CATUndercarriage

7T3928 Piston — Cat D10T

This is a replacement piston designed for specific Caterpillar engine models, forming a crucial part of the combustion chamber. Manufactured to meet OEM standards, it provides reliable performance and durability, outperforming pistons that have experienced scoring or deformation. Observable signs of a failing piston include a loss of engine power, increased exhaust smoke, and unusual engine noises.

Piston – Part No 7T3928 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
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

ispatch before 3 PM IST.', };

Related CAT Parts

From the same category — may also be needed

1156428
Piston As
1156423
Caterpillar Track Adjuster & Recoil Gp 1156423
2941784
Pulley
930321
Nut, Shoe
7Y0773
Spring Gp-Recoil
527-3878-372-5958
Bottom Track Roller

Browse all CAT Undercarriage →

Installation & Application Notes

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

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

Part TypePiston
MaterialAluminum Alloy
ApplicationEngine Combustion Chamber
Service LifeReplace as part of engine overhaul, typically 10,000-15,000 hrs
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing piston may initially manifest as a noticeable drop in engine horsepower and increased blue or black smoke from the exhaust. If ignored, this can progress to rough engine running and potential oil consumption issues. The worst consequence is severe engine damage due to loss of compression or mechanical failure within the cylinder.

Installation Tip

Ensure the cylinder bore is properly honed and cleaned before installing the piston to ensure correct ring seating. Avoid forcing the piston into the cylinder; use the correct installation tools and techniques to prevent damage.

Service Note

Always replace piston rings, cylinder liners, and connecting rod bearings when replacing pistons.