The BMW

BMW

Bayerische Motoren Werke AG is a German automobile, motorcycle and engine manufacturing company founded in 1916. It also owns and produces the Mini marque, and is the parent company of Rolls-Royce Motor Cars. BMW produces motorcycles under BMW Motorrad and Husqvarna brands...

 M21 was a 2.4 L diesel

Diesel engine

A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber...

 straight-6

Straight-6

The straight-six engine or inline-six engine is a six-cylinder internal combustion engine with all six cylinders mounted in a straight line along the crankcase...

 engine.

It was introduced in 1983 with the BMW M20

BMW M20

The M20 is an inline-6 piston engine by BMW.Initially designated M60, the 12-valve, belt driven SOHC design was introduced in the 1977 BMW 520/6 and 320/6 as an entirely new design. With displacements ranging from 2.0 to 2.7 liters, it was the "little brother" to the larger BMW M30 engine. It had ...

 design as its basis. It was available with a turbocharger.
It was also the last diesel sold in the North American market in the E28 before the reintroduction of a diesel by BMW in the North American market E90 in 2009, the BMW M57

BMW M57

The BMW M57 is a straight-6 diesel engine produced from 1998. It won the "2.5–3 L" category of the International Engine of the Year award for 1999 through 2002. The downgraded twin-turbocharger version won that same award in 2005 and 2006...

Models

Engine	Displacement	Power	Torque	Redline	Year
M21D24	2.4 L (2443 cc/149 in³)	85 kW (114 hp) @ 4800	210 N·m (155 ft·lbf) @ 2400	5350	1983
		85 kW (114 hp) @ 4800	220 N·m (162 ft·lbf) @ 2400	5350	1983
		63 kW (84 hp) @ 4600	152 N·m (112 ft·lbf) @ 2500	5150	1985

Applications:

• 1986-1992 E28
  BMW E28
  The BMW E28 BMW 5-Series was made between 1981 and 1988. It replaced the BMW E12 in 1981 and was replaced by the BMW E34 in 1989.E28 Production started in July 1981 and ended in December 1987...
  
   524d/524td
• 1985-1993 E30
  BMW E30
  The BMW E30 was a compact executive car produced by BMW. It was replaced by the BMW E36 in 1990. BMW continued to produce the cabriolet E30 well into 1993. The Touring remained in production until 1994 when the E36 touring replaced it...
  
   324d/324td
• 1984-1985 Lincoln Continental Mark VII
• 1984-1985 Lincoln Continental
• 1986-1987 Vixen 21 TD and Vixen 21 XC
  Vixen (RV)
  The Vixen was a recreational vehicle designed by Bill Collins and built from 1986 until 1989. A total of 578 Vixen motorhomes of three different types were built: the Vixen 21 TD , Vixen 21 SE , and Vixen 21 XC ....
  
  
• 1992 UMM Alter II
  UMM Alter II
  UMM Alter II Phase IIn 1986 the Alter II was released by the Portuguese automobile manufacturer União Metalo-Mecânica . It featured a new 4-speed manual gearbox, a new transfer case and a new suspension. The engine remained the same 2.5-litre diesel engine which developed 76 PS...
  
  (Very rare UMM model, only 4 were made)