BMW M43
The BMW M43 is an SOHC four-cylinder petrol engine which was produced from 1991-2002. The M43 powered base-model cars, while higher performance models at the time were powered by the BMW M42 and BMW M44 DOHC engines. The M43 was produced at the Steyr engine plant.
| BMW M43 engine | |
|---|---|
| Overview | |
| Production | 1991–2002 |
| Layout | |
| Configuration | Inline-4 |
| Displacement | 1.6 L (1,596 cc) 1.8 L (1,796 cc) 1.9 L (1,895 cc) |
| Cylinder bore | 84 mm (3.31 in) 85 mm (3.35 in) |
| Piston stroke | 72 mm (2.83 in) 81 mm (3.19 in) 83.5 mm (3.29 in) |
| Cylinder block material | Cast iron |
| Cylinder head material | Aluminium |
| Valvetrain | SOHC |
| Combustion | |
| Fuel type | Petrol, CNG |
| Chronology | |
| Predecessor | BMW M40 |
| Successor | BMW N42 |
A version using natural-gas was produced for the E36 318i and the E34 518i.
Following the introduction of the BMW N42 engine in 2001, the M43 began to be phased out.
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