O-Rings & Seals

O-ring and seal references identified by OEM part number and valve model. Confirm dimensions and service position before replacement.

O-ring and seal selection

Use the documented location and material

Control valves use different O-rings at the distributor tube, injector, drain, adapter, end plug, and plumbing connections. Diameter, cross-section, and material are application-specific; a visually similar seal is not proof of interchangeability.

Locate the item in the manufacturer drawing and search the complete OEM number. Follow the manual's lubricant restrictions and never use petroleum-based products where the manufacturer specifies silicone lubricant. Ask for fitment help when the seal location or valve revision is uncertain.