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Primary clutch spring

1Mike900

Well-known member
Premium Member
Dec 5, 2007
996
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Bellevue, Wa
I have a titanium clutch spring #0646-379 and it looks to be for a M7? It is brand new but was told it was for a KK. Does anyone know the spring rates of these two springs? Has anyone tried one of these on the KK?

Thanks Mike
 

vdo1948

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Lifetime Membership
Nov 26, 2007
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Eastern South Dakota
Arctic Cat parts lookup shows that spring being used in M sleds from 2005 through 2009. The 2004/5/6 King uses 0646-373 spring (titanium yellow). The 373 is rated by Cat at 114/267. The 379 is rated by Cat at 122/285. This is based on info on the Arctic Cat Parts Lookup Web page and threads here on Snowest.
 

1Mike900

Well-known member
Premium Member
Dec 5, 2007
996
169
43
Bellevue, Wa
Thankyou, I would have thought it was weaker due to the fact that the M7 takes a lighter weight, but then again it does spin at roughly 800 more RPM. May be worth trying? Thanks Mike
 
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