Mitsubishi Fuso Truck & Bus Corp. said Wednesday it is recalling a total of about 42,000 trucks and buses due to five defects, two of which were found much earlier.

In one of the five cases, Mitsubishi Fuso, which had been involved in a series of defect coverups, will recall some 37,000 vehicles manufactured from 1998 to 2004 due to a defect in the clutch system. The attachment device is not strong enough and could crack, making gear changes impossible.

The clutch problem is among 15 defects found more than a year ago that the company reported to the Land, Infrastructure and Transport Ministry on Tuesday.

Another recall is intended to repair more than 1,000 large buses because of a problem in the air compressor for the braking system. The defect surfaced when the the company looked at old repair documents.

Mitsubishi Fuso tried to secretly fix the defect in 1997, according to the firm's in-house investigation.