CATEngine Parts

158-5089 24V Relay — Cat 3054 3056E

This 24-volt relay is an electrical switch that uses a low-power signal to control a high-power circuit, commonly used in starting or accessory systems. It is built to meet rigorous OEM standards, ensuring reliable switching and longevity compared to a worn relay with pitted contacts or a weak coil. Operators may experience issues with the starter not engaging, accessories not functioning, or intermittent electrical problems when this relay fails.

24V Relay – Part No 158-5089 – 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 TypeRelay
MaterialPlastic, metal, copper contacts
ApplicationElectrical control circuits (e.g., starting, accessories)
Service LifeReplace as needed based on electrical system diagnostics
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing 158-5089 relay might initially cause intermittent issues, such as the starter not engaging on the first try or accessories cutting out unexpectedly. If the relay fails completely, it can result in a complete loss of function for the circuit it controls, like the inability to start the engine. Continued operation with a faulty relay can lead to electrical system faults or damage to other components.

Installation Tip

Ensure the relay socket is clean and free of corrosion before inserting the new relay. Always install the relay in the correct orientation to avoid damaging the electrical system.

Service Note

Inspect the wiring harness and connectors associated with the relay's circuit for any signs of damage or corrosion.