Honda 15400-PLM-A02 - Oil Filter
Honda 15400-PLM-A02 - Oil Filter
I bought a set of five of these a while back, but they don't fit my Fit. All sites say it's the correct filter, but I couldn't screw it on more than half a turn. I used a Bosch, instead. The threads don't look messed up, so I thought I had the wrong filters, but the part number is right. I'll try a different one the next time I change the oil. I don't want to force it and mess up the threads on the engine.
Could be. I'll try another one the next time I change the oil.
Could be. I'll try another one the next time I change the oil.
Amazon.com: Honda 15400-PLM-A02 Oil Filter Case of 5 : Automotive
Amazon.com: Honda 15400-PLM-A02 Oil Filter Case of 5 : Automotive
At a bit over $11 each, those are medium-pricey oil filters. Way too expensive to be receiving counterfeits or factory defects. I would return them as defective, or at least for a partial refund if it's only the one filter.
Looks like the filter thread is supposed to be M20 x 1.5. Measuring the diameter of the thread peaks inside the hole (called the minor diameter) should be between 18.0 and 18.3 mm (~23/32"). That doesn't tell you anything about the quality of the threads (have they been formed properly, are they the proper 1.5 mm per thread, etc), but is a relatively easy measurement to make (especially if you have a digital/dial/vernier caliper) and is great ammo for the amazon refund process.
When I tried to educate myself a few years back, I found there seemed to be a lot of filter brand favoritism. There are definitely differences in quality (never buy a low-end Fram filter for instance), but I don't blame you for just going OEM. That said, a buck more per filter on Amazon will get you a Purolator Boss PBL14610 which has excellent filtration media and overall construction.
Looks like the filter thread is supposed to be M20 x 1.5. Measuring the diameter of the thread peaks inside the hole (called the minor diameter) should be between 18.0 and 18.3 mm (~23/32"). That doesn't tell you anything about the quality of the threads (have they been formed properly, are they the proper 1.5 mm per thread, etc), but is a relatively easy measurement to make (especially if you have a digital/dial/vernier caliper) and is great ammo for the amazon refund process.
When I tried to educate myself a few years back, I found there seemed to be a lot of filter brand favoritism. There are definitely differences in quality (never buy a low-end Fram filter for instance), but I don't blame you for just going OEM. That said, a buck more per filter on Amazon will get you a Purolator Boss PBL14610 which has excellent filtration media and overall construction.
At a bit over $11 each, those are medium-pricey oil filters. Way too expensive to be receiving counterfeits or factory defects. I would return them as defective, or at least for a partial refund if it's only the one filter.
Looks like the filter thread is supposed to be M20 x 1.5. Measuring the diameter of the thread peaks inside the hole (called the minor diameter) should be between 18.0 and 18.3 mm (~23/32"). That doesn't tell you anything about the quality of the threads (have they been formed properly, are they the proper 1.5 mm per thread, etc), but is a relatively easy measurement to make (especially if you have a digital/dial/vernier caliper) and is great ammo for the amazon refund process.
When I tried to educate myself a few years back, I found there seemed to be a lot of filter brand favoritism. There are definitely differences in quality (never buy a low-end Fram filter for instance), but I don't blame you for just going OEM. That said, a buck more per filter on Amazon will get you a Purolator Boss PBL14610 which has excellent filtration media and overall construction.
Looks like the filter thread is supposed to be M20 x 1.5. Measuring the diameter of the thread peaks inside the hole (called the minor diameter) should be between 18.0 and 18.3 mm (~23/32"). That doesn't tell you anything about the quality of the threads (have they been formed properly, are they the proper 1.5 mm per thread, etc), but is a relatively easy measurement to make (especially if you have a digital/dial/vernier caliper) and is great ammo for the amazon refund process.
When I tried to educate myself a few years back, I found there seemed to be a lot of filter brand favoritism. There are definitely differences in quality (never buy a low-end Fram filter for instance), but I don't blame you for just going OEM. That said, a buck more per filter on Amazon will get you a Purolator Boss PBL14610 which has excellent filtration media and overall construction.
If Walmart charges $11, imagine how much the dealer would charge. A $7 Bosche is fine.
Honda Dealer Profit.
Honda Dealer has to make money too.
They have families to feed and bills to pay like everyone else.
Get your oil filters wherever you want.
It's convenient for me to go to my local Honda Dealer for all my maintenance work for my Fit.
I've never had any problems or issues at my local Honda Dealer.
They have families to feed and bills to pay like everyone else.
Get your oil filters wherever you want.
It's convenient for me to go to my local Honda Dealer for all my maintenance work for my Fit.
I've never had any problems or issues at my local Honda Dealer.
Honda Dealer has to make money too.
They have families to feed and bills to pay like everyone else.
Get your oil filters wherever you want.
It's convenient for me to go to my local Honda Dealer for all my maintenance work for my Fit.
I've never had any problems or issues at my local Honda Dealer.
They have families to feed and bills to pay like everyone else.
Get your oil filters wherever you want.
It's convenient for me to go to my local Honda Dealer for all my maintenance work for my Fit.
I've never had any problems or issues at my local Honda Dealer.
Last edited by SilverEX15; Mar 23, 2026 at 09:12 AM.
You guys are exacerbating my oil filter neurosis. I already spend too much time watching oil filter videos on YouTube. Now this. 
I recently bought a bunch of Honda Part 15400-RTA-003 oil filters because I bought in to the idea that Mahle Tennex filters Made in Japan were gonna be the good ones, and the Honeywell/Frame Made in U.S.A. filters were gonna be not so great. I bought them from parts websites like hondapartsnow, and I bought them from Honda dealers. So far, so good.
Counterfeit oil filters? Everything about amazon.com is deeply disturbing. I'll be glad when they are no more.

I recently bought a bunch of Honda Part 15400-RTA-003 oil filters because I bought in to the idea that Mahle Tennex filters Made in Japan were gonna be the good ones, and the Honeywell/Frame Made in U.S.A. filters were gonna be not so great. I bought them from parts websites like hondapartsnow, and I bought them from Honda dealers. So far, so good.
Counterfeit oil filters? Everything about amazon.com is deeply disturbing. I'll be glad when they are no more.

'MURICA.
A few months back, we bought a 12-pack of Aquapel applicators. If you're not familiar, it's a glass treatment that comes in these plastic applicators with a glass vial inside that you crush to release the product onto the applicator's felt pad. They arrived in a thin cardboard retail packaging, in a bubble envelope. 10 out of 12 applicators had been crushed (presumably in shipping), product soaked into the cardboard. Amazon dragged their feet "contacting the seller", "waiting for response from the seller", and eventually just denied the return. I assume the seller cut & ran, Amazon didn't want to be left holding the bill, so their A-to-Z-Guarantee con disappeared.
A few months back, we bought a 12-pack of Aquapel applicators. If you're not familiar, it's a glass treatment that comes in these plastic applicators with a glass vial inside that you crush to release the product onto the applicator's felt pad. They arrived in a thin cardboard retail packaging, in a bubble envelope. 10 out of 12 applicators had been crushed (presumably in shipping), product soaked into the cardboard. Amazon dragged their feet "contacting the seller", "waiting for response from the seller", and eventually just denied the return. I assume the seller cut & ran, Amazon didn't want to be left holding the bill, so their A-to-Z-Guarantee con disappeared.
Last edited by bobski; Mar 22, 2026 at 03:54 PM.
You guys are exacerbating my oil filter neurosis. I already spend too much time watching oil filter videos on YouTube. Now this. 
I recently bought a bunch of Honda Part 15400-RTA-003 oil filters because I bought in to the idea that Mahle Tennex filters Made in Japan were gonna be the good ones, and the Honeywell/Frame Made in U.S.A. filters were gonna be not so great. I bought them from parts websites like hondapartsnow, and I bought them from Honda dealers. So far, so good.
Counterfeit oil filters? Everything about amazon.com is deeply disturbing. I'll be glad when they are no more.

I recently bought a bunch of Honda Part 15400-RTA-003 oil filters because I bought in to the idea that Mahle Tennex filters Made in Japan were gonna be the good ones, and the Honeywell/Frame Made in U.S.A. filters were gonna be not so great. I bought them from parts websites like hondapartsnow, and I bought them from Honda dealers. So far, so good.
Counterfeit oil filters? Everything about amazon.com is deeply disturbing. I'll be glad when they are no more.

'MURICA.
A few months back, we bought a 12-pack of Aquapel applicators. If you're not familiar, it's a glass treatment that comes in these plastic applicators with a glass vial inside that you crush to release the product onto the applicator's felt pad. They arrived in a thin cardboard retail packaging, in a bubble envelope. 10 out of 12 applicators had been crushed (presumably in shipping), product soaked into the cardboard. Amazon dragged their feet "contacting the seller", "waiting for response from the seller", and eventually just denied the return. I assume the seller cut & ran, Amazon didn't want to be left holding the bill, so their A-to-Z-Guarantee con disappeared.
A few months back, we bought a 12-pack of Aquapel applicators. If you're not familiar, it's a glass treatment that comes in these plastic applicators with a glass vial inside that you crush to release the product onto the applicator's felt pad. They arrived in a thin cardboard retail packaging, in a bubble envelope. 10 out of 12 applicators had been crushed (presumably in shipping), product soaked into the cardboard. Amazon dragged their feet "contacting the seller", "waiting for response from the seller", and eventually just denied the return. I assume the seller cut & ran, Amazon didn't want to be left holding the bill, so their A-to-Z-Guarantee con disappeared.
I spend a lot of money on my credit cards and they try to keep me happy so I keep spending more. They've always been helpful when I called.
Walmart was out of the filters I usually use on my Fit, so I bought the official Honda filter there for this next oil change. Apparently one of the factories that makes filters for a lot of the aftermarket brands has closed recently and there has been a lot out of stock lately. Part of the First Brands bankruptcy I guess.
Absolutely! Same part number works on lots of other Honda models, too.
Walmart was out of the filters I usually use on my Fit, so I bought the official Honda filter there for this next oil change. Apparently one of the factories that makes filters for a lot of the aftermarket brands has closed recently and there has been a lot out of stock lately. Part of the First Brands bankruptcy I guess.
Walmart was out of the filters I usually use on my Fit, so I bought the official Honda filter there for this next oil change. Apparently one of the factories that makes filters for a lot of the aftermarket brands has closed recently and there has been a lot out of stock lately. Part of the First Brands bankruptcy I guess.


