The Enginetech EP307S is a direct-replacement engine oil pump for 2001-2007 Chevrolet/GMC 8.1L V8 OHV engines. Enginetech oil pumps are engineered to OEM flow rate and pressure specifications for the specific engine application.
Important Notes:
- Includes screen for 9.5 to 9.875 in. oil pan depth.
Specifications:
| Part Number | EP307S |
| Brand | Enginetech |
| Pump Type | Gear |
| Drive Type | Drive Shaft |
| Volume | Standard Volume |
| Pressure | Standard Pressure |
| Housing Material | Cast Iron |
| Gasket/Seal Included | No |
| Height | 4.910 in. |
| Width | 4.460 in. |
| Pickup Screen Diameter | 0.250 in. |
Cross-References: Melling:M307-307S
Vehicle Fitment: 2001-2007 Chevrolet/GMC Avalanche 2500, Silverado 2500 HD, Silverado 3500, Sierra 2500 HD, Sierra 3500, Suburban 2500, Yukon XL 2500 - 8.1L V8 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.
