Farm Equipment - Hydraulic line size

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Hydraulic line size

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=137704
Printed Date: 08 Nov 2025 at 10:41pm
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Topic: Hydraulic line size

Posted By: TimZ(TX)
Subject: Hydraulic line size
Date Posted: 24 Apr 2017 at 8:06am

I was measuring lines for my new joystick on a 185, But I forgot to check size. Does the metal line from the hydraulic pump have 3/4 NPT fittings or 1/2.

Thanks Tim

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2-B's,CA,D15,D17,160,2-185's 8010

Replies:

Posted By: Joe(TX)
Date Posted: 24 Apr 2017 at 9:08am

It looks like the line from the pump to the valve is a 5/8. It has flare to o ring fittings.

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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A

Posted By: TimZ(TX)
Date Posted: 24 Apr 2017 at 9:46am

Great, I've ordered the 10M JIC to 3/4 NPT. The 10M is 5/8 according to the tech at Surplus hydraulics. I'm taking pictures to show the whole process of adding the joystick to the 185. I'll post them if it works. I'll cry if it doesn't.

Tim

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2-B's,CA,D15,D17,160,2-185's 8010