How to Change the Oil in a 2019 Suzuki DR-Z400SM

Shop parts for a 2019 Suzuki DR-Z400SM Dirt Bike.

Changing the oil on your 2019 Suzuki DR-Z400SM is a straightforward yet essential part of routine maintenance. This process ensures your supermoto's engine enjoys a long, healthy life and optimal performance. The DR-Z400SM oil change procedure is shared across most DR-Z400 models, so these instructions are also relevant to other recent DR-Z400S and DR-Z400 base models. However, this guide features important specifics for your 2019 DR-Z400SM.

Tools and Parts Needed

  • Ratchet
  • 8mm, 12mm, and 17mm sockets
  • Torque wrench
  • Drain pan
  • New oil filter (OEM or equivalent)
  • 10W-40 motorcycle-specific oil (2 quarts)
  • Funnel
  • Shop towels or rags
  • Gloves and safety glasses (recommended for safety)
  • Replacement washers for drain bolts (if needed)

Key Call-Outs for the 2019 Suzuki DR-Z400SM

  • The oil fill cap/dipstick is at the frame's top—remove it to ensure smooth and complete draining

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  • The DR-Z400SM uses two distinct drain bolts: one on the engine crankcase and one on the frame's lower section, both must be drained.
  • Take note of the hidden frame oil filter screen—often missed by owners. Remove and inspect it during major oil changes for trapped debris

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  • Recommended oil capacity is 1.8 liters (1.9 quarts) with a new filter, 1.7 liters (1.8 quarts) without

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  • The oil should be changed after the first 600 miles and every 3,500 miles thereafter under normal riding conditions

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Step-by-Step Instructions

  1. Warm up the engine for a few minutes. Warm oil circulates better and drains more completely. Shut the engine off and let it sit for a short while so the oil isn't dangerously hot.
  2. Remove the skid plate (if equipped) to access the drain bolts.
  3. Remove the oil filler cap/dipstick on top of the frame. This action helps the engine vent and eases oil drainage

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  4. Position the drain pan under the engine crankcase drain bolt (17mm). Remove the bolt and washer, allowing the old oil to drain completely. Inspect the washer for damage–replace if necessary

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  5. Reinstall the crankcase drain bolt once drainage slows to a drip. Tighten it to 15 ft-lbs (20 Nm) of torque

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  6. Move the drain pan under the frame's lower drain bolt (12mm). Remove that bolt and washer to drain residual oil from the frame. Check and replace the washer if necessary, then reinstall the bolt and torque appropriately.
  7. Replace the oil filter:
    • Locate the oil filter cover (usually held by 8mm bolts).
    • Remove the cover and old filter. Watch for the old O-ring–replace if damaged or worn.
    • Install the new filter, ensuring it seats correctly.
    • Reinstall the cover, tightening the bolts evenly.
  8. (Optional, but recommended) Clean the frame oil filter screen:
    • Locate the filter screen on the right side of the frame, just behind the oil line. Remove its plug with a socket and pull out the screen.
    • Clean the screen with solvent or brake cleaner, then reinstall it securely.
  9. Add fresh oil:
    • Place a funnel in the oil fill port.
    • Pour in 1.8 liters (about 1.9 quarts) of 10W-40 motorcycle oil if you replaced the filter, or 1.7 liters (about 1.8 quarts) if not

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    • Reinstall the filler cap/dipstick.
  10. Start the engine and let it idle for 2–3 minutes. This allows oil to circulate and fills the filter and galleries.
  11. Shut off the engine, wait a minute, then check the oil level. Add oil as necessary to reach the correct mark on the dipstick.
  12. Check for leaks around all drain bolts and the oil filter cover.
  13. Reinstall the skid plate and clean up any spills.
  14. Dispose of used oil and filter ethically—take them to a recycling station or auto parts store.

Special Tips for the 2019 Suzuki DR-Z400SM

  • Always use motorcycle-specific oil; automotive oil can harm your wet clutch.
  • Never overtighten drain bolts or the oil filter cover—stripped threads in the aluminum engine case are costly to fix.
  • The bike's oil capacity is lower if you do not replace the filter–double-check if you skip the filter replacement.
  • If you've just bought the bike used, do a complete oil and filter change right away for your records and peace of mind.

Conclusion

Regular oil changes keep your 2019 Suzuki DR-Z400SM running strong–follow these steps every 3,500 miles or after challenging rides. Keep detailed records for warranty purposes, and always use high-quality filters and oil. MotoSport.com is your trusted partner for OEM and aftermarket parts to make your next service fast and trouble-free.

Related Shopping Categories

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Shop Oil Fillers and Drain Plugs for a 2019 Suzuki DR-Z400SM 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.