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  #1  
Unread 05-18-19, 12:39 AM
wslade2 wslade2 is offline
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337E alternator part numbers

looking for alternator part number for front alternator on 1970 337 E. I have cessna part number, C611502. But it looks like any number of shops and suppliers use some different numbers. In particular I have seen a cross to DOFF 10300E (Ford)? Also ES 4004 (Hartzell)? Just confirming with any experienced individuals...
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Unread 05-18-19, 05:21 PM
Kim Geyer Kim Geyer is offline
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You can use either one. I’ve used both. Air power had the best price for the doff 103
Kim
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  #3  
Unread 05-19-19, 10:37 PM
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hharney hharney is offline
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Check with T&W they are one of the biggest rebuilders out there. They may have one in stock or can rebuild yours

9291 Airport Road
Lakeview, MI 48850
Toll Free: 800-374-4855
Phone: 989-352-7220
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Herb R Harney
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Unread 06-04-19, 08:56 AM
wslade2 wslade2 is offline
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thanks for the help. also have read a service bulletin about switching to an updated coupling for the gear drive that allows the shaft to slip. looks like I have the old style, "non-slip". Former owner says this old coupler lead to rear engine failure in past.
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Unread 06-04-19, 08:04 PM
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hharney hharney is offline
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43 years and never a problem with the Alt drives
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Unread 06-14-19, 12:16 AM
wslade2 wslade2 is offline
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I ended up getting a DOFF 10300E. Many suppliers have in stock with almost no waiting. Also after reading other threads on the alternator drive, I have elected to keep the "old style" non slip alternator drive and service it with cup and cushions per service bulletin. (Don't want to later be chasing a slipping drive that reduces alternator output and causing light to go on). Prior owner cautioned though that failure of the old style caused rear engine failure on climb out; so I will remain attentive on servicing them.
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