The Used Mercedes-Benz OM604 Diesel Engine was Mercedes’ inline-four diesel built between 1993 and 1998, fitted to the W202 C-Class and W210 E-Class as the OM604 D20 (2.0L) or OM604 D22 (2.2L). It replaced the older SOHC OM601 and brought a notable engineering first with it: a DOHC, four-valve-per-cylinder head, a design detail no other passenger diesel had offered before it.
This unit is sold used, pulled with an odometer reading of approximately 20,150 miles at time of removal (placeholder mileage, to be confirmed with actual documentation before this listing goes live). It shares its cast-iron block and aluminum head construction with the rest of the OM60x diesel family, giving it the same long-service reputation the lineup is known for. One detail worth noting for buyers: unlike the Bosch-equipped OM605 and OM606, the OM604 uses a Lucas electronically controlled distributor injection pump, and its seals are a known wear item that can dry out and leak with age, so it’s worth factoring into any pre-install inspection.
| Spec | Detail |
|---|---|
| Engine Code | Mercedes-Benz OM604 (D20 / D22) |
| Configuration | Naturally aspirated inline-4 diesel |
| Displacement | 2.0L (1,997 cc) or 2.2L (2,155 cc) |
| Cylinder Block | Cast iron |
| Cylinder Head | Aluminum, DOHC, 16-valve (4 valves per cylinder) |
| Bore x Stroke | 87mm x 84mm (2.0L) or 89mm x 86.6mm (2.2L) |
| Compression Ratio | 22.0:1 |
| Fuel System | Indirect injection, Lucas EPIC electronically controlled distributor pump |
| Power Output | 74 to 94 hp (55 to 70 kW), depending on displacement and market |
| Torque Output | 100 to 111 lb-ft (135 to 150 Nm), depending on displacement |
| Production Years | 1993 to 1998 |
| Common Applications | W202 C-Class, W210 E-Class |
| Condition | Used |
| Odometer Reading | Approximately 20,150 miles |
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