489.03.0004 Injector Sleeve, Cylinder Head — VOLVO

The 489.03.0004 Injector Sleeve, Cylinder Head is a critical component within the engine system, specifically designed to maintain the integrity of the fuel injection interface. This part serves a vital role in ensuring precise fuel delivery and protecting the cylinder head structure from thermal and pressure-related stresses in heavy commercial vehicle engines.

This specific component is the OE-equivalent of the VOLVO 273983 and 470247 injector sleeves used in heavy-duty engine applications. By utilizing heavy-duty grade materials, it maintains strict tolerances required for modern high-pressure injection environments, ensuring compatibility with professional-grade engine assemblies.

For workshop technicians and fleet managers, this part facilitates reliable maintenance and assembly processes during engine overhauls. It is essential to verify the exact fitment within the cylinder head assembly to ensure optimal seating and prevent potential leakage or compression loss during operation.

Maintaining regular service intervals and ensuring the cleanliness of the injection system helps preserve the functionality of this sleeve over long service cycles. This component is engineered for high-strength performance in demanding environments.