CATEngine Parts

3780509 Piston — Cat 16G 3406B

This is a replacement piston designed for specific CAT engines, crucial for the combustion process within the cylinder. Manufactured to precise tolerances, it ensures optimal compression and power transfer, differing from worn pistons that may exhibit scoring or reduced diameter. Operators might observe a loss of engine power, increased exhaust smoke, or abnormal engine noises when a piston is failing.

Piston – Part No 3780509 – 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

dispatch before 3 PM IST.', };

Related CAT Parts

From the same category — may also be needed

91246-10300
Master Cylinder
296-0738
Hoist Cylinder
358-4992
Piston Pump
10r-6163
Fuel Injector
1077563lK
Body As-Piston
177-3321
Spider Fan Blade

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 TypeEngine Piston
MaterialCast Aluminum Alloy
ApplicationEngine Cylinder
Service LifeReplace as part of engine overhaul
CompatibilityCAT 3406B, 3406C, etc.
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A noticeable decrease in engine power and performance is often the first indication of a piston issue. Continued operation can lead to increased oil consumption and blueish exhaust smoke as oil bypasses the rings. Severe piston damage can result in engine misfires and potential internal engine damage.

Installation Tip

Ensure the cylinder bore is clean and free of debris before installing the piston to prevent scoring. Always install new piston rings with the correct orientation and gap spacing as per service manual specifications.

Service Note

Always replace piston rings, connecting rod bearings, and inspect cylinder liners when installing new pistons.