This is a fuel injector sleeve kit, also known as an injector cup or seat, which provides a sealed mounting point for the fuel injector within the cylinder head of Volvo TD60B engines and compatible excavators and loaders. It is made from durable materials to prevent fuel leaks and ensure proper injector spray pattern, unlike a corroded or damaged sleeve that can cause hard starting and poor engine performance. Symptoms of a failing injector sleeve include hard starting, rough idling, fuel in the engine oil, or a noticeable drop in fuel economy.
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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.
A primary symptom of a failing injector sleeve is difficulty starting the engine, especially when cold. You may also experience rough idling, a noticeable decrease in engine power, or discover fuel contamination in the engine oil. If left unaddressed, injector sleeve leaks can lead to poor combustion, cylinder washing, and potential engine damage.
Ensure the cylinder head bore is meticulously clean and free of any carbon deposits or corrosion before attempting installation; improper seating can cause leaks or damage the sleeve.
When replacing injector sleeves, it is also advisable to inspect and clean the fuel injectors themselves and replace any worn seals or O-rings.