CATEngine Parts

197-8820-10r-9789-0r-4841 24V Alternator — Cat

This is a 24V alternator designed to charge the battery and power electrical systems on CAT C9 engines. It is manufactured to meet stringent OEM quality standards, ensuring reliable performance compared to worn units that may exhibit reduced output. Operators may notice dimming lights, a battery warning light illuminated on the dash, or difficulty starting the engine if the alternator is failing.

24V Alternator – Part No 197-8820-10r-9789-0r-4841 – 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

const P = { partNo:'197-8820-10r-9789-0r-4841', name:'24V Alternator', brand:'CAT', brandSlug:'cat', category:'Engine Parts', catSlug:'engine-parts', condition:'OEM Aftermarket', description:'This is a 24V alternator designed to charge the battery and power electrical systems on CAT C9 engines. It is manufactured to meet stringent OEM quality standards, ensuring reliable performance compared to worn units that may exhibit reduced output. Operators may notice dimming lights, a battery warning light illuminated on the dash, or difficulty starting the engine if the alternator is failing.', xref:['197-8820-10r-9789-0r-4841'], models:["C9"], specs:[{key:'Part No',val:'197-8820-10r-9789-0r-4841'},{key:'Brand',val:'CAT'},{key:'Category',val:'Engine Parts'},{key:'Condition',val:'Aftermarket — OEM Specification'},{key:'Dispatch',val:'Same-day from Mumbai (before 3 PM IST)'},{key:'GST Invoice',val:'Available — all orders'},{key:'Export Docs',val:'Commercial invoice, packing list, COO'}], relatedParts:[{"partNo": "2239133", "name": "Engine Parts Component", "slug": "2239133"}, {"partNo": "277-6695-352-8147", "name": "Travel Gearbox With Motor", "slug": "277-6695-352-8147"}, {"partNo": "1476983", "name": "Engine Parts Component", "slug": "1476983"}, {"partNo": "365-6790", "name": "Ecu Ecm Controller", "slug": "365-6790"}, {"partNo": "4w5739", "name": "4 Pairs Con Rod Bearings", "slug": "4w5739"}, {"partNo": "160-1695-116-6706-0r-9807", "name": "Fuel Injector", "slug": "160-1695-116-6706-0r-9807"}], reviews:[{name:'Vikram Singh',loc:'Delhi, India',rating:5,text:'CAT part arrived fast. OEM specification, fits perfectly in my 320D. Highly recommend PTC.'},{name:'Ibrahim Al Rashid',loc:'Dubai, UAE',rating:5,text:'Great service and fast shipping to UAE. The CAT part was exactly as described. Very reliable supplier.'},{name:'Pradeep Sharma',loc:'Nagpur, Maharashtra, India',rating:4,text:'Quick response, good quality. Team confirmed compatibility before dispatch which I appreciated.'}], faq:[{q:'What is the primary function of this 24V alternator?',a:'The alternator\'s main role is to convert mechanical energy from the engine into electrical energy to recharge the battery and supply power to the vehicle\'s electrical components while the engine is running.'},{q:'How can I be sure this alternator will fit my CAT C9 engine?',a:'Verify that your engine model is a CAT C9 and check the original part number against the one listed. Consulting your equipment\'s service manual is also recommended for precise fitment confirmation.'},{q:'What is the warranty on this CAT alternator?',a:'This alternator is a new, high-quality aftermarket replacement meeting OEM standards and typically comes with a comprehensive warranty against manufacturing defects.'},{q:'What should I check before installing a new alternator?',a:'Ensure the battery terminals are clean and tight, and inspect the drive belt for wear or damage, as a faulty belt can prevent the alternator from charging correctly.'}], categoryDesc:'CAT Engine Parts from Parts Trading Company cover the full range of CAT equipment. We supply OEM-specification aftermarket engine parts sourced from certified manufacturers. PTC has supplied CAT engine parts to customers across India, UAE, Russia, Indonesia, and Africa since 1956. Our Mumbai warehouse stocks high-turnover CAT engine parts for same-day dispatch before 3 PM IST.', aiSpecs:[{"key": "Part Type", "val": "Alternator"}, {"key": "Material", "val": "Steel, Aluminum, Copper"}, {"key": "Application", "val": "Engine electrical charging system"}, {"key": "Service Life", "val": "Replace as needed based on performance testing"}, {"key": "Compatibility", "val": "OEM specification"}, {"key": "Condition", "val": "New \u2014 OEM specification aftermarket"}],};script src="/assets/js/product-page.js">

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From the same category — may also be needed

2239133
Engine Parts Component
277-6695-352-8147
Travel Gearbox With Motor
1476983
Engine Parts Component
365-6790
Ecu Ecm Controller
4w5739
4 Pairs Con Rod Bearings
160-1695-116-6706-0r-9807
Fuel Injector

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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 TypeAlternator
MaterialSteel, Aluminum, Copper
ApplicationEngine electrical charging system
Service LifeReplace as needed based on performance testing
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A dimming of headlights or dashboard lights, especially when the engine is at idle, is often the first sign of alternator trouble. As the problem progresses, the battery warning light may illuminate, and the engine may experience intermittent stalling or difficulty starting due to insufficient battery charge. Eventually, the electrical system will cease to function as the battery depletes, leading to unexpected equipment shutdown.

Installation Tip

Before removing the old alternator, mark the position of the mounting bolts to ensure correct alignment of the new unit. Avoid overtightening the drive belt, as this can cause premature wear on the alternator bearings and the belt itself.

Service Note

Inspect the drive belt and tensioner for wear and proper function when replacing the alternator.