Published Date: [2026.3.10]
Author: Shandong Shanqingsong International Trade Co., Ltd. SQS
Category: Technical Solutions | Global Emission Compliance
SQS, as a professional automotive parts manufacturer specializing in global exports, is committed to providing cost-effective and highly practical automotive repair solutions for global partners. The Mini Three-way Catalytic Converter is specifically designed for the global aftermarket of automotive parts, aiming to help dealers, repair shops and car owners efficiently and economically solve the problems related to three-way catalytic converter failures.
As the service life of vehicles increases, the aging and reduced efficiency of three-way catalytic converters (TWC) have become a widespread problem worldwide. These issues not only trigger the engine fault light to illuminate and cause the exhaust emissions to fail to meet international standards, but also require the replacement of original TWC units, which costs thousands of dollars and imposes a heavy financial burden on car owners. The mini three-way catalytic converters, with their advantages of being small, portable, easy to install, and high cost-effectiveness, have become a practical new choice for car owners, auto repair shops, and auto parts distributors worldwide. They provide a convenient and economical solution for the malfunction of TWC in old vehicles.
This mini three-way catalytic converter breaks through the limitations of traditional three-way catalytic components, which are large in size and difficult to install. It adopts a miniaturized design, with a compact and exquisite body and a light weight. It can easily be adapted to the rear oxygen sensor positions of various global vehicle models (passenger cars, commercial vehicles). Without the need for complex tools, even non-professionals can complete the installation quickly: simply screw the shield onto the exhaust pipe, then install the rear oxygen sensor on the shield, clear the fault codes, and it can be used normally. The entire process does not require modifying the vehicle's exhaust system, saving time and labor costs for repair shops and car owners.
As a practical accessory specifically designed to address the faults of three-way catalytic converters, this product boasts remarkable core advantages. It is equipped with a honeycomb-shaped small three-way structure, which can precisely block the fault codes caused by the aging or low efficiency of the three-way catalytic converter, effectively extinguishing the engine fault indicator light, facilitating the vehicle's successful passing of the OBD annual inspection, and solving the problems of non-compliant exhaust emissions and constantly illuminated fault indicator lights in old vehicles. At the same time, the product is made of high-quality materials that are resistant to high and low temperatures and corrosion, suitable for the harsh working environment of the vehicle's exhaust system. It is not prone to aging or damage, has a long service life, and can function stably for a long time, fully meeting the needs of the global automotive repair and after-sales market.
Compared to the high cost of replacing the original factory three-way catalytic converter, which can often reach several hundred dollars, this mini three-way catalytic converter offers extremely high value for money. It only costs 6 dollars to solve the core problem, significantly reducing the maintenance costs for car owners. At the same time, it provides more competitive product solutions for auto repair shops and dealers, and is highly recommended by auto repair professionals. It is a necessary emergency accessory. Moreover, the product is highly versatile, compatible with all vehicle models and years (including Asian, European, and American models), and can effectively shield common three-way catalytic converter-related fault codes such as P4020, P0421, and P0422. It is widely applicable to the global auto parts aftermarket.
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