This is a pack of two high-pressure grease fittings, commonly known as Zerk fittings, used for lubrication points on various CAT equipment. They are designed to withstand high operating pressures and provide a secure connection for grease guns, meeting robust OEM standards for durability. A worn or damaged fitting may not accept grease, leading to lubrication starvation and premature wear of the component it serves.
Always verify with serial number before ordering.
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Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
The primary symptom of a failed grease fitting is the inability to inject grease into the component. If ignored, this leads to inadequate lubrication, increased friction, and accelerated wear on bearings or pins. The ultimate consequence is premature component failure and costly repairs.
Ensure the threaded hole is clean and free of old grease or debris before screwing in the new fitting. Avoid cross-threading by starting the fitting by hand and ensuring it turns smoothly.
Clean the surrounding area thoroughly before greasing to prevent dirt and contaminants from being forced into the component.