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Old 02-05-2019, 08:49 PM   #1
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MT643 Fluid Capacity

1994 Blue Bird All American headed for Haiti. Want to do a fluid and external filter change. Any insight as to how much fluid I should plan for? Went to Allison's web site but didn't have any luck. Thanks.
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Old 02-06-2019, 06:12 AM   #2
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Year: 1996
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Engine: T444E 7.3L
I am guessing 12-16 quarts.
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Old 02-06-2019, 06:24 AM   #3
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Johnny should be just about right for a drain / refill.



a completely Dry 643 will hold just about 5 gallons.. thats including the cooler loops and dry external filters.. (and with the deep pan).. if the dipstick goes into the side of the pan you have the deep pan..



-Christopher
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Old 02-07-2019, 09:47 AM   #4
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Year: 1996
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Chassis: International
Engine: T444E 7.3L
The drain and fill/filter change should be similar to my AT545....

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