CATEngine Parts

297-7654 Hex Head Bolt — Cat 320C 320D

This hex head bolt is a high-strength fastener used to secure various components within the engine and related systems, ensuring structural integrity and proper assembly. Manufactured from hardened steel, it offers superior tensile strength and resistance to vibration compared to standard bolts. A stripped or broken bolt can lead to component loosening, vibration, and potential leaks or system malfunctions.

Hex Head Bolt – Part No 297-7654 – 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 TypeHex Head Bolt
MaterialHardened Steel
ApplicationEngine and equipment assembly
Service LifeReplace as needed or during component service
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The primary symptom of a failing hex head bolt is visual evidence of damage, such as a stripped head or a broken shank, or a component that has begun to loosen. If ignored, this can lead to increased vibration, misalignment of connected parts, and potential fluid leaks. The worst outcome is component separation or failure due to inadequate fastening.

Installation Tip

Always clean the bolt threads and the tapped hole thoroughly before installation to ensure proper engagement and torque. Never reuse a bolt that has been stretched or shows signs of fatigue; always replace with a new fastener of the correct specification.

Service Note

Inspect the threads in the mating component for damage or wear when replacing a bolt.