CATEngine Parts

457-8670 Current Transformer — Cat Engine C4 4

This is a current transformer, an essential device in electrical systems that steps down high electrical currents to a safe level for measurement or monitoring by protective relays and meters. It is manufactured to meet precise OEM specifications for accuracy and insulation, ensuring reliable performance unlike a damaged or degraded unit. Operators may notice inaccurate readings on electrical gauges, tripping of protective devices, or potential electrical system malfunctions if this transformer fails.

Current Transformer – Part No 457-8670 – 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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

;

Related CAT Parts

From the same category — may also be needed

225-6005
Oil Pan Gasket
236-5129
Cylinder Head Assembly
1352837
Crown As- Piston
216-6163
Hydraulic Fan Motor
149-2612
Reversing Relay
2063805
Engine Parts Component

Browse all CAT Engine Parts →

Ship This Part To Your Location

DubaiSaudi ArabiaNigeriaKenyaSouth AfricaBangladeshMalaysiaGhanaQatarEgypt
India
MaharashtraGujaratTamil NaduRajasthanKarnatakaTelangana

Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

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 TypeCurrent Transformer
MaterialCopper windings, epoxy resin
ApplicationElectrical power monitoring
Service LifeDesigned for long-term operation; replace if faulty
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing current transformer might be inaccurate readings on ammeters or other current-monitoring devices. If ignored, this can lead to protective relays not activating correctly, potentially allowing overcurrent conditions to persist. The ultimate risk is damage to electrical components or wiring due to undetected overcurrent situations.

Installation Tip

Ensure the primary conductor passes through the transformer core in the correct direction as indicated by any markings. Never energize the secondary circuit while the primary circuit is carrying current without a load connected to the secondary.

Service Note

Inspect all associated wiring, meters, and protective relays for proper function and signs of damage.