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Old 13-01-2021, 10:54   #1
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4.108 or 4.203

Hello there.

My name is Alastair I'm from the UK. I do not own a boat. I'm sorry, but hold on a second don't shout me away quite yet.

I have a perkins diesel engine, and I can't identify it. I think I've narrowed it down to a 4.203 or a 4.108 and I don't know which.

Can anyone tell me how to identify it? Or tell me the differences/similarities. It leaks so much oil i need to get some gaskets.

I thought you chaps would be my best bet in helping me in my quest.

From what I understand I can't identify it from any of the engine numbers I've found cast in the block as it is or could be a pre 66 engine.


I've attached a photo of some of the numbers.

Thank you in advance
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Old 13-01-2021, 15:50   #2
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Re: 4.108 or 4.203

See the 2 Perkins number guides:
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File Type: pdf Engine_Number_Guide.pdf (202.4 KB, 6 views)
File Type: pdf engine number guide2.pdf (38.7 KB, 4 views)
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Old 13-01-2021, 15:56   #3
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Re: 4.108 or 4.203

Thank you for that.

As I mentioned none of the engine numbers i have make any sense and I believe are pre 66 thus will not help me identify my engine. I've looked and there is no 203 or 108 anywhere.
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Old 14-01-2021, 18:02   #4
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Re: 4.108 or 4.203

If it's 1966, probably a 4107. Send pictures of the whole engine and someone may be able to id it.
Email Parts4 engines. They sell lots of Perkins parts and maybe can identify it.

advice@parts4engines.com
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Old 15-01-2021, 13:24   #5
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Re: 4.108 or 4.203

Please find attached photos thank you for any help.
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Old 15-01-2021, 14:23   #6
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Re: 4.108 or 4.203

Looks like a 4203 definitely not 4108.
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Old 15-01-2021, 16:00   #7
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Re: 4.108 or 4.203

Quote:
Originally Posted by rbk View Post
Looks like a 4203 definitely not 4108.
Thank you for your help. Ahh really. What was the giveaway?
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Old 15-01-2021, 17:33   #8
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Re: 4.108 or 4.203

The valve cover, the lift pump location, starter location, injectors just about everything.
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Old 16-01-2021, 04:01   #9
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Re: 4.108 or 4.203

Thank you for your help.
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