Hydraulic Coupler Male
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=209914
Printed Date: 21 Mar 2026 at 6:13pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Hydraulic Coupler Male
Posted By: whatscooking
Subject: Hydraulic Coupler Male
Date Posted: 31 Jan 2026 at 11:26am
| Trying to rig up a guage to check pump pressure on the rear of a D21. Which type do I look for? |
Replies:
Posted By: whatscooking
Date Posted: 31 Jan 2026 at 4:28pm
| I thought one type was called pioneer, don't know what the older couplers were called. |
Posted By: DrAllis
Date Posted: 31 Jan 2026 at 5:23pm
| Balls are usually Pioneer brand. Points used to be Bruning. Your results may vary. |
Posted By: whatscooking
Date Posted: 31 Jan 2026 at 6:22pm
| So it could be either so better have both? |
Posted By: DrAllis
Date Posted: 31 Jan 2026 at 6:33pm
| After 60 years, who knows what's on some of these tractors. It could have John Deere couplers on it for all I know. |
Posted By: KJCHRIS
Date Posted: 31 Jan 2026 at 9:03pm
|
Do you have any hydraulic cylinders that are used on the D21.? I'd take 1 of those ends off its hose and use it. ------------- AC 200, CAH, AC185D bareback, AC 180D bareback, D17 III, WF. D17 Blackbar grill, NF. D15 SFW. Case 1175 CAH, Bobcat 543B, |
Posted By: steve(ill)
Date Posted: 31 Jan 2026 at 10:07pm
look at the end of the MALE piece.. does it have a BALL or a TIT on it... that tells you something...Most are interchangable, but the BALL is old style... Then take a caliper to comfirm " barrel size" of various 1/2" or 3/4" types..... couple different versions... see below... ------------- Like them all, but love the "B"s. |
Posted By: steve(ill)
Date Posted: 31 Jan 2026 at 10:16pm
|
this is what GOOGLE said....... 1/2 inch PIONEER 4000 series ..ISO 5675 Agricultural The Allis-Chalmers 180 tractor typically used 1/2-inch body, Pioneer-style agricultural hydraulic couplers (often referred to as ISO 5675 or ball-style connectors). +4
------------- Like them all, but love the "B"s. |
Posted By: MadCow
Date Posted: 31 Jan 2026 at 11:11pm
|
I've had uncommonly good luck by grabbing whatever by local TSC or Runnings had in stock. I've used poppet and ball interchangeably, for better or worse, and they've worked. I'd say unless it came from a majority green farm or looks modern, the pioneer ag coupler will work. |
Posted By: truckerfarmer
Date Posted: 01 Feb 2026 at 7:28am
|
Look on the Female coupler. Most of the time it is stamped on the ring. Knock on wood, every tractor I have bought, there was enough oil residue from normal use to keep them from getting rusty. Might have to use a wire brush to clean it up. ------------- Looking at the past to see the future. '53 WD, '53 WD45, WD snap coupler field cultivator, #53 plow,'53 HD5B dozer Duct tape.... Can't fix stupidity. But will muffle the sound of it! |
Posted By: whatscooking
Date Posted: 01 Feb 2026 at 8:13am
|
Thanks everyone,like everything else it depends |