The head number is cast in the aluminum. It is on the left (driver's) side of the head and almost exactly under the air pipe that crosses over the valve cover. You don't need a mirror but a bright flashlight will help and hope that there's not too much oil and dirt. You have to look between the injector hard lines and see a little bit of the number, then shift your view and see a little bit more. The number should be 603 016 xx 01 where xx is the head revision number. AFAIK, the choices for "xx" are 14, 17, 20, and 22. The "603" means it was first used in the 603 engine; the "016" means it is part of the air intake system, and the "xx" means the revision number. I forget what the final 01 is and it could be some other number too.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

You may want to read this.

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1987 300TD 309, xxx 2.8.2014 10,000 mile OCI


Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous

“Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss

I have 2.
87 300D
87 300TD

Both of mine have the 14 head. The guy that sold me the 300D told me to change the belt and belt tensioner every 3 years, weather it needs it or not.
I have heeded his advice. one has about 225,000 and the other 210,000 miles.

These cars can turn on a dime. With good tires and suspension components you can make a u turn at 35 mph. These have lots of rubber bits in the suspension. If it doesnt have nice tight handling, some of these rubber bits need to be replaced. None of them are expensive, and most are not difficult to replace yourself. In the rust belt the rubber parts last a long time.

Rust is not near the issue on a 124 as it is on a 123, or some say even a 210.
Cost was not an object on building these, and the build quality is excellent.

Parts have been cheap,rebuilt starter $150, caliper $45, brake pads $30.
W210 rims bolt on for an updated look, and good tire options. Euro style Depot lights can be had on ebay for $150.

i drive mine like i stole it, every single day, and it always puts a smile on my face.

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1959 Gravely LI, 1963 Gravely L8, 1973 Gravely C12
1982 380SL
1978 450 SEL 6.9 euro restoration at 63% and climbing
1987 300 D
2005 CDI European Delivery
2006 CDI Handed down to daughter
2007 GL CDI. Wifes