CATEngine Parts

310-2854 Belt Tension Spring — Cat C15 D8T

This Belt Tension Spring is designed to maintain optimal tension on the engine's accessory drive belts, ensuring reliable operation of components like the alternator and water pump. It is manufactured to OEM specifications, providing consistent spring force and durability that a weakened or broken spring cannot match. Operators may notice a squealing noise from the belts, intermittent charging system warnings, or a malfunctioning water pump if this tension spring fails.

Belt Tension Spring – Part No 310-2854 – 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 TypeBelt Tension Spring
MaterialHigh-strength steel
ApplicationEngine accessory drive belt system
Service LifeReplace every 3,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing belt tension spring is often an audible squealing from the accessory belts, especially during engine startup or acceleration. If the spring loses its tension, belts may begin to slip intermittently, leading to reduced performance of the alternator or water pump. If the spring breaks completely, the accessory belts will likely come off, causing a rapid loss of power steering, alternator output, and engine cooling.

Installation Tip

Ensure the tensioner arm pivots freely and is properly lubricated before installing the new spring. Avoid over-stretching the spring during installation, as this can permanently weaken it.

Service Note

When replacing the belt tension spring, inspect the condition of all accessory drive belts and pulleys for wear or damage.