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Briggs air filter

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My B-1 has been repowered with an 8 H.P. briggs. I need a new air filter for it, can't seem to find it in any of my manuals.

The filter has the B&S logo on it but thats it.

It measures 2" I.D. by about 4 1/4" O.D. by about 3 3/4" tall.

Anyone know a good part number for it? Is it supposed to have a foam prefilter? Thanks in advance.

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Briggs part number for the filter is390930 & supereceded to 393957S.

Prefilter is Briggs number 270782 & supereceded to 271794S.

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Thanks Ray, I crossed the new number for the filter and the old number for the prefilter to Napa and they have both in stock, so I can pick one up today!

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