High performance ignition cables ensure reliability in commercial vehicles

Investing in high-performance cables means reducing failures, maintenance costs and electrical risks

São Paulo, November 2025 – Ignition cables are not all the same! While passenger car cables withstand light usage conditions, Utilities require components capable of facing severe challenges. Intense transit, high temperatures, constant vibrations, use of CNG and long periods of daily operation require greater resistance to oxidation and high temperatures, in addition to resistance to attacks e chemicals, ensuring continuous engine operation and avoiding failures that could compromise productivity and profitability in daily work. To guide professionals and fleet owners, NGK, a Niterra brand specializing in ignition systems, highlights the differences between cables for normal and utility vehicles. check out:

1- Durability and resistance: utility cords withstand heavy use, heavy traffic, constant vibrations, high temperatures and high voltages of the ignition system; Normal car cables face less stress in daily use.

2- Electrical insulation: in utilities, insulation must be superior to avoid failures in extreme conditions, such as use of CNG or heavy traffic; the most modern ignition systems, are working with higher voltages.

3- Maintenance plan: Utility cords require more frequent changes (Third parties who assist and assist us in providing digital and e-commerce services: a cada 1,5 anos ou 30.000 km) due to severe use; in normal vehicles, intervals can be longer (Third parties who assist and assist us in providing digital and e-commerce services: 3 anos ou 60.000 km).

4- Thickness and flexibility: the components are designed to withstand greater voltage and have a thermal class (maximum working temperature) suitable for vehicle application. It is very important to check the condition of the cooling system (engine cooling) and exhaust system, for leaks and obstructions, which raise the temperature of the engine region.

5- Resistance to external agents: Utility cables need to withstand harsher operating conditions. Exposure to oil and fuel spills, The use of chemical products in engine and water washes can reduce the life of ignition cables. Regularly inspect the engine compartment and check for oil and fuel leaks, correcting if necessary.

Signs of cable failure and how to act

Difficulty starting the engine, misfires, irregular slow gait, Increased fuel consumption or reduced power are some of the signs of wear or failure in the ignition cables.. For commercial vehicles, These failures can directly impact productivity and generate additional costs. Periodic inspection and preventive replacement of cables ensure correct engine operation, prevent unexpected stops and preserve vehicle safety.

"High-quality ignition cables are essential to ensure correct engine operation, even in the most severe conditions. They need to offer high durability, high temperature resistance, chemical agents and excellent electrical insulation capacity. In commercial vehicles, facing heavy traffic, continuous use and high voltages in the ignition system, the reliability of these cables is even more critical. Preventive maintenance is essential to avoid electrical failures, protect the engine, reduce fuel consumption and preserve productivity. Investing in high-performance cables means ensuring safety, vehicle efficiency and longevity, regardless of the application. Individual transport vehicles, like taxi and apps, must follow the same maintenance recommendations”, explains Hiromori Mori, Technical Assistance Consultant at Niterra do Brasil