CATExhaust & Turbo

1U3952 Cartridge Gp — Cat 815B 973

This cartridge group is an essential part of the engine's turbocharger system, regulating exhaust gas flow to optimize turbine speed and boost pressure. Manufactured to meet precise OEM specifications, it provides reliable performance and durability, unlike a worn cartridge that may exhibit signs of leakage or internal damage. Operators might observe a significant loss of engine power, excessive black smoke from the exhaust, or unusual whistling noises from the turbocharger when this component is failing.

Cartridge Gp – Part No 1U3952 – CAT Spare Part
Part Specifications
BrandCAT
CategoryExhaust & Turbo
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

Allow turbo to idle 2–3 minutes before shutdown — this circulates oil through bearings and prevents coking. Check oil feed and drain lines for blockages before fitting new turbo. Replace oil and filter when fitting new turbo — old oil contains metal particles.

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

Part TypeTurbocharger Cartridge Assembly
MaterialHigh-temperature steel alloy
ApplicationTurbocharger system
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing turbocharger cartridge may include a noticeable decrease in engine acceleration or a persistent whining sound. As the failure progresses, excessive exhaust smoke and a significant loss of power under load will become apparent. Continued operation risks severe engine damage due to inadequate air supply and potential turbocharger disintegration.

Installation Tip

Thoroughly clean the turbocharger housing and oil supply lines before installing the new cartridge to prevent contamination. Ensure the oil feed and drain passages are properly aligned and free of obstructions.

Service Note

Inspect the turbocharger oil feed and drain lines, as well as the air intake and exhaust piping, for leaks or blockages.