Parts for your 2010 Toyota Camry-Sump plug washers

2010 Toyota Camry sump plug washer — what it does and when to replace it

For a 2010 Toyota Camry, a sump plug washer is absolutely used and relevant. Toyota’s Repair Manual for the model year (Engine Mechanical — Lubrication section) specifies replacing the drain plug gasket whenever the engine oil is drained, and Toyota’s Electronic Parts Catalogue lists a dedicated crush-type drain plug gasket for this vehicle (commonly P/N 90430‑12031, 12 mm aluminium). That means the Camry’s sump plug is designed to seal with a washer, not a tapered, washerless design.

This little ring does a big job. The sump plug washer (often called a crush washer) sits between the sump and the head of the drain bolt. When the bolt is torqued, the soft aluminium deforms to fill microscopic gaps, creating a proper seal so oil doesn’t weep out over time. It also helps protect the alloy sump face, letting the plug reach the correct clamping force without chewing up the mating surface.

On a 2010 Toyota Camry, the washer is considered single‑use. Best practice is to replace it at every oil change or any time the drain plug is removed. Genuine Toyota gaskets or quality equivalents are fine, stick with the 12 mm aluminium type that matches the plug. Avoid stacking old washers or mixing sizes, as that can lead to drips or an over-tightened plug.

Servicing tips for the Camry’s sump plug and washer:

• Clean the sump face and plug head so the new washer beds in evenly.
• Fit one new washer only, check the old one isn’t stuck to the sump.
• Tighten the drain plug to the Toyota‑specified torque (around 39 N·m for both 4‑cyl 2AZ‑FE and V6 2GR‑FE engines). Don’t “give it a bit more for luck”.
• After refilling, run the engine, shut it down, and check for any seepage.

Signs the washer needs attention include fresh drops under the car, a faint hot‑oil whiff after a drive, or a damp area around the plug. If there’s still a leak after fitting a new washer and torquing correctly, inspect the plug threads and sump face, damaged threads may need repair.

For Aussie and Kiwi drivers, keeping a small stash of genuine‑spec washers in the shed makes DIY servicing easier and avoids last‑minute parts runs. It’s a cheap item that saves mess, protects the sump, and keeps the Camry tidy and leak‑free between services.

Popular questions about 2010 Toyota Camry sump plug washers

What size sump plug washer does a 2010 Toyota Camry use?

The 2010 Camry commonly uses a 12 mm aluminium crush washer that matches the M12 drain plug. Toyota’s parts listings often show P/N 90430‑12031 for this application. Using the correct size ensures the washer crushes properly and seals without needing excess torque.

How often should the sump plug washer be replaced on a 2010 Camry?

Replace it every time the plug comes out—typically at each oil change. Toyota’s service guidance calls for installing a new drain plug gasket at each refit to prevent seepage and to maintain the correct clamp load at the specified torque.

Can a copper washer be used instead of aluminium on a 2010 Camry?

Aluminium is the OEM style and is recommended because it reliably crushes against the Camry’s sump face. Quality copper crush washers can work in a pinch, but stick with the correct 12 mm size and verify proper sealing torque. Avoid hard flat washers that don’t deform.