Description
Product Overview
Over a long period of time, the injector operates under high temperature and high pressure conditions, as well as exposure to diesel oil erosion. The sealing gasket may harden and crack, the spring's elasticity may decline, and the screws may rust and become loose. This can lead to oil leakage in the pipeline, unstable track pressure, improper closure of the injector, decreased power, increased black smoke emissions, and increased fuel consumption. This complete maintenance package includes all the necessary seals and fasteners for a complete overhaul. There is no need to purchase separate spare parts. The dimensions are fully compatible with the R5234785 injector housing structure. During the maintenance process, all worn parts are replaced simultaneously, significantly extending the overall lifespan of the injector. It is suitable for the maintenance of large power diesel injectors for mining excavators and heavy-duty loaders.
Core Advantages of the Single-Piece Kit
A complete set of multiple-sized seals, fully isolating fuel leakage at all points
Includes black circular O-rings, green high-pressure large seals, and square flat sealing pads. Different sizes correspond to all sealing points of the injector's intake port, valve body, housing, and base; the rubber material is resistant to diesel corrosion and 180°C engine compartment high temperatures, and it does not harden or deform under long-term high pressure, eliminating internal and external oil leakage.
High elasticity alloy steel reset spring, stable opening and closing response
Complementary precision compression springs, treated by quenching and tempering, have uniform and long-lasting elasticity. Long-term high-frequency opening and closing will not become fatigued or weak, ensuring the quick reset of the injector needle valve and avoiding shutdown dripping and poor atomization.
Lengthened and divided fastening bolts + stainless steel fixing screws, easy to lock without slipping
The kit distinguishes between long and short dedicated fastening bolts, small stainless steel fixing screws, and matching flat washers. The threads are precisely rolled and formed, with sufficient hardness. The equipment is not prone to loosening or slipping under continuous vibration conditions, and the assembly force is uniform, preventing the housing from deforming and releasing pressure.
Red dust-proof protection cap, protecting the precise oil path during storage and transportation
A matching red plastic protection cap is provided. During maintenance and disassembly, it seals the oil inlet port of the injector to prevent dust and impurities from entering the internal precision components and avoid clogging of the nozzle and valve core sticking.
Standardized matching of the entire set, no additional supplies required for maintenance
All accessory dimensions are customized for the R5234785 injector. One set can complete the complete overhaul of a single injector, eliminating the cumbersome process of separately purchasing seals, springs, and fasteners, and improving the inventory and maintenance efficiency of the repair store.
Sealing materials resistant to aging and oil, suitable for harsh construction site conditions
The seals use fluororubber as the base material, resistant to diesel and hydraulic oil corrosion, and able to withstand dust from the mining area, alternating cold and hot environments. Compared to ordinary rubber, the service life is improved, reducing the frequency of repeated disassembly and repair.
Assembly components list
Multiple-sized circular O-rings (black + green high-pressure seals)
2 pieces of square flat sealing pads
1 high-pressure reset spring
3 lengthened dedicated fastening bolts
4 stainless steel fixing screws + matching flat washers
1 red oil path dust-proof protection cap Applicable scenarios
The R5234785 injector is suitable for large mining excavators, heavy-duty wheeled loaders, and large power diesel generators in mines. It is applicable for the overall overhaul and replacement of electronic control injectors in mining areas under 24-hour full-load, high-temperature, high-dust, and continuous vibration conditions.
Product Basic Parameters
Product Name: R5234785 Injector Maintenance Kit
Compatible Part Number: R5234785
Sealing Material: High-temperature resistant fluororubber
Spring/Gear Material: Tempered alloy steel, stainless steel
Applicable Working Conditions: Ultra-high oil pressure impact, long-term high temperature in the engine compartment, outdoor dust and vibration heavy-duty construction machinery injector maintenance
Product Status: New complete set of maintenance parts, factory completed with sealing, elasticity, and thread accuracy tests
Packaging: Independent plastic-sealed kit packaging, components classified and arranged neatly to prevent scattering and loss. Supports single-piece kits, multiple sets of bulk box batch purchases, and is compatible with cross-border small items / full-box logistics.
