Sherwood Pump 22000K-SHW Neoprene Impeller Kit for Caterpillar C30 C32 Marine Engines

The Sherwood 22000K-SHW is a genuine OEM neoprene impeller kit designed for raw water seawater cooling pumps used on Caterpillar C30 and C32 marine engines. This kit directly replaces Caterpillar part number 153-9123 and is engineered to maintain consistent engine temperatures and protect against overheating — one of the leading causes of premature marine engine wear.

Sherwood's neoprene compound is formulated for excellent elasticity, allowing the impeller blades to snap back into shape reliably with every rotation. The neoprene material is rated for a maximum operating temperature of 130°F, making it well-suited for the demands of high-output marine diesel applications.

Kit Includes:

• Genuine Sherwood neoprene impeller
• O-ring
• Technical service guide

Impeller Specifications:

• Impeller Width: 4-5/16" (110mm)
• Impeller Diameter: 4-1/2" (114mm)
• Shaft Diameter: 15/16"
• Spline: 14 tooth, 30 degree
• Number of Blades: 10
• Material: Neoprene
• OEM Cross-Reference: Caterpillar 153-9123

For removal, the optional Sherwood SHR25105 impeller puller tool is available separately. As part of the Pentair family, Sherwood has been the trusted name in marine seawater pump technology since partnering with Chris-Craft in the 1920s to develop the first inboard marine seawater pumps.