CATSeals & O-Rings

7c4943 Kit-Piston Ring — Cat 1673c 3176

This is a set of piston rings designed to seal the combustion chamber in CAT diesel engines, specifically for the 1673c, 3176, and related series. These rings maintain compression, control oil consumption, and transfer heat to the cylinder walls, ensuring efficient engine operation. Worn or broken piston rings lead to loss of compression, increased oil consumption, and blow-by, resulting in reduced engine power and potential cylinder damage.

Kit-Piston Ring – Part No 7c4943 – CAT Spare Part
Part Specifications
BrandCAT
CategorySeals & O-Rings
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

PM IST.', };

Related CAT Parts

From the same category — may also be needed

1101337
Kit-Piston Ring
4W9475
Gasket-Cover
7T3267
Kit-Bushing
7T3268
Kit-Lever
1440502
Kit-Piston Ring
1647572
Kit-Piston Ring

Browse all CAT Seals Orings →

Installation & Application Notes

Always match seal material to fluid type — NBR for petroleum, FKM (Viton) for high-temperature/chemical applications. Lubricate seals with clean fluid before fitting — never grease. Check shaft surface for scoring — rough surfaces destroy new seals within hours.

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

Part TypePiston Ring Kit
MaterialCast iron, ductile iron
ApplicationEngine cylinder sealing
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early indicators of worn piston rings include increased blue smoke from the exhaust due to oil burning and a noticeable decrease in engine power. If ignored, oil consumption will worsen, leading to fouled spark plugs (if applicable) or injectors, and significant blow-by gases escaping the combustion chamber. This can eventually lead to cylinder wall damage and reduced engine longevity.

Installation Tip

Carefully inspect the cylinder walls for any scoring or damage before installing the new rings to ensure proper sealing. Ensure the piston ring gaps are staggered correctly according to the service manual to prevent blow-by.

Service Note

When replacing piston rings, it is highly recommended to inspect the cylinder liners for wear and check the condition of the pistons and connecting rod bearings.