Description
Product Overview
320-0677 is a dedicated split maintenance kit for injectors, combining the internal core moving parts and a complete set of sealing consumables. It is used for disassembling and repairing aged injectors. Over time, nozzle blockage, valve rod wear, and hardened sealing components can cause abnormal fuel supply. Using this accessory allows for the replacement of worn parts separately without replacing the entire injector assembly, significantly reducing equipment maintenance costs. It is suitable for deep maintenance of various heavy-duty diesel machinery injection systems.
Unique Core Features of the Single Product
Longened integrated precision control valve rod, smooth reciprocating motion
The valve rod is made of a single piece of hardened steel and is processed as a whole. The slender rod body has high coaxiality and uniform clearance with the inner wall of the valve body. It is not prone to unilateral wear during high-frequency reciprocating motion, effectively avoiding problems such as insufficient fuel injection closure and oil leakage relief.
Conical micro-hole atomizing nozzle, refined fuel reduces carbon deposits
The matching pointed micro-hole nozzle has evenly distributed oil outlet holes, resulting in fine fuel spray and more complete combustion in the cylinder. It reduces carbon accumulation on the nozzle and piston top, improves exhaust odor and high fuel consumption problems.
Multi-material layered sealing accessories, fully prevent leakage
The kit is equipped with three layers of sealing components: copper flat washers, oil-resistant rubber O-rings, and wear-resistant sealing rings. These are respectively adapted to different sealing points of the injector. They do not deform or harden under high-temperature and high-pressure conditions and can prevent oil leakage at all joint surfaces.
Standardized set of accessories, one-step maintenance preparation
All components such as valve rods, nozzles, and various sealing washers are fully equipped. There is no need to separately check and purchase scattered accessories. Maintenance stores can batch prepare more conveniently. All worn parts can be replaced during a single disassembly of the injector.
Mirror surface precision grinding of mating surfaces, stable high-pressure holding pressure performance
The valve rod end and nozzle mating surfaces have been mirror-ground processed, ensuring a tight and gap-free fit. High-pressure fuel is less likely to leak from the joint, maintaining stable injection pressure throughout high-load operation. Applicable scenarios
It is compatible with the internal structure of the corresponding series of electronic fuel injectors. It is mainly used in large excavators, mining equipment, loaders, and high-power generator sets. It is suitable for the refurbishment of fuel injectors in repair shops and the batch maintenance of engineering fleets.
Product basic parameters
Product name: Fuel Injector Overhaul Maintenance Kit
Part number: 320-0677
Main material: Quenched alloy valve stem, hard alloy nozzle, copper sealing gasket, oil-resistant rubber sealing ring
Kit contents: Control valve stem, atomizing nozzle, copper gasket, double-layer rubber sealing ring
Application conditions: Continuous high-temperature heavy-load, dusty outdoor engineering diesel equipment
Product status: New complete set of accessories, completed with cooperation clearance and sealing pressure test
Packaging: Independent compartmentalized storage packaging, metal parts and sealing parts are separated for protection to avoid scratches and deformation of rubber rings, suitable for cross-border small package logistics
