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Securely seals oil reservoir
Used in GRACO pressure washers and similar equipment to monitor oil levels in the pump or crankcase
Inspect and maintain diaphragms and valves regularly for best performance
but it is engineered for durability and precise fit within the equipment
Used for repairing and maintaining the piston sealing function in GRACO pumps and fluid handling equipment
GRACO Piston Seal (188257 SEAL, PISTON) - (SKU: 188257) Securely seals oil reservoirThe GRACO 188257 SEAL, PISTON is a replacement piston seal designed for use in specific GRACO pumps, such as the 235540 model. It is a critical sealing component that ensures proper operation and prevents fluid leakage within the pump assembly. The material is not specified in available documentation, but it is engineered for durability and compatibility with industrial fluids. Key Features: Piston Seal Designed for use in GRACO pump model 235540
