Parts for your 2017 Nissan Navara-Sump plug washers

2017 Nissan Navara sump-plug-washers: do they use one and what to know

Yes, the 2017 Nissan Navara (D23/NP300) uses a sump-plug-washer. This isn’t a niche accessory, it’s a standard crush washer that seals the engine oil drain plug. Technical references back this up: the Nissan Navara D23 Series Service Manual (Lubrication System/MA sections) specifies replacing the drain plug gasket whenever the oil is drained, and the Nissan Electronic Parts Catalogue for the D23 lists a replaceable washer for the sump drain plug. So for a 2017 Navara, a sump-plug-washer is absolutely relevant and part of normal servicing.

What does it do? The sump-plug-washer is a soft metal crush ring (commonly aluminium or copper) that deforms slightly as the drain plug is tightened, creating a reliable seal between the plug and the sump. That tiny bit of give is what keeps oil from weeping out once everything heats up and cools down through daily driving.

On a Navara of this vintage, it’s best practice to treat the sump-plug-washer as single-use. Each time the oil is changed and the plug is removed, the washer should be replaced. Reusing an old washer can lead to seepage around the plug, little oil spots under the ute, and the annoying need to recheck the plug. Given the cost of a washer versus the price of fresh oil and time, it’s a no-brainer to fit a new one at every service.

When servicing a 2017 Navara, the simple routine looks like this:

• Remove the drain plug and discard the old sump-plug-washer.
• Wipe the plug and sump sealing surfaces clean, check for nicks or burrs.
• Fit a new, correct-spec crush washer for the D23.
• Reinstall the plug and tighten to the torque spec in the Nissan service manual.

If there’s any sign of oil misting or drips around the drain plug after a service, start by checking the washer and torque—most leaks trace back to a reused or incorrect washer. While copper and aluminium both work, stick with a quality, D23-specified washer to match the plug’s seat profile and thread size. For trade or DIY, keeping a small pack of the correct Navara sump-plug-washers on hand makes every oil change smoother and leak-free.

Popular questions about 2017 Nissan Navara sump-plug-washers

What size sump-plug-washer does a 2017 Navara use?
Most 2017 Navara D23 models use a crush washer sized to suit an M14 drain plug. The exact washer style (aluminium or copper) and profile can vary by engine variant, so it’s wise to confirm against the VIN or the Nissan parts listing. If in doubt, match the new washer to the old one for diameter and thickness, or ask for a D23/NP300 oil drain plug washer.

How often should the sump-plug-washer be replaced?
Replace it at every oil change. The washer is designed to deform once to make a proper seal. Reusing it risks a slow weep and the hassle of a re-do. Given the low cost, it’s standard practice to fit a fresh one each time the drain plug comes out.

Can the old washer be reused in a pinch?
It’s not recommended. A reused washer may not crush evenly again, which can lead to leaks. If caught out, keep a close eye for any oil around the plug after the service and replace the washer as soon as possible. Best approach: keep a couple of correct-spec Navara washers in the service kit.