Late WD or Early WD 45?
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=194908
Printed Date: 07 Jun 2025 at 4:54pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Late WD or Early WD 45?
Posted By: DrPepprman
Subject: Late WD or Early WD 45?
Date Posted: 30 Apr 2023 at 10:21pm
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Hello, and I am new here. Just bought a Allis Chalmers tractor at auction this weekend and have an identity question about "Who it is?". The serial number on the rear drive has 155624. From what I have found on here is it can be a late model WD, or early model WD 45. It has WD45 stickers on the front, but has the engine plate like a WD on the right side. My question is, "Is there any other signs to tell it's identify"? Thanks in advance, Adam  |
Replies:
Posted By: TramwayGuy
Date Posted: 30 Apr 2023 at 10:25pm
| Serial number indicates an early model WD45. But without further investigation, there’s no way to tell whether the engine is a 201 (WD) engine or a WD block with WD45 internals, as the blocks are completely interchangeable. |
Posted By: DrAllis
Date Posted: 01 May 2023 at 6:01am
| S/n 146,607 was the first WD-45 tractor chassis, which would have been in mid-1953. S/n 160,386 was the first 1954 model WD-45. It's not a late model WD as per the serial number. If it has a WD engine or engine block, that was installed sometime in its past. The serial number for the engine is behind the carburetor air hose. The original engine would have said 45-XXXXXX-G. Your engine will say W-XXXXXX- G or K. |
Posted By: DSeries4
Date Posted: 01 May 2023 at 5:03pm
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Early 45 replaced with a WD engine at some point in its 60+ years of existence. ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Posted By: AC720Man
Date Posted: 01 May 2023 at 6:50pm
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Straight or curved shifter out of curiosity? ------------- 1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD |
Posted By: DrAllis
Date Posted: 01 May 2023 at 7:29pm
| Curved gearshift (helical gear/constant mesh transmission) occurred at approx s/n 127,000. |
Posted By: Dennis J OPKs
Date Posted: 01 May 2023 at 8:02pm
| Had neighbor with a late model curved shifter WD. He bought it new & didn't keep stuff very long. Shifted only using the hand clutch, would not want to see the guts of that transmission. Could explain it if he was a Deere guy but he wasn't. (Ford) |
Posted By: DrPepprman
Date Posted: 01 May 2023 at 8:08pm
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Thanks for all of this information. It does have curved gear shifter. It also has a #'W111282K' underneath carb air hose. Looks like I got cheated a bit. Oh well, starts and runs. Did sputter a bit, but found first sparkplug wire broke and not running on all four cylinders. Is there a favorite site y'all frequent to purchase pieces and parts? I figure a little tune-up, paint, and this wf WD/WD45 mix will work for my garden duties. Thanks again y'all for the info. Adam
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Posted By: SteveM C/IL
Date Posted: 01 May 2023 at 10:31pm
May not be as bad as you believe. My dad's original 49WD and my 56 WD45 have been shifted with hand clutch only after a little warm up. The WD since 49 and the 45 since 81. No teeth raking while doing so. Left leg is riding on the step late.
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Dennis J OPKs wrote:Posted By: dr p
Date Posted: 02 May 2023 at 6:28am
| Do you have to use an adapter plate between the the block and transmission if you put a 201 in a wd45? |
Posted By: truckerfarmer
Date Posted: 02 May 2023 at 6:44am
A clutch is a clutch. Doesn't matter how it is engaged. The hand clutch disengages the transmission. That's what the hand clutch was designed for. ------------- 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: Mikez
Date Posted: 02 May 2023 at 6:49am
| Welcome to the forum |
Posted By: IBWD MIke
Date Posted: 02 May 2023 at 7:12am
No, direct bolt-in.
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Posted By: dr p
Date Posted: 02 May 2023 at 2:00pm
| I ask because at a junk sale I saw a wd 45 sell and there was a plate between the block and transmission. A know it all said it was a wd block and you needed an adapter plate but I didn't think that made sense. |
Posted By: DrAllis
Date Posted: 02 May 2023 at 2:09pm
| WD-45 DIESELS had a 3/8" or 1/2" thick adapter plate, but not the gas engines. |
Posted By: AC720Man
Date Posted: 02 May 2023 at 7:03pm
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The curved shifter question was based on whether it was a cobbled together WD/WD45. ------------- 1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD |
Posted By: Dusty MI
Date Posted: 02 May 2023 at 7:45pm
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My dad bought one of the last WD's, except for the engine it was just like the WD-45, even the curved shift lever. ------------- 917 H, '48 G, '65 D-10 series III "Allis Express" |