The quality and supply capability of exhaust aftertreatment parts are key in the commercial vehicle aftermarket.
Jeollanam-do, South Korea, July 31, 2026 - (JCN Newswire) - In Japan's logistics and transportation sector, large commercial vehicles such as trucks and buses continue to play a crucial role. For diesel trucks and buses, which have long driving distances and operating hours, there is a continuous demand for inspection and replacement of after-treatment devices such as DPF, DOC, SCR, and AOC.
As a result, the selection criteria for suppliers have established not only the supply of parts but also consistency in quality, responsiveness to delivery times, and compatibility by vehicle type as major standards. With the ongoing operation of existing vehicles for extended periods, the demand for cleaning, regeneration, and replacement of DPFs continues, increasing the importance of manufacturing partners that can flexibly respond to diverse specifications.
Amid these market changes, South Korea's AUSTEM ExT is actively supplying DPFs to Japan's commercial vehicle aftermarket, with its technical capabilities and supply competitiveness being recognized. Based on the technology accumulated in the field of automotive exhaust gas after-treatment, it supplies a variety of after-treatment products such as DPF, DOC, and SCR, as well as catalyst OEM solutions, continuously expanding its cooperation scope in the Japanese market.

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