Parts for your 2018 Toyota Camry-Sump plug washers

2018 Toyota Camry sump plug washers — what they do and when to replace

Yes — the 2018 Toyota Camry uses a sump plug washer (also called an oil drain plug gasket). Technical sources that confirm this include Toyota’s Repair Manual for the 2018 Camry (Engine/Hybrid System – Engine Oil – Replacement), which specifies fitting a new drain plug gasket when refitting the sump plug, and the Toyota Electronic Parts Catalogue (EPC) for the 2018 XV70 Camry (A25A-FKS/FXS and 2GR-FKS), which lists a separate “Gasket, drain plug” for the engine oil pan. In many markets this is commonly an aluminium crush washer, typically catalogued as 90430-12031 (M12) or, on some variants, 90430-14016 (M14). These documents make it clear the washer is a service item designed to be replaced at oil changes.

On the 2018 Camry, the sump plug washer’s job is simple but critical: it seals the drain plug against the sump so engine oil doesn’t seep or drip once the plug is tightened to spec. Toyota specifies a soft, crush-style aluminium washer because it deforms slightly as the plug is torqued, taking up tiny imperfections in the mating faces. That’s why reusing a flattened or nicked washer can lead to weeping oil, messy undertrays, and the odd spot on the driveway.

For routine servicing, it’s good practice to replace the washer at every oil change. They’re inexpensive, and using a fresh genuine-type washer helps achieve the correct clamp load at the specified torque without over-tightening. Over-cranking the plug to “make it seal” is a fast track to a stripped thread in the alloy sump — not a fun repair. Keeping a couple of spare Camry-compatible washers in the glovebox or toolbox is a handy habit, especially if doing oils at home.

When fitting a new washer on the 2018 Camry:

• Confirm the correct washer size for the engine variant (many use M12, some use M14). Match the genuine equivalent from the EPC.
• Wipe the sump’s sealing face and the plug head clean — no old gasket material, grit, or silicone.
• Install a new washer with the plug and tighten the plug to the workshop manual torque spec, not “as tight as you can with a long bar”.
• After refill and a short run, check under the bonnet and underneath for leaks. Recheck after a few kilometres.

If there’s any sign of persistent weeping, swap in a new washer and inspect the plug and sump face for burrs. Stubborn leaks often trace back to a reused washer or a mark on the sealing surface. Sticking with the correct Toyota-style aluminium washer avoids most headaches and keeps the 2018 Camry tidy and leak-free between services.

Popular questions about 2018 Toyota Camry sump plug washers

Which sump plug washer size does a 2018 Toyota Camry use?

Most 2018 Camry models use an aluminium crush washer sized to the drain plug (commonly M12), while some variants use M14. The Toyota EPC for the XV70 lists the washer as a separate part and shows the correct size by engine. If unsure, match the washer to your engine code or read the plug size before purchase.

How often should the sump plug washer be replaced on a 2018 Camry?

Replace it at every oil change. The washer is designed to crush once to form a seal, reusing it can cause weeping. Keeping a couple of genuine-type washers on hand makes DIY servicing straightforward and avoids over-tightening the plug to chase a seal.

Can a copper or fibre washer be used instead of aluminium on a 2018 Camry?

Aluminium crush washers are what Toyota specifies and they seal very consistently at the correct torque. Quality copper can work, but it may require more clamp load. Fibre is less common on this model. If you’re not certain, stick with the genuine-style aluminium washer listed in the Toyota parts catalogue for your engine.