KAI Tests Eighth Commuter Line Trainset, with Improvements on Previous Version

JAKARTA – PT Kereta Api Indonesia (KAI) is preparing the eighth Commuter Line trainset to meet increased demand for travel after passenger numbers reached 303.79 million between January and October 2026.

“From January to October 2026, Commuter Line Jabodetabek served 303.79 million passengers, averaging one million passengers per working day,” KAI President Director Bobby Rasyidin said when contacted on Saturday (7 November 2026).

He said the high passenger numbers made the safety, readiness and reliability of Commuter Line rolling stock essential.

Bobby personally inspected the readiness and reliability of the new Commuter Line trainset—the eighth trainset (TS) produced by state-owned railway manufacturer PT Industri Kereta Api (Persero), or INKA—at the Depok Electric Multiple Unit Depot in West Java.

Accompanied by KAI Commuter’s Technical Director and INKA’s technical team, Bobby checked that the trainset was ready to serve Commuter Line passengers.

“INKA’s trainset has already undergone several tests,” he said.

The final trial is scheduled for mid-November 2026. The trainset is planned to enter service for Commuter Line passengers in early December.

Bobby said many improvements had been made compared with the previous version, particularly to components that had frequently encountered problems.

“INKA has identified areas for improvement through innovation and re-engineering, using better techniques and engineering,” he said.