CATEngine Parts

447-9646 Armature — Cat LC31XX DG125

This armature is a rotating component within the generator's electrical system, responsible for producing electrical current through electromagnetic induction. It is constructed from high-grade materials to meet Caterpillar's demanding performance specifications, offering superior conductivity and durability over a worn armature with damaged windings or bearings. Operators may observe a loss of power output, intermittent charging, or unusual noises from the generator if the armature fails.

Armature – Part No 447-9646 – 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

before 3 PM IST.', };

Related CAT Parts

From the same category — may also be needed

3g-7654
Hydraulic Pump Cartridge
3802065
Kit-Piston Rings
378-9645-3789645
Alternator 378 9645
1g-9788
Hydraulic Pump
8i-3814
Fuel Level Sensor
9N0407
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 TypeGenerator Armature
MaterialCopper windings, steel core
ApplicationGenerator electrical system
Service LifeReplace as indicated by generator performance diagnostics
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing armature may first present as reduced generator output or inconsistent voltage. As the failure progresses, the generator might cease to produce power, or audible grinding noises could develop from worn bearings. Continued operation with a compromised armature risks damaging other generator components and leaving the equipment without essential power.

Installation Tip

Carefully inspect the generator housing and stator for any debris or damage before installing the new armature. Ensure the armature is perfectly centered and spins freely without any binding before reassembly.

Service Note

Inspect the generator's slip rings and brushes for wear, and check the condition of the main bearings during armature replacement.