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frogman
Guest
hey, anybody out there that can tell me the # for the o7 k-9 filter?
k&n 170(c)
BigDognSoCal
Active Member
sorry...thinking Air
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frogman
Guest
thank you, as I'm having trouble getting the bike to a dealer. Is that
a chrome oil filter?
a chrome oil filter?
Yes, thats what the (C) stands for.
You can get them about anywhere not just your dealer.
BigDogBro1
Made in the USA
K&N Chrome with end nut for Evo engine - KN171C It's much easier to remove with a socket wrench.
Don't forget to pull the crank sensor before you spin off the filter.
Don't forget to pull the crank sensor before you spin off the filter.
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ptcs
Member
Why pull the crank sensor??? i am about to do my first oil change on my 04 Riedgback and did not know about this crank sensor thing..Thanks in advanceK&N Chrome with end nut for Evo engine - KN171C It's much easier to remove with a socket wrench.
Don't forget to pull the crank sensor before you spin off the filter.
With the K&Ns and other onger filter you have to remove the crank sensor cause its in the way for removal and installation. you can try to do the K&N swap w/o pulling the filter but you won't get far.
http://www.bigdogbiker.com/forums/how/10-how-service-your-big-dog.html#post42
http://www.bigdogbiker.com/forums/how/10-how-service-your-big-dog.html#post42
ptcs
Member
Only 05 and newer have the crank sensor. Earlier modols used the cam instead.thanks Chris...I live and learn!!!
Here is a link to a group buy that's been done a few times but seems to have dried up. The link to the filter website is there and it lists lots of dealers you can go through. You'll like the filter and one good think is you won't have to remove the crank sensor to remove and clean the filter.
BBD... just noticed you put up 171... that is NOT the correct filter. That is the twin cam filter.K&N Chrome with end nut for Evo engine - KN171C It's much easier to remove with a socket wrench.
Don't forget to pull the crank sensor before you spin off the filter.
BigDogBro1
Made in the USA
Evolution style V-twin engines on BDM -
OK - Just got off the phone with both S&S Cycle and K&N filter companies technical staff.
K&N says the only difference between the KN170-C and the KN171-C is that the KN170 type has NO anti-drainback valve in it. The filter elements are about 20 micron in both and claim High-flow. Both have a welded on removal nut for easy removal.
S&S says they recommend using either a Harley EVO filter or a S&S EVO filter, both having 30 micron elements in them for better flow rate. The P/N's for the S&S chrome oil filter is 31-4102 (no drainback valve) or for a HD filter is 63796-77A.
S&S said that if you run anything less than a 25 micron filter element the oil return path through the filter can become restricted due to element clogging and will cause a build-up of oil in the sump that can puke out the breather hose. The EVO style engines run a lower oil pump pressure. They also said an anti-drainback valve is NOT REQUIRED.
So there you go!
KN170 or KN171 (C=chrome) KN170 would be a good choice as well.
Like I tell my engineers - Without data, your're just another opinion.
Hope this clears up all the "What filter do I use" mystery.
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BubbleHead
Big Dog Biker test account
HEY Gas, that wasn't me.
I think that was 07BigDog or BigDogBro1
I use S&S part number 31-4102 and only 31-4102