The Enginetech EP251 is a direct-replacement engine oil pump for 1989-2002 Dodge 5.9L I6 Diesel OHV engines. Enginetech oil pumps are engineered to OEM flow rate and pressure specifications for the specific engine application.
Specifications:
| Part Number | EP251 |
| Brand | Enginetech |
| Pump Type | Gear |
| Drive Type | Drive Shaft |
| Volume | Standard Volume |
| Pressure | Standard Pressure |
| Housing Material | Cast Iron |
| Gasket/Seal Included | No |
| Height | 3.410 in. |
| Width | 5.280 in. |
| Pickup Screen Diameter | 0.315 in. |
Cross-References: Melling:M251
Vehicle Fitment: 1989-2002 Dodge D250, D350, Ram 2500, Ram 3500, W250, W350 - 5.9L I6 Diesel OHV
Enginetech oil pumps are 100% cycle tested for both volume and pressure before leaving the factory, ensuring consistent lubrication performance from the moment of first start. Each pump is engineered to meet or exceed OEM flow rate and pressure specifications for the specific engine application - not a generic substitute. Enginetech offers complementary components including pickup screens, oil pump shafts, and repair kits to complete the lubrication system service. Always prime the oil pump before installation and verify the correct pickup tube fitment for your oil pan configuration. Incorrect oil pressure can cause accelerated bearing wear and premature engine failure - verify part fitment by year, make, model, and engine displacement before ordering.
