Product Introduction C2874027 Fuel Injector Bushing is a precision cylindrical sleeve fitted inside the cylinder head for Cum-mins ISZ13 diesel engine injectors. It isolates high-temperature coolant from fuel injector assembly, maintains injector positioning and prevents coolant from entering combustion chamber. This aftermarket replacement bushing addresses coolant mixing with fuel, bubble generation, injector corrosion and power reduction caused by bushing cracking, erosion or poor sealing of original sleeves, protecting fuel injectors and cylinder head for long-haul heavy cargo transport vehicles.

Product Advantages Made of high-strength alloy steel with precision machining, featuring outstanding heat resistance and pressure resistance. Smooth inner surface fits injector perfectly and guarantees accurate installation position. Anti-corrosion surface treatment resists chemical erosion from coolant and diesel fuel. Each bushing undergoes leak testing before shipment, stable sealing performance and effectively prevents cross-leakage between cooling circuit and fuel chamber.

Applicable Models Fit for heavy-duty trucks equipped with Cum-mins ISZ13 diesel engine, widely used in highway long-distance transportation and bulk cargo vehicles.

FAQ

Q1: What symptoms show fuel injector bushing failure?
A1: Coolant mixing into fuel, white smoke from exhaust and continuous engine overheating.
Q2: Can damaged injector bushing damage fuel injector?
A2: Yes, coolant leakage will corrode injector nozzle and cause poor fuel atomization.
Q3: Is special tool required to replace injector bushing?
A3: Yes, professional press tool is needed for removal and installation to avoid cylinder head damage.
Q4: Should I check injector O-rings after replacing bushing?
A4: Definitely, replace the corresponding sealing O-rings to guarantee system tightness.