158 6V-6609 Caterpillar O-ring ? Genuine NEW #158 NEW/OEM Quantity: 1 (Sold Individually / Price Is Per Each) Manufacturer: Caterpillar CAT Condition: Excellent New Part Number: 6V-6609 purple Applications: Ebullient cooled engine cooling systems Coating: PTFE - Polytetrafluoroethylene Compatible With: Alcohols; Automotive brake fluids; Hot, cold water; Ketones; Ozone and sunlight; Phosphate ester fluids; Silicone fluids; Some dilute acids; Steam (200 Degree C max); Steam (400 Degree F max) Cross Section Diameter (in): 0.09 Dash Size (in): 908 Inside Diameter (in): 0.64 Material: EPDM (70), EPDM - Ethylene Propylene Diene Modified Material Description: EPDM provides excellent performance in Coolant/Urea applications, and also works well in Air. Do not use in Engine Oil, Diesel Fuel, Hydraulic Oil, Automatic Transmission Fluid or Biodiesel. It has good abrasion and cut resistance. Not Compatible With: Aromatic fuels; Diester lubricants; Petroleum fluids Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image. Primary Sealing Material: Rubber Seal/O-Ring Type: Standard Temperature (F): -67 ? 275