Parts for your 2017 Mitsubishi Outlander-Sump plug washers

2017 Mitsubishi Outlander sump-plug-washers

Based on technical references, sump-plug-washers are fitted and required on the 2017 Mitsubishi Outlander’s engine oil drain plug. The Mitsubishi Motors Outlander service manual for the ZK/ZL series (2016–2019) specifies replacing the drain plug gasket at each oil change, and parts catalogues list a 14 mm crush-type washer (commonly referenced as Mitsubishi Genuine MD050317 or equivalent) for the Outlander’s 2.0L, 2.4L petrol and 2.2L diesel engines. Industry fitment guides and dealership parts systems echo this requirement, noting a soft metal (copper or aluminium) washer that deforms to seal the sump plug. These technical sources confirm that sump-plug-washers are relevant and used on this model.

For the 2017 Mitsubishi Outlander, sump-plug-washers do the unglamorous but crucial job of sealing the oil drain plug against the sump. They’re designed to crush slightly on tightening, filling micro-gaps and preventing weeps or drips once fresh oil is back in. It’s a small, inexpensive bit that saves a lot of grief—no one wants an oil spot on the driveway, let alone a slow leak that could risk engine health.

As part of routine servicing, it’s best practice to replace the sump-plug-washer every oil change. Mitsubishi’s service guidance calls for a new gasket each time the plug is removed, because once a crush washer has been compressed, it won’t spring back or seal as reliably again. Most 2017 Outlanders use a 14 mm crush washer, genuine and quality aftermarket options are widely available across Australia and New Zealand.

Good habits make the job easy and tidy:

• Always have a fresh washer on hand before starting an oil change.
• Inspect the old washer—if it’s flattened, grooved, or scored, it’s done its dash.
• Clean the sump face and plug threads, fit the new washer squarely.
• Torque the plug to spec—typically around 39 N·m for many Outlander engines, check the exact spec in the service manual for the specific engine code.
• After refill, run the engine, then check for seepage around the plug.

Technical references: Mitsubishi Motors Outlander ZK/ZL Service Manual (Engine/Lubrication section – drain plug gasket replacement instruction and torque guidance), Mitsubishi Genuine Parts catalogue (drain plug gasket, commonly MD050317, 14 mm crush type) and equivalent professional fitment databases used by dealers and trade suppliers in AU/NZ.

Popular questions about 2017 Mitsubishi Outlander sump-plug-washers

What size sump-plug-washer does a 2017 Outlander use?
The 2017 Outlander typically uses a 14 mm crush washer on the engine oil drain plug. Genuine Mitsubishi and reputable aftermarket washers in this size fit the petrol and diesel variants for this model year. Always match by VIN or engine code if in doubt.

How often should the sump-plug-washer be replaced?
Every oil change. Crush washers are single-use by design, once compressed, they don’t reseal as well a second time. Replacing it prevents annoying weeps and helps keep torque accurate without over-tightening.

What’s the correct torque for the drain plug with a new washer?
Many 2017 Outlander engines specify around 39 N·m. Because specs can vary slightly by engine, it’s smart to check the Mitsubishi service manual for the exact figure for the vehicle’s engine variant and follow that number with a calibrated torque wrench.