Replying to Thread:

Is it really a F3-6L912/W??????

Created On Tuesday 20, December, 2011 12:28 PM by GTBEngineer

Please enter your login information to post.
I want to stay logged in.

Message Title:

Message Text:
bold italic underline
 http link
 https secure link
 ftp ftp link
 mail email link
 LI   Quote  ordered list unordered list

HTML code is not permitted. Special symbols permit some HTML functionality.

Diesel Talk Forum

Diesel Talk Forum
Posts: 3
Joined: Dec 2011

Note Tuesday December 20, 2011 12:28 View thread in raw text format
Diesel Talk

I am an engineer for a tugboat company in the states and while taking over for the guy that just retired, I have stumbled across a deutz engine behind the shop in the weeds wrapped up. I have pulled it out and found it is also mounted to a big 8 inch pump on a trailer. I could not find a data plate except for a little sticker that does say it is a F3-6L912/W. My question is, is it really a F3-6L912/W? It is air cooled which I guess is common since most Duetz engines I have seen on the internet, but the 6L throws me off. It is a 3 cylinder diesel and I have seen pictures of a F3-6L912 but they were not 3 cylinder diesels, some of them looked to be 4 Cylinders. I am use to Perkins, EMD's, Cats, and Detroits with how they classify their engines but I can not find any information around the shop for this Duetz. I would love to rebuild it and attach a generator to it for a type of emergency generator for the tugs but I guess the first step is to figure out what it really is. The stamp on the block is 21357158 (serial number?) but there is another 4 numbers stamped under it which is 2641. Any information on how to go about looking for more information or anyone that can help tell me about it would be greatly appreciated. Like I said I am just looking to figure out what it really is. Thank you all!


A fleet engineer for a tugboat company in Detroit, MI
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Diesel Talk Forum

Diesel Talk Forum
Posts: 2
Joined: Mar 2004

Note Tuesday January 17, 2012 15:27 View thread in raw text format
Diesel Talk
Good evening. Your engine is probably an F3L912 - this range was very widely used but is out of production I believe since many years. I am sure that spare parts are still available. The 3 relates to the number of cylinders and this engine was available in 2,3,4,5,6 cylinder versions - all air cooled. The W relates to a special version (indirect injection) which was used underground and in some forklifts. 21357158 is probably not the serial number - the serial number is on a plate (sounds like yours is maybe missing) but the serial number is normally stamped elsewhere on the engine block. If you can get the spare parts and a workshop manual it is probably worth rebuilding.
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Diesel Talk Forum

Diesel Talk Forum
Posts: 5
Joined: Feb 2012

Note Thursday February 02, 2012 19:47 View thread in raw text format
Diesel Talk
i have been working in deutz engine all my life it is a 3 cylinder deutz air cooled engine what you have but the only problem is the W as thier are 3 families for this engine F , D and W and believe me the W is the trickiest and hardest one as the difference is in the combustion chamber and the length of the piston and ofcourse the ratio as it 19 :1 for the W while the other ones are 17 : 1 also thier will be difference in the length of the con rods and the engine block so my advice for you if you want to re built the engine you better check out for the spare parts you might need as it would be scarce and expensive and you might considering replacing the whole engine with a more common model

humble engineer
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum

Big Bear Engine Company
Luoyang Diron Parts Trading Co.,Ltd
Diesel Sales
Young & Sons Inc.
Select Reman Exchange LLC
Advertize on Diesel Engine Trader

Customer Testimonials


Subscribe to our mailing list to get all the latest DET well as daily or weekly notifications of new engines and spare parts listings.

'We've been selling on since June 2011. It works well for us, we get a good level of enquiries and we've sold engines all over the world!'

Jim Smith, Industrial Engines, Grimsby, UK

'Thanks, I appreciate your site very much. I just sold another engine here this week. I am glad to know there are people working to improve the site whenever possible. I am very happy to be of some service in that regard.'

Aaron Lewin, Thorp, USA

'Had an Deutz engine in our yard for 10 years then we thought - let's try listing on and it sold within 2 weeks!'

Steve Spencer, Midwest Engine Inc., Michigan, USA