Parts for your 2004 Toyota Camry-Sump plug washers

2004 Toyota Camry sump plug washers — what they do and when to replace them

Technical sources confirm the 2004 Toyota Camry does use a sump plug washer (also called an oil drain plug gasket). Toyota’s Electronic Parts Catalogue lists a crush-type drain plug gasket, commonly referenced as Toyota Genuine Part No. 90430‑12031, for XV30 Camry engines (2AZ‑FE 2.4L and 1MZ‑FE/3MZ‑FE V6). The Toyota Repair Manual (TIS) procedure for engine oil replacement specifies fitting a new gasket to the drain plug at refit, which makes the washer both relevant and required for proper servicing.

On this Camry, the sump plug washer is a simple, single‑use aluminium crush ring that sits between the drain plug head and the sump. When the plug is tightened, the soft metal deforms to seal the mating surfaces. That crush action keeps engine oil from weeping past the threads or flange — no drips on the driveway, no mess under the car, and no sneaky air paths that can complicate oil changes.

Because it’s designed to deform, the washer should be replaced every time the sump plug is removed. Re‑using a flattened washer risks small leaks, plug over‑tightening, or damage to the sump face — none of which anyone needs. For the 2004 Camry, stick with an aluminium crush washer sized for the Toyota M12 drain plug, the genuine part number above or a quality equivalent that matches the dimensions will do the job nicely.

• Always install a fresh washer during each oil and filter change.
• Confirm the washer is the correct M12 Toyota style, avoid double‑stacking washers.
• Clean the sump sealing face and drain plug threads before refitting.
• Tighten the plug to the factory spec shown in the service manual — firm, not gorilla tight.
• Run the engine, then check for any seepage around the plug after a few minutes and again after a short drive.

Signs it’s time for attention include a faint oil halo around the plug, the odd drip after parking, or a washer that feels hard and flattened. A new crush washer costs next to nothing in Australia and New Zealand and keeps the Camry’s servicing tidy, leak‑free, and drama‑free under the bonnet.

Popular questions about 2004 Toyota Camry sump plug washers

What size sump plug washer does a 2004 Camry use?

It uses an aluminium crush washer to suit Toyota’s M12 drain plug. The commonly referenced genuine gasket is Toyota 90430‑12031. Quality aftermarket M12 aluminium crush washers made for Toyota applications also fit.

How often should the sump plug washer be replaced?

Replace it at every oil change. The washer is single‑use — it crushes once to seal. Re‑using it can lead to weeping or the need to overtighten the plug, which isn’t ideal for the sump’s sealing face.

Can a copper washer be used instead of aluminium?

Copper can work if it’s the correct size and designed as a crush washer, but Toyota specifies aluminium for this model. If using copper, ensure it’s purpose‑made, annealed if required, and check carefully for leaks after installation.