GRACO Piston Seal (188257 SEAL, PISTON) - (SKU: 188257) Reset indicator pin and replace

Reset indicator pin and replace rupture disc after each activation

but it is engineered for durability and precise fit within the equipment

Securely seals oil reservoir

Used in GRACO pressure washers and similar equipment to monitor oil levels in the pump or crankcase

16 gpm (61 lpm)

GRACO Piston Seal (188257 SEAL, PISTON) - (SKU: 188257) Reset indicator pin and replaceThe 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