CATCab & Body Parts

5089603 Door Lock Assembly — Cat DX140LC DX180LC

This door lock assembly ensures the security and integrity of the operator's cab, preventing unauthorized access and protecting internal components. Manufactured to meet CAT's stringent quality and durability standards, it provides reliable locking functionality superior to a worn or malfunctioning assembly. Operators may find the door difficult to open or close, or experience issues with the lock mechanism failing to engage when this assembly is faulty.

Door Lock Assembly – Part No 5089603 – CAT Spare Part
Part Specifications
BrandCAT
CategoryCab & Body 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

Clean mating surfaces before fitting cab seals to prevent air and water ingress. Use correct adhesive for glass bonding — structural automotive adhesive, not silicone. Check wiring harness routing when replacing doors or panels.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeDoor Lock Assembly
MaterialSteel and Plastic
ApplicationOperator cab door
Service LifeReplace as needed based on operation
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing door lock assembly may initially present as a stiff or difficult-to-operate handle or latch. If the problem progresses, the lock may fail to engage or disengage properly, leaving the door unsecured or difficult to open. The ultimate risk is compromised cab security or the inability to exit the cab in an emergency.

Installation Tip

Before installing, ensure the door frame and latch striker are properly aligned to prevent binding. When securing the assembly, tighten all mounting screws evenly to ensure the mechanism operates smoothly without stress.

Service Note

When replacing the door lock assembly, inspect the door hinges and the door seal for wear or damage.