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Belt culprit

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Old Jul 1, 2025 | 03:04 PM
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Default Belt culprit
Hello again, after play with compensator springs, ordering stock one the to findout it's Screamin Eagle upgrade. My final drive belt is my problem slippage causing the chain noise in primary. Who from or where would I get 137T belt? Recommendation would be appreciated.
 
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Old Jul 1, 2025 | 03:22 PM
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Are you saying your final drive belt is slipping? The one from the trans to the rear pulley?
Are you sure?
Is it missing teeth?
 
Last edited by MURPHCC1; Jul 1, 2025 at 03:26 PM.
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Old Jul 1, 2025 | 09:14 PM
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Yes
 
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Old Jul 2, 2025 | 05:00 AM
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Originally Posted by BRKLYN1955
. My final drive belt is my problem slippage causing the chain noise in primary. Who from or where would I get 137T belt? Recommendation would be appreciated.
I`d buy the OE belt ( $266.99 here)
Both the factory parts list and Dennis Kirk show your bike to be 139T
Not 137T
The H-D p/n is 40024-97
 
Last edited by eighteight; Jul 2, 2025 at 05:21 AM.
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Old Jul 2, 2025 | 05:56 AM
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Another vote for the factory/ OEM belt. Not a job you want to do again because you saved 20 bucks at Billy-bob's Cheap-*** Belt Company lol...you know the saying...buy once cry once.
 
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Old Jul 2, 2025 | 09:25 AM
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If your drive belt is/was slipping that badly, you should inspect both the trans pulley and the rear wheel pulley. I would suspect that one or both may need replacement too.

The Harley OEM belts are one of the things that HD does well. I would replace with OEM like others have suggested.
 
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Old Jul 2, 2025 | 09:43 AM
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Def OEM belt and NEW pulleys.......been there.
 
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Old Jul 3, 2025 | 06:02 PM
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OEM belt and make sure you don’t kink it while handling for install, the instructions warn against folding it below a certain radius to prevent damaging it.
 
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Old Jul 3, 2025 | 09:00 PM
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Originally Posted by MURPHCC1
Def OEM belt and NEW pulleys.......been there.
new pulleys? Is it a must?
 
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Old Jul 3, 2025 | 10:22 PM
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Originally Posted by BRKLYN1955
new pulleys? Is it a must?
Highly recommended to change pulleys when changing high mileage belts. Other than that, a good inspection of the pulleys will tell you what you need.
 
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