Cummins PT Injector Cup

1.Injector Introduction

A Cummins PT injector cup, also known as an injector sleeve or injector tube, is a component used in diesel engines equipped with Cummins PT fuel injection systems. It is located in the cylinder head and serves as a sleeve or guide for the fuel injector to pass through and seal against.

Here’s some key information about Cummins PT injector cups:

1. Location: Injector cups are typically installed in the cylinder head of the engine, specifically in the injector bore. Each injector is seated in its respective injector cup.
2. Material: Injector cups are usually made of hardened steel or other durable materials capable of withstanding the high temperatures and pressures found in the combustion chamber.
3. Sealing Function: The primary function of the injector cup is to provide a sealing surface for the injector. It prevents combustion gases and fuel from leaking into the cylinder head or coolant passages.
4. Coolant Passage: In some engine designs, injector cups also serve as part of the engine’s cooling system. Coolant flows around the injector cups to help dissipate heat generated by the combustion process.
5. Maintenance and Replacement: Over time, injector cups can wear out due to heat, pressure, and chemical exposure. If a cup develops leaks or cracks, it can lead to coolant loss, overheating, or other engine problems. Replacement of injector cups may be necessary during engine overhauls or when diagnosing fuel system issues.
6. Compatibility: Injector cups must be compatible with the specific engine model and fuel system design. Using incorrect or incompatible injector cups can lead to improper sealing and potential engine damage.

2.Product Model List