CATEngine Parts

6N4221lK Engine Parts Component — Cat Engine: 3204

This component is a critical part of the engine's internal assembly, ensuring proper operation and power output. It is manufactured to meet stringent quality standards, providing a reliable alternative to worn or damaged original parts. Failure may manifest as reduced engine performance, unusual noises, or increased oil consumption.

Engine Parts Component – Part No 6N4221lK – 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:'6N4221lK', name:'Engine Parts Component', brand:'CAT', brandSlug:'cat', category:'Engine Parts', catSlug:'engine-parts', condition:'OEM Aftermarket', description:'This component is a critical part of the engine\'s internal assembly, ensuring proper operation and power output. It is manufactured to meet stringent quality standards, providing a reliable alternative to worn or damaged original parts. Failure may manifest as reduced engine performance, unusual noises, or increased oil consumption.', xref:['6N4221lK'], models:['Engine: 3204'], specs:[{key:'Part No',val:'6N4221lK'},{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": "7N3536", "name": "Gear (80 Teeth)", "slug": "7N3536"}, {"partNo": "4p2975", "name": "Air Brake Compressor", "slug": "4p2975"}, {"partNo": "7w-9541", "name": "Radiator Folded Core", "slug": "7w-9541"}, {"partNo": "197-8820-10r-9789-0r-4841", "name": "24V Alternator", "slug": "197-8820-10r-9789-0r-4841"}, {"partNo": "328-2576", "name": "Fuel Injector", "slug": "328-2576"}, {"partNo": "6i3650", "name": "Piston As", "slug": "6i3650"}], 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 the 6N4221lK component?',a:'This engine component plays a vital role in the internal mechanics of the engine, contributing to its overall performance and efficiency.'},{q:'Is this part a direct replacement for the original CAT component?',a:'Yes, this part is designed to meet OEM specifications for fit, form, and function, ensuring it integrates seamlessly into the engine assembly.'},{q:'What is the expected lifespan of this engine component?',a:'The service life depends on operating conditions and maintenance; it is typically replaced when wear is detected during engine overhauls or inspections.'},{q:'What should be checked when replacing this engine component?',a:'Inspect surrounding engine components for wear or damage, and ensure proper lubrication during reassembly to prevent premature failure.'}], 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": "Engine Component"}, {"key": "Material", "val": "Steel alloy"}, {"key": "Application", "val": "Engine internal"}, {"key": "Service Life", "val": "Replace as needed based on inspection"}, {"key": "Compatibility", "val": "OEM specification"}, {"key": "Condition", "val": "New \u2014 OEM specification aftermarket"}],};script src="/assets/js/product-page.js">

Related CAT Parts

From the same category — may also be needed

7N3536
Gear (80 Teeth)
4p2975
Air Brake Compressor
7w-9541
Radiator Folded Core
197-8820-10r-9789-0r-4841
24V Alternator
328-2576
Fuel Injector
6i3650
Piston As

Browse all CAT Engine Parts →

Ship This Part To Your Location

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India
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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 TypeEngine Component
MaterialSteel alloy
ApplicationEngine internal
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of failure may include a subtle decrease in engine power or a slight increase in exhaust smoke. If ignored, the component's performance degradation will worsen, leading to more noticeable power loss and potential engine instability. Continued operation with a failing component risks significant internal engine damage.

Installation Tip

Ensure the engine block and surrounding components are thoroughly cleaned before installation to prevent contamination. Avoid overtightening fasteners, as this can damage the component or the engine block.

Service Note

Inspect crankshaft seals and connecting rod bearings for wear when replacing this component.