Oil Filter
Road Warrior
Joined: Feb 2009
Posts: 1,727
Likes: 11
From: TN
Mobil1/S&S make a filter that is 1/8" less in diameter than the HD filter, part # 31-4101. Much easier to get past he crank sensor plug.
I use the long K&N filter on my racin N'ster to get a little more capacity.
I use the long K&N filter on my racin N'ster to get a little more capacity.
Road Warrior
Joined: Mar 2007
Posts: 1,377
Likes: 8
From: Atlanta, GA
Like oil, oil filters also stir up the pot 
Champion Labs makes the H-D filter proprietary to their specs. Champion Labs also makes the corresponding size in a Walmart Supertech filter for $3 The Walmart filter meets H-D's oem specs. The question is do you want a $3 Walmart filter on your $20k bike?
Champion Labs makes the H-D filter proprietary to their specs. Champion Labs also makes the corresponding size in a Walmart Supertech filter for $3 The Walmart filter meets H-D's oem specs. The question is do you want a $3 Walmart filter on your $20k bike?
Seasoned HDF Member
Joined: May 2008
Posts: 20,990
Likes: 12,517
From: South Carolina
Any filter designed to work on a Harley Evo or TC will have a bypass (not talking about racing filters).
TC filters will also have an anti-drainback valve.
Evo filters don`t need to have an anti-drainback valve because the filter is in the oil return path.
TC filters will also have an anti-drainback valve.
Evo filters don`t need to have an anti-drainback valve because the filter is in the oil return path.
Outstanding HDF Member
Joined: May 2009
Posts: 2,160
Likes: 62
From: GA.
Like oil, oil filters also stir up the pot Champion Labs makes the H-D filter proprietary to their specs. Champion Labs also makes the corresponding size in a Walmart Supertech filter for $3 The Walmart filter meets H-D's oem specs. The question is do you want a $3 Walmart filter on your $20k bike?
Champion Labs makes the H-D filter proprietary to their specs. Champion Labs also makes the corresponding size in a Walmart Supertech filter for $3 The Walmart filter meets H-D's oem specs. The question is do you want a $3 Walmart filter on your $20k bike?Got a part number for that $3 filter?
