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Allis 5020 bypass hose on water pump ???

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=189469
Printed Date: 18 Dec 2025 at 7:56pm
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Topic: Allis 5020 bypass hose on water pump ???
Posted By: DougG
Subject: Allis 5020 bypass hose on water pump ???
Date Posted: 13 Jul 2022 at 5:20pm
Looked on Agco parts book at the 5020 by pass hose on the water pump - it shows it but doesnt say NLA or Avaliable ? Part number is 72097510- thought I d check for original before I couble something up ! Anyone know oif it is avaliable or a place to get this 90% 3/8 hose ? 



Replies:
Posted By: rw
Date Posted: 13 Jul 2022 at 6:15pm
NAPA used to have a paper catalog I believe called a picture book o. Donf all their preformed hoses with ID and length and line drawing illustration of the hose. The last time I needed one the counterman had one hidden back since they do not print on paper nearly what they used to. Probably going to take some snooping and meeting a person familiar with that catalog. 
Gates makes many of the hoses.
That bypass circuit is critical to circulate the coolant in the block and prevent hot spots so fix it right or you could pay a high price.
I put a new water pump on a fresh rebuild gas engine and the pump was not drilled through blocking the circuit. Scored pistons twice before we figured it out. I think it might have kept the block and head from filling with coolant also. 


Posted By: steve(ill)
Date Posted: 13 Jul 2022 at 6:55pm
dont know what leg lengths you need, but you can use this GATES NUMBER at an Auto Parts store and cut to size..




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Like them all, but love the "B"s.


Posted By: DougG
Date Posted: 13 Jul 2022 at 7:12pm
Thanks for looking but this one is short on both ends - like an inch on each end with a 90 % bend 


Posted By: steve(ill)
Date Posted: 13 Jul 2022 at 7:15pm
yea... i think the "original" part is no longer available... You will probably need to get a 90 degree bend like above and CUT TO LENGTH.


another, with only one bend... but 6 inches long

Gates 18030 HVAC Heater Hose



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Like them all, but love the "B"s.


Posted By: DougG
Date Posted: 13 Jul 2022 at 7:39pm
Ok ok , gottcha Steve , the picture kinda thu me off - but yes this is what im looking for - aftermarket, and cut to length , thanks a bunch !!!!!


Posted By: SteveM C/IL
Date Posted: 14 Jul 2022 at 11:36am
I replaced upper rad hose on F2 and 8070. Same hose....just had to cut the right amount off correct end. "One size fits all"



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