CATEngine Parts

285-0852 Trunnion — Cat 3306 D6T

This is a CAT Trunnion, a critical pivot component that facilitates the articulation and movement of the machine's chassis or implement system. It is engineered to meet demanding OEM specifications for strength and wear resistance, providing smooth and reliable operation unlike worn trunnions that can cause binding or excessive play. Operators may experience stiff steering, uneven tire wear, or noticeable looseness in the machine's frame when a trunnion begins to fail.

Trunnion – Part No 285-0852 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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

Part TypeTrunnion
MaterialHardened Steel
ApplicationChassis/Implement Pivot
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing trunnion is often a feeling of looseness or play in the machine's steering or articulation. If neglected, this can lead to increased wear on adjacent components and potentially affect the machine's stability during operation. Continued use with a worn trunnion poses a risk to the structural integrity of the machine's frame and steering system.

Installation Tip

Ensure all mating surfaces and pivot points are thoroughly cleaned and lubricated before installing the new trunnion to prevent premature wear. Avoid overtightening fasteners, as this can distort the trunnion or damage the mounting points.

Service Note

When replacing a trunnion, it is essential to inspect the pivot bushings, seals, and surrounding frame structure for any signs of wear or damage.