.
  • If fitted, remove the skid plate (most are held with 10mm or 13mm bolts) to access the drain plugs and oil screen with ease.
  • Clean any dirt from around the drain plugs and oil filter cover to prevent contamination.

Step 1: Draining the Oil

  • With the engine off, position your drain pan under the engine.
  • Use a socket or Allen wrench to remove the main oil drain plug located underneath the engine. Note: There are often multiple plugs – one for the main sump, and another for an oil screen. The TC450 typically uses both a bolt (drain plug) and a filter plug.
  • Allow the oil to drain fully. Slightly tilting or rocking the bike gently may help remove residual oil.
  • Remove the oil screen cover (depending on your skid plate, you may use a 5mm Allen key or other tool). Carefully extract and clean the oil screen with brake cleaner, then let it dry.

Step 2: Changing the Oil Filter

  • Locate and remove the oil filter cover (typically held by 2-3 bolts). Gently remove the oil filter, noting its orientation.
  • Clean the filter cavity with a rag. Install the new oil filter, making sure it's seated properly, then replace the cover and its bolts.
  • Refer to your manual for the torque spec on the filter and drain plug (for 2009 Husqvarna 450s, 25 Nm or 18.4 ft/lb is the specification for both the filter plug and drain plug). Avoid overtightening, which risks stripping the aluminum threads.

Step 3: Reinstallation and Refilling

  • Install a new crush washer on the drain plug(s) and filter plug(s) to prevent leaks.
  • Tighten all plugs and covers by hand first, then to specification with your torque wrench.
  • Place a funnel in the oil fill port (on the clutch side, top of the engine).
  • Pour in fresh oil up to the specified volume (check your owner's manual, often around 1.3L, but verify for your year/model). Pour slowly to avoid spills and overfilling.
  • Replace and tighten the oil filler cap.

Step 4: Final Checks

  • Start the engine and let it idle for 1–2 minutes. Shut it off, wait a minute, then check the oil level using the sight glass or dipstick as applicable.
  • Top off oil if necessary but do not overfill.
  • Inspect around the drain and filter plugs for leaks.
  • Safely dispose of the old oil and filter at a recycling center or auto parts store.

2009 Husqvarna TC450 Specific Notes & Call-Outs

  • The oil drain plug and filter plug are aluminum: Always use the factory torque specs to prevent damaging threads. Husqvarna engines are notorious for stripped or rounded bolt heads if overtightened.
  • This model employs an oil screen in addition to the standard filter. Remove and clean the screen thoroughly with each oil change to ensure max engine protection.
  • If your bike has a skid plate, it may need to be removed to access the drain and filter plugs easily.

Expert Tips

  • Keep spare crush washers in your toolbox to avoid reusing old, flattened ones—they are critical for leak prevention.
  • Record the date and total engine hours at each oil change.
  • If you ride in extreme conditions (dust, mud, racing), consider changing oil and filters more frequently than standard intervals.
  • Using a measuring cup ensures you do not overfill or underfill the engine; check the owner's manual for correct capacity.

Changing the oil in your 2009 Husqvarna TC450 is straightforward with the right tools, attention to detail, and respect for proper torque. This simple routine keeps your bike running strong whether you’re on the trail or track—brought to you by MotoSport.com, your partner in performance and maintenance.

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Shop Oil Fillers and Drain Plugs for a 2009 Husqvarna TC450 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.