Transaxle Washers

The dimensions of the transaxle drain/fill washers are 18mm ID x 24mm OD x 2mm thick.

SCH-I535

 

18mm ID x 24mm OD x 2mm thick.

 

Oil Pan Drain bolt washer - p/n: 90430-12031 - 12.5mm ID x 21mm OD x 2mm thick
Transaxle Drain/Fill bolt washer - p/n: 90430-18008 - 18mm ID x 24mm OD x 2mm thick

 

We just posted at the same time. His was accepted first. It happens from time to time.

The Gen III Prii eliminated the little ceramic magnet in the drain plug that was supplied in the Gen II. It gathers a lot of iron and steel worn from the gears and floats around in the fluid.

When you changed the transaxle fluid, did you find a magnetic drain plug? I didn't. | PriusChat

I made a special custom neodymium "rare earth" drain plug and easy to use hex head drain plugs, when I drained and refilled my transaxle at 13k miles.

My transaxle fluid change and NEW custom drain and fill plugs... | Page 2 | PriusChat

I'm glad I did, because NOW, I know that those particles are caught and not floating in the fluid and causing more wear on the transaxle components.

 

The last time I changed transaxle fluid I bought a couple of washers at my local Toyota dealership parts department, for $1.99 each, along with the fluid. Just tell them what you want, no need to quote part number or dimensions.

 

If you bought the Assenmacher TOY640 oil filter cartridge wrench, the 24mm or 15/16 inch hex on the drain plugs that I made are familiar to you, since the Assenmacher wrench uses the same hex socket.

 

I took the plug out after just 200 miles. There was already pieces of iron/steel dust on the magnet.

I lost about 3 ounces of fluid changing plugs, but luckily, I had enough left over from the four quarts to replace it.