Pulley differences

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Jul 30, 2015 | 10:03 AM

#11

multihdrdr

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Joined: Oct 2011

Posts: 11,175

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From: Nor Cal

Quote:

Originally Posted by 69cj

Is that the only diff. I've seen both on ebay that look the same and the local dealer says they don't see the 37781-07 in their books but the bike needs a 40217-07. I thought harley would be a little more consistant on their part numbers, however, they are confusing me. By the way I have a 2007 flhp and the 37881-07 is tha one on it and the chrome is peeling off of the teeth.

Those numbers on the pulleys are basically Casting Part#'s. They are assigned a unique "finalized" part# (that you find in the books) upon being finished (machining, color, etc). Note that HD also uses the cast numbs for identification.

37781-07 (casting)...FLT ("Touring"...your FLHP) is indicated
40374-07 (casting)...Dyna is indicated

Differences?...since they visually appear to be the very similar...1", 66T...there might be a subtle, but important difference...maybe in the Offset. If I had both pulleys, i would measure them.

I would stick to your casting# 37781-07 (40217-07 finalized part#) and all should go well

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Last edited by multihdrdr; Jul 30, 2015 at 06:08 PM.

Aug 1, 2015 | 01:21 PM

#12

69cj

Thread Starter

Road Master

Joined: Jan 2011

Posts: 855

Likes: 6

From: Riverside, Ca.

Thank you for the reply. Yes I found a supposedly new 37781-07 take off. It is in the mail. Thanks again. Mike

Aug 1, 2015 | 07:00 PM

#13

SafetyMan

Ultimate HDF Member

Joined: Jun 2007

Posts: 7,970

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From: San Antone

Wish I would have seen this sooner.... I have one on the shelf.

https://www.hdforums.com/forum/touri...ocket-f-s.html

Aug 1, 2015 | 07:11 PM

#14

multihdrdr

Club Member

Joined: Oct 2011

Posts: 11,175

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From: Nor Cal

Quote:

Originally Posted by SafetyMan

Wish I would have seen this sooner.... I have one on the shelf.

https://www.hdforums.com/forum/touri...ocket-f-s.html

I think you're due for a bump

Aug 1, 2015 | 07:31 PM

#15

SafetyMan

Ultimate HDF Member

Joined: Jun 2007

Posts: 7,970

Likes: 85

From: San Antone

I figured it was a bastard part... no bites..

Well, I missed one 3 years later... LOL

Aug 1, 2015 | 08:19 PM

#16

multihdrdr

Club Member

Joined: Oct 2011

Posts: 11,175

Likes: 2,483

From: Nor Cal

Quote:

Originally Posted by SafetyMan

I figured it was a bastard part... no bites..

Well, I missed one 3 years later... LOL

Bastard part...Well, they kinda are...OEM on 2007 Touring ONLY. Can interchange with 2008 if someone wanted to get rid of their cush-drive

Touring
70T 1.5" then 1.125" til 2006
66T 1" in 2007 with 6spd
66T 1" BOLT-ON Cush-Drive 2008 only
68T Integral Cush-Drive 2009-later

2008 Cush-Drive below