CATBearing & Bushing

1W6588 Piston G Rod — Cat 120G 12G

This is a connecting rod bearing, designed to provide a low-friction pivot point between the piston connecting rod and the crankshaft in Caterpillar engines. Manufactured to precise tolerances, it ensures efficient power transfer and reduces wear on critical rotating components, unlike a worn bearing that can lead to engine damage. Operators may notice a distinct knocking sound from the engine, a loss of power, or increased oil consumption when this bearing begins to fail.

Piston G Rod – Part No 1W6588 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBearing & Bushing
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

2D5173
Bearing As-Roller
1V6934
Bearing
7e4729
Piston Body
7C7197
Bearing
1413813
Bearing
2588502
Bearing

Browse all CAT Bearing Bushing →

Installation & Application Notes

Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.

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

Part TypeConnecting Rod Bearing
MaterialSteel alloy with overlay
ApplicationEngine connecting rod to crankshaft
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The primary symptom is a sharp, metallic knocking sound from the engine, often more pronounced under load or acceleration. If ignored, the knocking will become persistent, accompanied by a noticeable loss of engine power and potentially increased oil consumption. Continued operation risks severe damage to the crankshaft and connecting rod, leading to engine failure.

Installation Tip

Ensure the crankshaft journals and connecting rod bores are meticulously clean and free of any debris before installation. Apply the specified assembly lubricant to the bearing surfaces and torque the connecting rod bolts to the correct specification.

Service Note

Inspect the crankshaft journals for scoring or out-of-roundness and check the connecting rod bolts for stretch or damage when replacing rod bearings.