CATCooling System

5i7777 Cooling Component — Cat 320 320 l

This cooling component is essential for maintaining the engine's optimal operating temperature by controlling coolant circulation. It is manufactured to meet strict quality benchmarks, offering reliable performance and durability over a standard service life. Observable signs of failure include the engine running consistently too cold, poor heater performance, or overheating if the component fails in the closed position.

Cooling Component – Part No 5i7777 – CAT Spare Part
Part Specifications
BrandCAT
CategoryCooling System
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

M IST.', };

Related CAT Parts

From the same category — may also be needed

1142474
Fan
2w7919
Water Radiator Core
4P5651
Tube As-Piston Cooling
509-1081
Oil Cooler
1m7573
4H7500, 9H8382
4n8995
Cooling Component

Browse all CAT Cooling System →

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

Flush cooling system with distilled water before refilling. Use pre-mixed coolant — never plain water, which causes corrosion. Pressure-test system after any cooling repair. Check thermostat by immersing in hot water — should open at rated temperature.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeThermostat
MaterialMetal and rubber
ApplicationEngine cooling system
Service LifeReplace every 2,000 hrs or annually
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A primary symptom of a failing cooling component is the engine operating outside its normal temperature range, either running too cool or too hot. If the thermostat fails in the open position, the engine may not reach operating temperature, leading to inefficient combustion and increased wear. If it fails closed, rapid overheating can occur, potentially causing significant engine damage.

Installation Tip

Ensure the thermostat is installed in the correct orientation as indicated by any markings or the engine service manual. Improper installation can lead to immediate cooling system failure.

Service Note

Check the condition of the radiator cap and coolant condition when replacing this cooling component.