Construction and other equipment - Fiat Allis 645B Year & Engine type

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Fiat Allis 645B Year & Engine type

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=182450
Printed Date: 04 Nov 2025 at 6:56am
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Topic: Fiat Allis 645B Year & Engine type

Posted By: liviu_carrera
Subject: Fiat Allis 645B Year & Engine type
Date Posted: 11 Aug 2021 at 7:53am

Hi all,

We have a fiat allis 645B wheel loader which I am trying to find a parts manual for and also the year of manufacture.

My serial number is 14C06113 and I cannot find any manual for this as all of them seem to reference serial numbers starting with 11Y, 16L and 23M for the 645B.

If anyone has any info I would greatly appreciate it as I’ve spent the past few days trying to figure out how to order correct parts. I’m based in Europe and the machine has been manufacutred in England if that helps anyone or makes a difference.

Thank you!

Replies:

Posted By: TramwayGuy
Date Posted: 11 Aug 2021 at 1:58pm

Wouldn’t the 14C fall between 11Y and 16L?

It should have the 3500 Mark II engine@151 HP.

Posted By: liviu_carrera
Date Posted: 11 Aug 2021 at 2:01pm

Hi - is that the logic that the serial number follow? Thank you!

Posted By: TramwayGuy
Date Posted: 11 Aug 2021 at 2:07pm

I’m not really sure; but why not?

Posted By: CAL(KS)
Date Posted: 11 Aug 2021 at 3:28pm

I was thinking being English made it probably has an English engine and different series of parts book?

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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

Posted By: steve(ill)
Date Posted: 11 Aug 2021 at 5:03pm

I would look on the valve cover for a NAME cast in the cover / heat exchanger/ block... There also should be a steel TAG riveted to the bock somewhere..

I agree with CAL that if this is an English tractor, the probably bought motors built in England or Europe.

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

Posted By: DrAllis
Date Posted: 11 Aug 2021 at 5:14pm

Engine tags were usually on the left side of the block if you assume the flywheel is the rear like it was in a car. It's probably a 2900 (301 turbo engine) or a 3500 (426 turbo engine) with HP ratings from 120 to 155 ish.

Posted By: liviu_carrera
Date Posted: 11 Aug 2021 at 5:32pm

Thanks everybody I’ll have a look and let you know. Would be good if someone could shed some light on the serial number sequence logic.

I did try to randomly search on the internet if serial numbers with other letter exist like a 14b or a 12D but nothing comes up for a 645B loader.

Posted By: steve(ill)
Date Posted: 11 Aug 2021 at 6:24pm

I have never heard of a ALLIS factory in England that made wheel loaders... but possible.

https://contractormag.co.nz/classic-machines/allis-chalmers-645-loader/" rel="nofollow - https://contractormag.co.nz/classic-machines/allis-chalmers-645-loader/

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

Posted By: Dnoym N. S. Can.
Date Posted: 11 Aug 2021 at 7:45pm

I hope this is of some help

.minnpar has a parts manual on line

http://www.minnpar.com/manuals.aspx" rel="nofollow - https://www.minnpar.com/manuals.aspx

Go to https://www.minnpar.com/manuals2.aspx?FName=FIAT%5FALLIS%5FPARTS%5FMANUALS" rel="nofollow - FIAT_ALLIS_PARTS_MANUALS

then https://www.minnpar.com/manuals3.aspx?FName=FIAT%5FALLIS%5FPARTS%5FMANUALS&SFName=FIAT%5FALLIS%5FWHEEL%5FLOADER%5FPARTS%5FMANUALS" rel="nofollow - FIAT_ALLIS_WHEEL_LOADER_PARTS_MANUALS

And take a look

http://cdn.minnpar.com/partbooks/FIAT%5FALLIS%5FPARTS%5FMANUALS/FIAT%5FALLIS%5FWHEEL%5FLOADER%5FPARTS%5FMANUALS/FIAT%5FALLIS%5FWHEEL%5FLOADER%5FMODELS%5F645%5FB%5FPARTS%5FMANUAL%5F73073134.PDF" rel="nofollow - https://cdn.minnpar.com/partbooks/FIAT%5FALLIS%5FPARTS%5FMANUALS/FIAT%5FALLIS%5FWHEEL%5FLOADER%5FPARTS%5FMANUALS/FIAT%5FALLIS%5FWHEEL%5FLOADER%5FMODELS%5F645%5FB%

B:(- Dnoym

Posted By: Ian Beale
Date Posted: 11 Aug 2021 at 7:46pm

Allis also had a plant in Australia.

Major running gear on an AC Forty Five grader was US but our model and serial numbers don't look like anything you see on one. It took a fair bit of "It has this, it doesn't have that" to get an approximate translation.

I'd guess that might be the case with products from a UK plant. With Allis's other connections if it is a UK engine might likely be a Perkins?

Posted By: liviu_carrera
Date Posted: 12 Aug 2021 at 1:56am

Thank you Dnoym!!!!

I’ve downloaded and seen that part book probably 100 times, I’ve used it once in the past to try and find some brake cylinders, but only when I looked at it again this morning I noticed the handwritting on page 2: “14C-03501 -UP - consult Minnpar British made machines”.

Using the phrase “14C-03501”, I googled it and found an actual manual for this for sale in Germany. I ordered it so should be woth me in the following weeks. I’ve attached a screenshot I’ve taken.

Once I receive it, I’ll definately scan it and share it with anyone that wants to. Based on the handwriting as well it seems that the loader might have a 670T engine, not sure what this is.

Posted By: CAL(KS)
Date Posted: 12 Aug 2021 at 7:45am

good to hear. Clap

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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

Posted By: Coke-in-MN
Date Posted: 12 Aug 2021 at 10:37am

https://farmmanualsfast.com/products/fiat-allis-645b-wheel-loader-parts-catalog?variant=32706904850483&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_campaign=gs-2020-04-05&utm_source=google&utm_medium=smart_campaign&gclid=EAIaIQobChMIos6dyuer8gIVM2pvBB3bIgzxEAQYAyABEgLVWvD_BwE%20" rel="nofollow - https://farmmanualsfast.com/products/fiat-allis-645b-wheel-loader-parts-catalog?variant=32706904850483&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_campaign=gs-2020-04-05&utm_source=google&utm_medium=smart_campaign&gclid=EAIaIQobChMIos6dyuer8gIVM2pvBB3bIgzxEAQYAyABEgLVWvD_BwE

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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.

Posted By: Coke-in-MN
Date Posted: 12 Aug 2021 at 10:44am

https://www.google.com/search?rlz=1C1CHWA_enUS627US627&source=univ&tbm=isch&q=fiat+allis+645B+%2314C-03501+parts+manual&sa=X&ved=2ahUKEwiGrtWx6avyAhXJWc0KHfTsAK0QjJkEegQIBxAC&biw=1486&bih=782&dpr=1.25%20" rel="nofollow - https://www.google.com/search?rlz=1C1CHWA_enUS627US627&source=univ&tbm=isch&q=fiat+allis+645B+%2314C-03501+parts+manual&sa=X&ved=2ahUKEwiGrtWx6avyAhXJWc0KHfTsAK0QjJkEegQIBxAC&biw=1486&bih=782&dpr=1.25

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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.

Posted By: Eric B
Date Posted: 20 Aug 2021 at 9:18pm

I don't know if you have found out the make of your engine yet but what I do know about the the earlier Allis Chalmers loaders made in England, such as TL 14, TL 16 etc, came with the British AEC diesels. I don't know, however, when or if they may have switched to use the US made Allis engines. In Sweden back in the 60's we had both US and British import loaders. Essentially, the engine was the only real difference between the two.

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Currently- WD,WC,3WF's,2 D14's B. Previously- I 600,TL745,200,FL9,FR12,H3,816 LBH. Earth has no sorrow that Heaven cannot heal!

Posted By: liviu_carrera
Date Posted: 27 Sep 2021 at 1:32pm

Hi all, small update. I did manage to buy 2x parts manuals for the 645B serial numbers starting with 14C. Also, minne has had an iveco engine repower, tag on it says it’s a 8361.05 non turbo engine (the guide said it should have a 8365.25 turbo engine but seems mine doesn’t).I have bought the manual and instructions for the Iveco repower guide. If anybody ever needs them please message me and I will send them.

thank you,
Liviu