CATEngine Parts

2y9941-2y8685 Air Brake Compressor — Cat 3306

This is an air brake compressor, a vital component of the air brake system that generates compressed air to operate the brakes. It is built to meet rigorous OEM quality standards, ensuring reliable performance and longevity over a worn or seized compressor. Operators may experience a spongy brake pedal, audible air leaks, or a failure to build sufficient air pressure for braking.

Air Brake Compressor – Part No 2y9941-2y8685 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

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.

Part TypeAir Brake Compressor
MaterialCast Iron and Steel
ApplicationAir Brake System
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing air brake compressor is often a prolonged time to build air pressure or a constant air leak sound. If ignored, the system may not achieve sufficient pressure for safe braking, leading to reduced braking effectiveness. Inadequate air pressure poses a significant risk to vehicle operation and safety.

Installation Tip

Ensure the air intake line is clean and free of obstructions before connecting it to the new compressor. Avoid overtightening the mounting bolts, which can strip the threads or damage the compressor housing.

Service Note

Always inspect and service or replace the air dryer and associated air lines when replacing the air brake compressor.