Description Genuine Sherwood 23799S-SHW – Seal Seat Assembly Replaces Sherwood 23799 The Sherwood 23799S pump shaft seal kit fits the P1732 pump per the Sherwood 17000 series technical guide. New 23799S Silicon Carbide mechanical seal – superior abrasion resistance and longer life. Standard in kits shown below. The 23799S is a direct upgrade of the 15955 mechanical seal. Forms part of Service Kits – Minor Kit 23972, Minor Kit 23973, Major Kit 23974, Major Kit 23975 Suits pumps from the following models: CATERPILLAR Engines: 3116 / 3126 / C7 / C9 CATERPILLAR Pump: 4P7168 / 170-6116 / 113-1109 / 152-8392