Cylinder Head
Jeep Grand Cherokee / Dodge Ram 1500 / Dodge Durango / Jeep Commander / Dodge Dakota / Chrysler Aspen
| Displacement | Fuel | Cylinder | Vale | Camshaft | Year |
| 4.7 | Gasoline | 4 | 8 | 1 |
| ML NO. | OEM NO. | REF NO. |
| MLG017 | 53020801 | |
| MLG018 | 53020802 |
| Parameter | Details |
|---|---|
| Engine Code | EKG (also known as “PowerTech 4.7L”) |
| Displacement | 4.7 Liters (4,701 cc) |
| Configuration | V8 |
| Valvetrain | SOHC / 16-Valve (early) / 24-Valve (later HO) |
| Fuel System | Sequential Multi-Port Fuel Injection (MPFI) |
| Cooling System | Water-cooled |
| Compression Ratio | 9.0:1 to 9.7:1 (varies by version) |
| Horsepower | 235–310 HP (varies by version/year) |
| Torque | 295–334 lb-ft |
| Material (Block/Head) | Cast Iron Block / Aluminum Cylinder Head |
| Timing System | Timing Chain |
| Bore × Stroke | 93 mm × 86.5 mm |
| Fuel Type | Gasoline |
| First Introduced | 1999 |
| Common Vehicles | Dodge Ram 1500, Jeep Grand Cherokee, Dakota, Durango, Commander, etc. |
| Feature | Details |
|---|---|
| Material | Aluminum Alloy |
| Valves per Cylinder | 2 (Standard), 3 (High-Output versions) |
| Camshaft Type | Single Overhead Camshaft (SOHC) |
| Camshaft Drive | Timing Chain |
| Spark Plug Holes | 8 (1 per cylinder) |
| Fuel Injector Ports | Yes (Integrated for MPFI) |
| Cooling | Water jackets integrated |
| Common Part Numbers | 53020883AB, 53021616AA, 53021618AA, etc. |
| Typical Failures | Cracks between valve seats, warpage from overheating |
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