CATEngine Parts

227-1200 6 Pcs Injector Sleeve — Cat 325D

This is a set of 6 Injector Sleeves, also known as injector cups or liners, which provide a sealed seat for the fuel injectors within the cylinder head. They ensure a leak-free environment for high-pressure fuel delivery into the combustion chamber, critical for efficient engine operation and emissions control. A compromised injector sleeve can lead to fuel dilution of the engine oil, rough running, or starting difficulties. Symptoms include a strong fuel odor in the crankcase, white smoke from the exhaust, or a noticeable drop in engine performance.

6 Pcs Injector Sleeve – Part No 227-1200 – 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 TypeInjector Sleeve Set
MaterialHardened steel alloy
ApplicationFuel injector seating in cylinder head
Service LifeReplace as needed based on inspection or fuel system service
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The engine may run roughly, especially at idle, or exhibit a noticeable loss of power. If ignored, fuel can begin to leak into the crankcase, diluting the engine oil and compromising lubrication. The ultimate risk is severe internal engine damage due to inadequate lubrication and potential combustion issues.

Installation Tip

Ensure the injector bore in the cylinder head is meticulously cleaned and free of any debris or carbon deposits before attempting installation. Use the correct specialized installation tool to press the sleeve in evenly and to the specified depth.

Service Note

When replacing injector sleeves, it is also advisable to inspect and potentially replace the fuel injectors themselves, along with their seals and O-rings.