Stewart 43103 Stage 4 Mechanical Water Pump for Small Block Chevy

The Stewart 43103 is a mechanical water pump designed for Small Block Chevy applications. It features a Stage 4 configuration, a 3/4-inch pilot, and a short design for applications requiring this pump style.

Built with an aluminum housing in a natural finish, this water pump is listed for 1971–1982 Corvette applications. Its mechanical operation supports the engine cooling system by circulating coolant through the engine and radiator.

The Stewart 43103 is sold as an individual water pump. Verify application and cooling-system requirements before purchase to ensure the short-design configuration and 3/4-inch pilot match the intended Small Block Chevy setup.

Features:

• Brand: Stewart
• Part Number: 43103
• Type: Mechanical water pump
• Stage: Stage 4
• Pilot: 3/4-inch pilot
• Design: Short design
• Material: Aluminum
• Finish: Natural
• Application: Small Block Chevy
• Listed Fitment: 1971–1982 Corvette
• Quantity: Each