CATEngine Parts

4b-5441 Fuel Cap — Cat 3306 3406

This is a fuel cap, designed to seal the fuel tank filler neck, preventing contamination and fuel vapor escape. It is manufactured to meet CAT OEM specifications for a secure fit and durable seal, unlike a worn or damaged cap that may not seal properly. Operators may notice fuel odors around the tank area or experience fuel system performance issues if the cap is missing or faulty.

Fuel Cap – Part No 4b-5441 – 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 TypeFuel Tank Cap
MaterialHeavy-duty plastic with rubber seal
ApplicationFuel tank filler neck
Service LifeReplace as needed based on condition
CompatibilityCAT 3306, 3406
ConditionNew — OEM specification aftermarket

Failure Symptoms

A faulty fuel cap may result in a persistent fuel odor around the machine or cause the 'Check Engine' light to illuminate due to evaporative emissions system faults. If the seal is compromised, dirt and water can enter the fuel tank, leading to fuel system contamination and potential engine performance issues. Ignoring these symptoms can lead to costly fuel system repairs and potential engine damage.

Installation Tip

Ensure the fuel tank filler neck threads are clean and free of debris before screwing on the new cap. Turn the cap until it clicks multiple times to ensure it is properly seated and sealed.

Service Note

Inspect the fuel tank filler neck for any damage or corrosion that could prevent the cap from sealing correctly.