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Author Topic: How much are m129 engines worth these days?  (Read 3509 times)

Pirublues

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How much are m129 engines worth these days?
« on: February 18, 2023, 17:24:39 »
I have a running m129 and 4spd manual (132k miles) in my 67 w108 250se. Everything works as it should. I would like to sell them because I'll be swapping in a m275 + 6spd manual. But, I have no clue how much these are going for. I'm not trying to make all the money in the world but market value would be nice. I haven't seen any for sale to give me a estimate of a fair asking price.
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67 250se
80 450SEL 6.9
93 190e sportline

Benz Dr.

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Re: How much are m129 engines worth these days?
« Reply #1 on: February 18, 2023, 17:55:27 »
6 speed? What for?
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1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

Pirublues

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Re: How much are m129 engines worth these days?
« Reply #2 on: February 18, 2023, 18:10:11 »
The Mercedes 6spd that were put behind the Mercedes v6 engines (m272 for example) bolt to the v8 and v12 engine of the same era. My w108 will be getting a v12 from a 2005 cl600, I'll be using a 6 spd with it until it breaks and I get something stronger.

With that said, I want to sell the m129 and 4spd manual that's currently in my w108. I want to know what y'all think a fair price range is for this drivetrain.
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67 250se
80 450SEL 6.9
93 190e sportline

rwmastel

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Re: How much are m129 engines worth these days?
« Reply #3 on: February 18, 2023, 22:22:27 »
Quote from: Pirublues on February 18, 2023, 18:10:11
My w108 will be getting a v12 from a 2005 cl600, I'll be using a 6 spd with it...
Please make a thread in this forum, Research forum, or someplace so we can follow you on this journey!
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Rodd

Did you search the forum before asking?
2017 C43 AMG
2006 Wrangler Rubicon
1966 230SL auto "Italian"

Pirublues

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Re: How much are m129 engines worth these days?
« Reply #4 on: February 18, 2023, 23:48:22 »
I have a thread on the grassrootsmotorsports forum. But i haven't updated in awhile. My cl600 donor car hasn't arrived yet
« Last Edit: February 19, 2023, 04:52:14 by Pirublues »
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67 250se
80 450SEL 6.9
93 190e sportline

rwmastel

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Re: How much are m129 engines worth these days?
« Reply #5 on: February 19, 2023, 02:52:02 »
GrassrootsMotorsports
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Rodd

Did you search the forum before asking?
2017 C43 AMG
2006 Wrangler Rubicon
1966 230SL auto "Italian"

Pirublues

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Re: How much are m129 engines worth these days?
« Reply #6 on: February 24, 2023, 12:52:47 »
 Am I barking up the wrong tree? Can y'all point me in another direction?
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67 250se
80 450SEL 6.9
93 190e sportline

Lorsar

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Re: How much are m129 engines worth these days?
« Reply #7 on: February 24, 2023, 13:59:52 »
It's difficult to give you a price because although you say everything works as it should, it's hard to know how much wear and tear exists.  After all it's over 100k. You can check with Metric motors https://mercedesengines.net/
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Lori
1968 280SL (US)

Pirublues

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Re: How much are m129 engines worth these days?
« Reply #8 on: February 24, 2023, 14:30:43 »
Thank you. I just need to find somewhere to sell it. Im not trying to make a whole lot of money on it. More so just need the space and would hate to see it go to waste.
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67 250se
80 450SEL 6.9
93 190e sportline

Cees Klumper

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Re: How much are m129 engines worth these days?
« Reply #9 on: February 25, 2023, 14:27:38 »
I would day somewhere between $750 and $1,250 for the combo.
I bought 14 engines like yours some years ago for between $250 and $650.
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Cees Klumper
1969 Mercedes 280 SL automatic
1968 Ford Mustang 302 V8
1961 Alfa Romeo Giulietta Sprint Coupe 1600
1962 FIAT 1500S OSCA convertible
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SEB

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Re: How much are m129 engines worth these days?
« Reply #10 on: April 13, 2023, 15:36:30 »
I'm looking for a spare M129 for myself, and I'd be interested if you could help me with transport to harbor.
If it's still valid of course.
Greetings!
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Sebastian
1967 250 SL, 4 Speed, Euro spec, Tunis beige (462H),

Heckflosse

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Re: How much are m129 engines worth these days?
« Reply #11 on: May 23, 2024, 05:00:53 »
I might be looking for a good core as well; I'm in Canada though. So in line...if it's still available...
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Pirublues

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Re: How much are m129 engines worth these days?
« Reply #12 on: May 29, 2024, 22:06:06 »
Sorry I sold the engine last year.

My 250se has a 5.4 m113 v8 partially in right now.
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67 250se
80 450SEL 6.9
93 190e sportline
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