went to look at a 87 diesel wagon last night.much to my surprise found it had an engine swap from a 92 126.this is a mechanics car everything but the a/c was working.several small rust spots near the wheel wells.mileage on engine approx100kkms.any comments,advice?

Do a search in the diesel forum on "rod bender." If the swap was done right it could be a real nice car.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

The 126 was not offered in 1992 in the US or Canada.

I'm not sure where the engine number is but it should begin with 603.970 if someone isn't pulling your leg.

Sixto
95 S420
87 300SDL

the vendor may have said the engine came from a 91 350sd.the original motor apparently burned out due to leaky injectors diluting the oil.the car runs great smooth and quiet with power.this is a mechanics car and the work under the hood looked factory.i was impressed but ive heard the horror stories about this engine

The easiest though not throughly reliable way to distinguish a 603.96 from a 603.97 is by the oil pan. The 603.96 has a separate chamber of the oil pan extending to the exhaust side of the engine. The 603.97 has a one piece oil pan.

How does it run?

Sixto
95 S420
87 300SDL

the car runs great.no smoke under heavy acceleration,idle is super smooth no blowby from oil filler cap