[xinu]

I have a couple of leftover oil filters from a previous Honda quad probably a TRX500FE and both look identical to the TRX700 OEM filter I just picked up from a dealer (different part numbers obviously). I can't see any physical difference between them.

Would you risk using a oil filter with a different part number but looks the same or should forget about the using the old ones?

 

[Baxter]

The TRX 500FE filter and 700x are near enough the same . The TRX500FE is filter is 2mm wider on the outside diameter of the filter.
Best way to check is go to an aftermarket filter maker and look up both. Simples.

700xx filter
http://www.knfilters.com/search/product.aspx?Prod=KN-112

500FE
http://www.knfilters.com/search/product.aspx?Prod=KN-113

 

[xinu]

That says it all. Thanks for the info. Obviously eyeballing it the difference doesn't cut it. Need to dig out the calipers.