DJ Rock OP3104 Engine Oil Pump

Engine Oil Pump for GM V8 Applications

The DJ Rock OP3104 engine oil pump is a premium gear-style replacement built for consistent oil circulation under pressure. It is designed for GM truck, SUV, and performance applications that require a standard-volume, standard-pressure pump with a 3/4 inlet configuration.

With a cast iron housing, drive shaft operation, and integrated pressure relief control, this pump supports stable lubrication in demanding street and work-truck use. The OP3104 is a direct-fit option for many Chevrolet and GMC models, including Silverado 1500, Sierra 1500, Tahoe, Yukon, Blazer, and Camaro applications.

Key Features

• Premium engine oil pump for standard-volume lubrication systems
• Gear-type design for steady oil delivery
• Cast iron housing for strength and dimensional stability
• Drive shaft driven configuration
• Standard pressure output
• 2 mounting holes
• No gasket or seal included
• Cross-references Sealed Power 224-43469 and M155 for the same application

Detailed Description

Part number OP3104 is engineered to circulate oil throughout the engine so rotating and sliding components receive the lubrication they need. The cast iron housing helps resist warping under heat, while the gear-style pumping element is built for precise oil movement and long service life. A pressure relief valve is included to regulate oil pressure during cold starts and higher engine speeds.

This oil pump is a strong match for a wide range of GM platforms, including 1999-2013 Chevrolet Silverado 1500, 1999-2013 GMC Sierra 1500, 1995-2000 Chevrolet Tahoe, 1992-2000 GMC Yukon, 1987-1997 Chevrolet Camaro, and 1987-1997 Pontiac Firebird. It also fits many Express, Savana, Blazer, S10, Sonoma, Suburban, and full-size truck applications with the specified 3/4 inlet and standard-volume setup.

What This Part Helps Address

• Low oil pressure caused by a worn pump
• Inconsistent oil circulation at idle or under load
• Excessive engine wear from reduced lubrication
• Oil pressure fluctuation during cold starts
• Noise or damage related to oil starvation

Installation Notes and Tips

Verify engine configuration, inlet size, and standard-volume requirements before installation. This pump does not include a gasket or seal, so those components must be sourced separately. Prime the pump before startup and inspect the oil pickup, pan, and related lubrication components during service.

Compatible With 1981-2014 Chevrolet and GMC applications listed in the fitment data, including Silverado 1500, Sierra 1500, Tahoe, Yukon, Blazer, Camaro, Firebird, Express, Savana, S10, Sonoma, and related GM truck and SUV platforms.

Quality Assurance

DJ Rock OP3104 is manufactured to meet or exceed OEM quality standards using durable materials and precision internal components for reliable lubrication performance.