Caterpillar 1090077 Oil Cooler O-Ring Seal

Keep your engine's oil cooling system properly sealed with the Caterpillar 1090077 Oil Cooler O-Ring Seal. Designed for reliable sealing performance, this O-ring helps prevent oil leaks and maintain proper sealing between oil cooler components.

Manufactured from durable HNBR (Hydrogenated Nitrile) rubber, this seal is designed to withstand exposure to petroleum oils, diesel fuels, coolants, and other operating fluids. Its dependable sealing properties help protect critical engine components and maintain equipment performance.

Ideal for Caterpillar engine maintenance and repair, the 1090077 O-ring is a replacement sealing component for select CAT applications.

Product Specifications:

• Brand: Caterpillar (CAT)

• Part Number: 1090077

• Alternate Part Number: 109-0077

• Part Description: Oil Cooler O-Ring Seal

• Part Type: Engine Oil Cooler Seal

• Material: HNBR Rubber

• Material Hardness: 78A

• Inside Diameter: 3.975 inches (100.97 mm)

• Cross Section Diameter: 0.21 inches (5.33 mm)

• Condition: New

Known Applications Include:

• Caterpillar 3406B Engine

• Caterpillar 3406E Engine

• Caterpillar 3408B Engine

• Caterpillar 3126 Engine

• Caterpillar C10 Engine

• Caterpillar C12 Engine

• Caterpillar C15 Engine

Interchange / Cross Reference Numbers:

• Caterpillar: 1090077

• Interstate McBee: M-1090077

• PAI: 321278

• Dayton: 321278