CATEngine Parts

2w-9979-2w-9978 Oil Cooler Core 2W 9979 — Cat 3306

This oil cooler core is a vital component responsible for dissipating heat from the engine oil, maintaining optimal operating temperatures and lubrication effectiveness. Manufactured to meet rigorous OEM standards, it provides superior heat transfer and durability over a corroded or clogged unit. Operators may observe a rise in oil temperature, potential oil pressure fluctuations, and increased engine noise if this component is failing.

Oil Cooler Core 2W 9979 – Part No 2w-9979-2w-9978 – 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:'2w-9979-2w-9978', name:'Oil Cooler Core 2W 9979', brand:'CAT', brandSlug:'cat', category:'Engine Parts', catSlug:'engine-parts', condition:'OEM Aftermarket', description:'This oil cooler core is a vital component responsible for dissipating heat from the engine oil, maintaining optimal operating temperatures and lubrication effectiveness. Manufactured to meet rigorous OEM standards, it provides superior heat transfer and durability over a corroded or clogged unit. Operators may observe a rise in oil temperature, potential oil pressure fluctuations, and increased engine noise if this component is failing.', xref:['2w-9979-2w-9978'], models:["3306"], specs:[{key:'Part No',val:'2w-9979-2w-9978'},{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": "347-1134", "name": "Camshaft", "slug": "347-1134"}, {"partNo": "570-1261", "name": "Nitrogen Oxide Exhaust Sensor", "slug": "570-1261"}, {"partNo": "2300", "name": "95 5Kw", "slug": "2300"}, {"partNo": "2833454", "name": "Engine Parts Component", "slug": "2833454"}, {"partNo": "116-1980", "name": "Oil Pump", "slug": "116-1980"}, {"partNo": "451-0676", "name": "Rocker Switch Assembly", "slug": "451-0676"}], 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:'How does the oil cooler core contribute to engine health?',a:'It cools the engine oil, preventing it from breaking down and ensuring proper lubrication and wear protection for internal engine components.'},{q:'What is the correct procedure to confirm fitment for my CAT equipment?',a:'Cross-reference the part number and check the equipment model and serial number against the provided compatibility information. Consult a parts specialist if unsure.'},{q:'Is this oil cooler core equivalent to the original CAT part?',a:'Yes, this core is manufactured to meet OEM specifications for performance and durability, offering a reliable replacement.'},{q:'What is the recommended maintenance for an oil cooler?',a:'Regularly inspect the cooler for leaks, damage, or external blockage. Ensure the cooling fins are clean for optimal heat dissipation.'}], 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": "Oil Cooler Core"}, {"key": "Material", "val": "Aluminum alloy"}, {"key": "Application", "val": "Engine lubrication system"}, {"key": "Service Life", "val": "Replace as needed based on inspection and performance"}, {"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

347-1134
Camshaft
570-1261
Nitrogen Oxide Exhaust Sensor
2300
95 5Kw
2833454
Engine Parts Component
116-1980
Oil Pump
451-0676
Rocker Switch Assembly

Browse all CAT Engine Parts →

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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 TypeOil Cooler Core
MaterialAluminum alloy
ApplicationEngine lubrication system
Service LifeReplace as needed based on inspection and performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indications of an oil cooler core issue include a gradual increase in engine oil temperature readings. If left unaddressed, this can lead to oil breakdown, reduced lubrication effectiveness, and potential overheating of engine components. Prolonged operation with a faulty oil cooler risks accelerated wear and damage to critical engine parts.

Installation Tip

Ensure all mating surfaces are perfectly clean and free of old gasket material before installing the new core. Do not overtighten the mounting bolts, as this can distort the core and cause leaks.

Service Note

Inspect the engine oil and filter, and check the coolant system for proper operation.