Buma Stainless Steel Flat Washer, 20mm, Heavy Duty, Honda Differential Drain Plug Washer, Bag of 12

OD is a little smaller and it is a little thinner.These are 20mm IDx25.75mm ODx1.65mm thickOEM is 20mm IDx28mm ODx2.5mm thick

Great price and fast shipping!

Bought these to replace my OEM washers during a differential fluid change and transfer case oil change on my 2011 Honda Pilot. These washers are too thin (when laying flat), and the rings are too thin (inner diameter is ok, but outer diameter is too small), when compared to the OEM washers removed from the car. Not worth the risk, so I returned these. I bought the UTSAUTO set of 15 washers here on AMZN instead. Those were excellent, perfect fit (but only came with 5 of the large rings). I recommend the ATSAUTO; I don't recommend these "no name" brand from Buma.

Durable, used on a couple different projects other than what they are specified for.

I purchased these in bulk hoping to receive an equivalent part as the Honda part number it is indicated. When I was ready to use two of them, I was disappointed to see the width and thickness of these washers is not even close to the original Honda washer I was replacing. So, I decided to extend the use the original Honda washer because differential fluid is not replaced frequently anyways. Now, I have time to search for a better replacement to the original washer. These could probably be used as they are washers anyways, but these are as think as close to half the thickness and not as wide as the original Honda washer.

Great fit, no leaks 2 weeks later.

Another great maintenance item that is often overlooked. Get these and replace as recommended by the manufacturer as they are easy to install.Thanks for a simple but well made item.Do pay attention to the proper size that you are looking for. The Hondas have multiple sizes (14mm, 18mm, 20mm etc.) depending on the washer needed.

These are thinner than original