Parts for your 2018 Toyota Camry-Sump plug washers

2018 Toyota Camry sump plug washers — are they used, and what do they do?

Yes, a sump plug washer is used on the 2018 Toyota Camry. Toyota’s factory service information for the 2018 Camry (ASV70/AXVH70 series) instructs replacing the drain plug gasket whenever the engine oil is changed, and Toyota’s genuine parts catalogue lists a replaceable “Gasket, Drain Plug” for this model range (commonly the 12 mm aluminium type, e.g., Toyota part no. 90430‑12031). That makes the sump plug washer a relevant, fitted service item on a 2018 Camry.

On the Camry’s alloy sump, the sump plug washer (often called a crush washer) is the little hero that keeps engine oil where it should be—inside the engine. It’s a soft metal ring, designed to compress slightly as the drain plug is tightened. That controlled “crush” fills tiny imperfections between the plug and the sump face, creating a reliable seal without needing excessive force. It helps prevent slow weeps, oily drips on the driveway, and the mess that comes with them.

Because it’s a single-use seal, the best practice on a 2018 Toyota Camry is to replace the sump plug washer at every oil change. Reusing an old, flattened washer can lead to seepage, or tempt overtightening of the plug to stop a weep—risking damaged threads in the sump. A fresh, correct-size aluminium washer is inexpensive and saves headaches later.

Good servicing habits for Camry sump plug washers:

• Always remove the old washer, don’t stack washers or mix materials.
• Clean the sump’s sealing face and the plug head before refitting.
• Install a new quality aluminium washer that matches the Camry’s plug size (commonly 12 mm ID for this model).
• Start the plug by hand to avoid cross-threading, then tighten to the factory torque spec listed in Toyota’s repair manual—no more, no less.
• After refill, run the engine, then check around the plug for any hint of seepage.

Signs a washer needs replacing (beyond routine service) include oil mist or a halo of grime around the plug, or a washer that looks grooved, hardened, or misshapen. For owners who like doing their own maintenance, keeping a small pack of genuine or high-quality aftermarket Toyota-compatible washers on the shelf makes every oil change straightforward and leak-free.

Popular questions about 2018 Toyota Camry sump plug washers

What size sump plug washer does a 2018 Toyota Camry use?
Most 2018 Camry variants use a 12 mm aluminium crush washer on the engine oil drain plug (Toyota often supplies it as part no. 90430‑12031). As there are different engines in the range, it’s smart to confirm by VIN or with the plug in hand before buying in bulk.

How often should the sump plug washer be replaced on a 2018 Camry?
Replace it at every oil change. The washer is designed to compress once to form a perfect seal. Reusing it increases the chance of seepage, or leads to overtightening to chase a seal—neither is worth the risk.

Can a nylon or copper washer be used instead of aluminium?
Aluminium is typically specified by Toyota for this application and matches the sealing surfaces well. While quality copper washers can work, sticking with genuine-equivalent aluminium washers keeps the sealing behaviour predictable and avoids mixing materials that may require different torque to seal properly.