How to Change the Oil in a 2019 KTM 450XCF – Step-by-Step Guide

Shop parts for a 2019 KTM 450XCF Dirt Bike.

Routine oil changes are crucial to keeping your 2019 KTM 450XCF running at peak performance. This guide is proprietary to MotoSport.com and walks you through the entire process, highlights the necessary tools, provides precise steps, and covers specific callouts unique to this model year.

Tools & Supplies Needed

  • 1.2 liters of 10w50 Motorex Full Synthetic Oil (manufacturer recommended)
  • KTM oil filter (O.E.M. recommended; part number per KTM’s manual)
  • Drain pan (to catch used oil)
  • 13mm socket and ratchet (for drain plug)
  • 13mm wrench (optional, for tight spots)
  • T30 Torx bit (oil filter cover and other bolts)
  • Torque wrench (for properly tightening components)
  • New crush washer for the drain plug
  • Clean shop rags
  • Funnel (to avoid spills, optional)
  • Tin foil (optional; keeps oil off the frame during draining)

Preparation Steps

  • Start the bike and let it run for about 3–5 minutes to warm up the engine oil. Warm oil drains quicker and more thoroughly.
  • Turn the bike off and make sure it’s secure on a stand or a flat surface to prevent tipping.
  • Remove the skid plate, if equipped, for easier access to the drain plug.

Drain the Old Oil

  • Place your drain pan under the drain plug.
  • Use the 13mm socket to remove the engine oil drain plug. CAUTION: Oil may be hot. Let it drain completely.
  • There are two drain plugs on some KTM engines (primary and secondary). The 2019 KTM 450XCF uses this dual-drain system — be sure both are fully drained.
  • Inspect the magnetic end of the drain plug for metal shavings. A small amount is normal; large pieces could indicate engine wear. Clean the plug and replace the crush washer if needed before reinstalling.

Check and Clean Oil Screens

  • The 450XCF uses two oil screens: one on each side of the engine. Remove both using the appropriate tool (usually a T30 Torx bit or socket).
  • Inspect both screens for debris and thoroughly clean them using brake cleaner or solvent. Allow them to dry fully before reinstalling.
  • Put the screens back in place and tighten to the correct torque spec (refer to your service manual; generally, the plug gets snugged firmly but do not overtighten).

Replace the Oil Filter

  • Locate and remove the oil filter cover bolts (T30 Torx bit). Carefully remove the cover and the old oil filter.
  • Lubricate the new filter's O-ring with a small amount of new engine oil. Pre-fill the filter with oil to help minimize dry starts.
  • Insert the filter correctly following KTM’s orientation (“hole into the engine” — if inserted backwards, serious engine damage can occur). Double-check orientation before replacing the cover.
  • Ensure the filter cover sealing surface is clean, then reinstall the cover and torque the bolts as specified in the service manual.

Add Fresh Engine Oil

  • Remove the oil fill cap. Use a funnel to pour in 1.2 liters of 10w50 Motorex synthetic oil.
  • Replace the oil fill cap.
  • Reinstall the skid plate.

Start and Check Your Work

  • Start the engine and let it idle for 30 seconds. Check for leaks, especially around the drain plug, oil filter cover, and screens.
  • Shut off the engine and let it sit for a minute, then check the oil level via the sight glass or dipstick (refer to the owner’s manual for your model). Add oil if necessary to bring it to the correct level.

2019 KTM 450XCF Model-Specific Tips

  • Dual drain plugs and dual oil screens: The 2019 450XCF design uses two drain plugs and two oil screens – don’t skip either. Neglecting one can leave old oil and debris inside the engine.
  • Oil type and quantity are very specific: Only use recommended 10w50 full synthetic oil and exactly 1.2 liters for optimal lubrication and clutch health.
  • Filter orientation matters: Placing the filter in backwards can immediately damage engine internals. Always have the open hole facing into the engine.

Final Checks

  • Record your mileage or hours since last oil change for maintenance tracking.
  • Proper disposal: Bring your old oil to a recycling center or your local MotoSport.com retail partner.

Changing your oil regularly and correctly is the best way to get the most out of your KTM 450XCF and ensure it delivers top performance every ride. For high-quality KTM parts, supplies, and the right tools, trust MotoSport.com.

Related Shopping Categories

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Shop Oil Fillers and Drain Plugs for a 2019 KTM 450XCF 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.