CATBearing & Bushing

3W8357 Bulldozer Gp — Cat 973 973C

This component is a critical assembly, often referred to as a Bulldozer Group, designed to house and support essential rotating or articulating parts within the undercarriage or power train. Manufactured to meet Caterpillar's exacting standards, it ensures precise alignment and smooth operation, unlike a worn or damaged group that would exhibit excessive play and binding. Operators may notice increased noise, vibration, or difficulty in steering or power application when this assembly begins to fail.

Bulldozer Gp – Part No 3W8357 – 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.

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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 TypeBearing Housing Assembly
MaterialCast Iron / Steel
ApplicationUndercarriage or drive system support
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Initial signs of failure may include unusual noises such as clunking or grinding originating from the undercarriage or drive system. If ignored, the assembly can develop significant play, leading to misalignment of rollers or sprockets, increased track wear, and potential operational instability. Continued operation risks damage to the track system, drive components, and could lead to unexpected downtime.

Installation Tip

Ensure all mounting bolt holes are clean and free of debris, and that the mating surfaces on the machine frame are perfectly flat and undamaged before attempting installation. Do not overtighten mounting bolts, as this can distort the housing and cause premature bearing failure.

Service Note

Inspect all associated bearings, seals, and fasteners within the assembly and on the machine frame for wear or damage, and replace as necessary.