Caterpillar 8L-2777 FKM O-Ring Seal – 0.424" ID x 0.103" Cross Section

Keep your Caterpillar engine or equipment properly sealed with the Caterpillar 8L-2777 O-Ring Seal. This high-quality 75A FKM (fluoroelastomer) O-ring is designed to provide a dependable seal in demanding applications involving petroleum-based fluids, lubricants, heat, and pressure.

The 8L-2777 is used in various Caterpillar engines and equipment and is specifically identified as an O-ring seal for the unit injector rocker arm, helping prevent fuel or oil leakage. Its precision dimensions help ensure proper fitment and sealing performance.

Product Features

• Genuine Caterpillar part number 8L-2777
• FKM / fluoroelastomer construction
• 75A hardness
• Inside diameter: 0.424 in.
• Cross-section diameter: 0.103 in.
• Designed for demanding fluid, temperature, and pressure conditions
• Helps prevent leaks and contamination
• Suitable for a wide range of Caterpillar engine and equipment applications

Cross References

• Interstate McBee: M-8L2777
• PAI: 321287
• Reliance Power Products: H8L2777

Fitment: Please verify part number and application before ordering.