CATEngine Parts

101-3987-1013987 Ignition Switch 101 3987 — Cat 3034 C4 4 Engine

This ignition switch serves as the primary control for the engine's electrical system, allowing the operator to start, run, and stop the engine. Built to meet exacting OEM specifications, it ensures reliable electrical contact and durability, unlike a worn switch with intermittent connections. Operators may experience the engine failing to crank, unexpected shutdowns, or dashboard warning lights not illuminating when this switch is faulty.

Ignition Switch 101 3987 – Part No 101-3987-1013987 – 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 TypeIgnition Switch
MaterialPlastic, metal contacts
ApplicationEngine electrical system control
Service LifeReplace as needed based on electrical diagnostics
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing ignition switch is often intermittent power to the starter or ignition system. If ignored, the engine may become difficult to start or may shut off unexpectedly while running. Complete failure of the switch will leave the equipment inoperable, preventing engine start-up.

Installation Tip

Before removing the old switch, carefully note the wiring connections to ensure correct reattachment. Do not force the switch into its mounting hole; ensure it is the correct type for the panel.

Service Note

Inspect the wiring harness connected to the ignition switch for any signs of chafing, corrosion, or loose connections.