Is this cute little guy really the front main/oil pump seal?

[Kitty]

It's just over two inches, it's been a good two-three years since I've looked at one of them but I though they were a hell of a lot bigger than this. Perhaps the 240 one I did is effecting my memory.

Part number is B3C7-10-602A but it came in a lose bag inside a sealed bag, leading to even more discomfort for me such as was it re-packaged wrong, it looks a hell of a lot like an output shaft seal.

This is one of those replacement jobs where if it's not the right part my cars going to be down for a bit which is unfortunately not an option.

I've become paranoid about parts lately due to a couple of bad parts house mishaps.

[93 Pro]

That looks to be the correct seal if memory serves correctly. I know that the part number you listed is correct.

[Kitty]

This thread cross refrenced in the bottom,but didnt pop up during search for me(I used front main as parameters but tread title only apparently.) It has both the same specs as well as the same manufactur lettering. So I feel much more confident in ripping apart half my engine compartment.

[me109]

Yes that looks right. It's tiny. The rear one is much bigger.

[Mazda_Powered]

Yea it's definitely for the accessory side of the motor, and if everyone's saying crank seal, then you shouldn't worry about it being a cam seal lol

[Kitty]

Not the right seal.

Its an oem mazda supplier NDk

the part code on it hasn't given me any quick results on google but it was just a quick one.

Designation on the still attached crank seal is GR2 30 44 7 AE NDK 111


It's looks to be in-between the size of a cam seal and the current seal I have.



Best Christmas install ever.

[93 Pro]

Do you have the big nose crank?

[Kitty]

Pics for future reference.

Comparison shot of the the only two Mazda BP front main seals.




The larger one is part number B3C7-10-602A (if they have trouble tell them to take of the "A" revision letter)
Its ~51mm. My micrometer is not the best.



The smaller on is part number BP01-10-602A(Once again you might need to removed revision letter)
Its ~44mm. It is even smaller than the cam shaft seal that measures in at ~48mm. Unless of course I've managed to get screwed again which is quite possible.

I'll find out this weekend when I go to install and redo the oil pan seal. The leak has gotten to the point that I'm losing a quart every 1-2 weeks. It's like I'm driving a rotary.