Description 2S4080 is a nonmetallic fiber gasket historically used for raw water pump mounting on Caterpillar marine and industrial engines, notably C18, 3406-series, 3176, C-15, and C-16 families. This gasket appears in multiple OEM gasket kits covering flywheel housing, rear cover, powertrain oil system, supplemental and transmission pump applications. Suits mounting of Sherwood Water Pumps G2902X, G2904X Raw water pump gasket (2S4080) suit CAT C18/3406/3176/C-15/C-16 engines Cross-ref for 2S4080: 2S-4080, 2K4472, 8M4447, 1S5772, 8H4332, 9L1777, 143335, 144-6142, 1446142, 6566Y, M-1446142, PAI 331211 Raw water pump assemblies using this gasket: 7L-4197 (Raw Water Pump Assembly) 131-8271 (Pump GP Auxiliary Sea Water) 194-2450 (Pump GP Auxiliary Sea Water) Gasket kits including 2S4080: 364-8129 (Flywheel Housing) 234-0315 (Rear Cover) 6V-7251 (Powertrain Oil System) 8M-2139 (Supplemental Kit) 114-4800 (Transmission Pump)