A01 oil filter defects

Just saw a bulletin from Honda that some A01 filters may have a manufacturing defect where the threads are crooked. This can cause the metal housing of the filter to hit the engine block before the seal which can create an oil leak.

The affected filters have lot numbers of 7A26, 7A29, 7A30, 7A31, 7B01, 7B02, 7B03.

This only applies to the A01 filters and only those with the above lot#'s.

We haven't had the A01 filters for about 5-6 months now and the A02's don't have any that are bad.

I'm not sure when the affected lot numbers came out but Honda has gone through quite a few of the A01's since we got our last batch of them.

I'm not sure where the lot number is on the A01's, (it's been awhile since I've seen one)

-Trevor

Hey Trevor, not sure if my first set of six I had ordered last year is in this mix. What if it is what should I do?

We haven't run into any that we sold falling within those lot numbers yet. But if they are your local dealer should be able to swap them out for you or we can.

-Trevor

Thanks for posting this valuable information. Should you start a thread in the TSB section?

I had ordered a half dozen of these early last year and did not have one that matched the lot number.

The lot number is on the bottom edge of the filter printed in white.

Just a quick FYI incase you could not find it.

For those who don't know and are scared to ask. Explain A01 oil filters. Am I correct in assuming that A01 is the Honda OEM oil filter for the 2006-2007 Ridgeline? Also is the lot number posted anywhere on the filter?

Thank in advance.

The A01 is one of the Honda filters they switch back and forth between 15400-PLM-A01 and 15400-PLM-A02.

The numbers would be printed on the filter, I don't have any A01's here to take a picture of to show where it would be, however all of the lot numbers are in a similar format to the defect ones listed.

-Trevor

Here's a picture showing the lot no. location