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1.Sample order is accepted.

2.70% of our popular selling products are in stock, which make sure quickly delivery. Normally, orders can be send out within 5 working days.

3.Time is Gold -You will receive all goods exactly on time .

4.We are professional in engine oil supply system;

The c-aterpillar 135-5459 is a premium efficiency-focused HEUI (Hydraulic Electronic Unit Injector) specially developed for c-aterpillar 3126, 3126B and 3126E diesel engines, designed to address the pain points of difficult cold startup, high fuel consumption and carbon deposit buildup in medium and high-hour 3126 series machinery, serving as a direct OEM-grade replacement that balances cost efficiency and long-term reliability. Unlike previous 3126 injectors that prioritize high-load power or idle stability alone, this model is optimized for dual core performance: ultra-fast cold start response and precision fuel metering for full combustion, with a unique anti-carbon deposit nozzle design and low-temperature resistant internal components to eliminate common faults such as long startup delay, white smoke at ignition, uneven fuel atomization and gradual power decline. Manufactured with high-density wear-resistant materials and precision CNC machined parts, it undergoes full-range flow calibration and cold-temperature simulation testing before delivery, ensuring stable performance in both cold winter construction sites and regular heavy-duty operations, and features 1:1 OEM size matching for quick,

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