CATBearing & Bushing

3T1378 Bar Gp-Equalizer — Cat D10N D9L

This is a critical equalizer bar group, designed to connect and articulate the mainframe components of Caterpillar crawler tractors, allowing for controlled movement and load distribution. Manufactured to meet stringent OEM quality standards, it provides superior strength and durability for sustained heavy-duty operation. Operators may notice uneven track wear, poor machine stability, or unusual frame flexing if this equalizer bar group begins to fail.

Bar Gp-Equalizer – Part No 3T1378 – 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 TypeEqualizer Bar Group
MaterialForged Steel
ApplicationTractor Frame Articulation
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

An initial symptom of failure might be a clunking noise when the machine traverses uneven terrain or turns. If ignored, the bar can develop cracks or excessive wear, leading to compromised machine stability and uneven stress on the undercarriage. Continued operation risks structural damage to the tractor's mainframe.

Installation Tip

Ensure all mounting surfaces and pivot points are thoroughly cleaned and free of rust or old lubricant before assembly. Do not overtighten the mounting hardware, as this can distort the equalizer bar or damage the pivot points.

Service Note

Inspect the equalizer bar pivot pins, bushings, and the surrounding mainframe structure for any signs of wear, cracks, or damage during replacement.