BMW M21

BMW M21 engine

Manufacturer	BMW
Production	1983–1991
Successor	BMW M51
Configuration	Straight-6 Diesel

The BMW M21 was a 2.4 L diesel straight-6 engine.

It was introduced in 1983 with the BMW M20 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

Models

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

Applications:

• 1986-1992 E28 524d/524td
• 1985-1993 E30 324d/324td
• 1984-1985 Lincoln Continental Mark VII
• 1984-1985 Lincoln Continental
• 1986-1987 Vixen 21 TD and Vixen 21 XC
• 1992 UMM Alter II (Very rare UMM model, only 4 were made)

See also

• List of BMW engines