CATEngine Parts

7K0639 Spring — Cat 941 D4D

This spring is a critical component designed to provide calibrated tension and return force within various mechanical systems, such as suspension or linkage assemblies. It is manufactured from high-tensile steel to withstand repeated stress cycles, unlike a worn spring that may have lost its elasticity or developed cracks. Operators might observe a loss of suspension responsiveness, uneven ride height, or unusual noises from the affected area when this spring fails.

Spring – Part No 7K0639 – 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 TypeSpring
MaterialHigh-tensile steel
ApplicationSuspension or linkage system
Service LifeReplace as needed based on inspection
Compatibility941, D4D
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The first indication of a failed spring might be a noticeable sag in the equipment's stance or a change in how it handles bumps. If left unaddressed, the affected system may become unstable, leading to increased wear on other components and a rougher operating experience. Continued use with a broken spring can compromise the structural integrity of the equipment.

Installation Tip

Always use appropriate spring compressors and safety stands when removing or installing springs, as they store significant energy. Never attempt to compress a spring beyond its designed limits.

Service Note

Inspect related suspension and linkage components for wear or damage when replacing the 7K0639 spring.