om603 and om606 - Mercedes-Benz Forum
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#1 (permalink) Old 03-27-2006, 04:06 PM
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om603 and om606

Hi, I am just visiting, I am normally on the gwagen forum, but I think you guys should know the answer to this question.
Are the om603 and om606 engines the same, except for their different heads? So can a 606 slot into a 603 engine bay without too much grief.
I live in Ireland and have a om617 non turbo Gwagen. I need more go and I know that later Gwagens had om603's but I am not sure as to whether an om606 would fit. Om606 engines would be easier to find here than turbo 617s
Bob
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#2 (permalink) Old 03-28-2006, 02:54 PM
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RE: om603 and om606

Can anyone offer any advise
Please
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#3 (permalink) Old 03-28-2006, 05:24 PM
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RE: om603 and om606

Sure Are Same Engines.
Heads Different - 606 - 4 valves per cylinder
603 - 2 valves per cylinder.
Everything you can do with Mercedes.
You are talking about Turbo or normal Engine?
606 have big pipe intake manifold & you need new Air Filter housing.
606 are perfect if you can use on modern way with good lubricants (Synthetic Oils.)
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#4 (permalink) Old 03-29-2006, 12:32 AM
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RE: om603 and om606

Hi Nokia
Sorry I meant normally aspirated not turbo engines.
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#5 (permalink) Old 03-29-2006, 01:08 PM
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RE: om603 and om606

Hi - no problem - what you see on photo is non turbo.
Just look for best price.
Everything can fit.
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#6 (permalink) Old 03-11-2009, 07:28 AM
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Where can you find the 603 or 606 engines here in the US? I am considering putting them in a Range Rover or Defender Land Rover.
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#7 (permalink) Old 03-11-2009, 07:36 AM
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Nokia, love the look of that genuine Mercedes battery. Nice!

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I know I can get this thing in the trunk......
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#8 (permalink) Old 03-11-2009, 07:54 AM
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Quote:
Originally Posted by bpjenks View Post
Where can you find the 603 or 606 engines here in the US? I am considering putting them in a Range Rover or Defender Land Rover.
OM603.96: '87 300D/TD (124) '86/'87 300SDL (126)
OM603.97: '90-'92 350 SDL (126) '92-'95 350SD/300SD* (140)
OM606.910: '95 E300D (124)
OM606.912: '96-'97 E300D (210)
OM606.962: '98-'99 E300D (210)




* I probably have the years and nomenclature a little mixed up, but you should avoid the OM603.97 engine, anyway.
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#9 (permalink) Old 03-11-2009, 11:18 AM
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Quote:
Originally Posted by Nokia View Post
Sure Are Same Engines.
Heads Different - 606 - 4 valves per cylinder
603 - 2 valves per cylinder.
Everything you can do with Mercedes.
You are talking about Turbo or normal Engine?
606 have big pipe intake manifold & you need new Air Filter housing.
606 are perfect if you can use on modern way with good lubricants (Synthetic Oils.)
Ok...So are you saying that a 606 engine will fit into where a 603 was? I have a 91 SDL with an engine that is toast. I don't mind spending some cash on a 606 if it will fit in, and mate to the transmission.
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#10 (permalink) Old 03-11-2009, 12:31 PM
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I've posted a thread that I'll be updating periodically with my project to install an OM606.962 in my S124. There are a number of differences between the engines and I'll be enumerating those in that thread. It is NOT a simple matter of plug n' play for this swap.
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