Sealed Power 224-43645 Engine Oil Pump

Sealed Power Oil Pump for GM V8 Applications

Sealed Power 224-43645 is an engine oil pump built for GM truck, SUV, and performance applications that call for standard volume and pressure. It is a direct-fit replacement for a wide range of Chevrolet, GMC, Cadillac, Pontiac, Hummer, Saab, and Buick models, including Silverado 1500, Sierra 1500, Tahoe, and Corvette applications.

Key Features

• Standard volume and pressure design for OE-style oiling performance
• Sealed Power engineering with modern materials and certified manufacturing processes
• Direct replacement for many GM LS-based engine applications
• Cross-references APDI 6012106 for the same application
• Part number 224-43645 for catalog and fitment lookup

Product Details

Sealed Power 224-43645 is an engine oil pump intended for GM vehicles that require standard volume and pressure oil delivery. The pump is listed across a broad range of Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, Chevrolet Express 3500, and Chevrolet Corvette applications, along with many other GM platforms from 1997 through 2020. This part number 224-43645 is a practical replacement choice when restoring proper oil circulation in compatible GM V8 engines.

Compatible With 2019-2020 Chevrolet Express 2500, 2019-2020 Chevrolet Express 3500, 2019 Chevrolet Silverado 2500 HD, 2019 Chevrolet Silverado 3500 HD, 2019-2020 GMC Savana 2500, 2019-2020 GMC Savana 3500, 2019 GMC Sierra 2500 HD, and 2019 GMC Sierra 3500 HD. Additional coverage includes Chevrolet Camaro, Tahoe, Suburban, Avalanche, Corvette, GMC Yukon, Cadillac Escalade, Pontiac GTO, Hummer H2, and related GM truck and performance models.

Common Reasons for Replacement

• Low oil pressure readings
• Oil circulation concerns after engine wear or rebuild work
• Noise or damage related to a worn pump assembly
• Restoration of standard-volume oiling in compatible GM engines
• Replacement during engine service on Silverado, Sierra, Tahoe, or Corvette platforms

Installation Notes and Tips

Review the vehicle-specific notes before installation. Several applications note that this pump does not include the oil pickup tube assembly, and some fitments require a cast iron block. Confirm engine configuration, pickup tube requirements, and all sealing surfaces before assembly. Proper priming and clean oil passages are important for reliable startup and oil pressure recovery.

Quality Assurance

Sealed Power parts are produced with updated designs, advanced materials, and ISO- and QS-certified manufacturing practices to meet the demands of modern engines. This helps support consistent fit and dependable oiling performance across the listed GM applications.