D4 7U fan belt

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power stroke 99

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I bought a new fan belt from cat, I figured might as well change it since everything was tore apart...........well the belt says 1 1/16 wide x 50" long.......it will not fit........it is to short by like an inch.......part number is 4F7956....Is this the correct belt?

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Tue, Oct 13, 2009 6:58 AM

Old Magnet

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Depends on what pump pulley set up you have with your mix and match.
I don't have the belt dimensions but 7U prior to sr. # 27284 has different fan hub and ring (uses the 4F7956 belt) then the later ring and hub that uses the 5H4239 belt.

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Tue, Oct 13, 2009 9:12 AM

power stroke 99

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Reply to Old Magnet:

Depends on what pump pulley set up you have with your mix and match.
I don't have the belt dimensions but 7U prior to sr. # 27284 has different fan hub and ring (uses the 4F7956 belt) then the later ring and hub that uses the 5H4239 belt.

[quote="Old Magnet"]Depends on what pump pulley set up you have with your mix and match.
I don't have the belt dimensions but 7U prior to sr. # 27284 has different fan hub and ring (uses the 4F7956 belt) then the later ring and hub that uses the 5H4239 belt.[/quote]

Ok.....thanks.......I ended up using my old belt for now.

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Tue, Oct 13, 2009 9:24 AM

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