You can get a RepairPrice Estimate for this service using the RepairPal Estimator.
Please go to https://repairpal.com/estimator/mitsubishi/montero+sport
And Search for the Service Type: "Drive Belt(s) Replacement".
RepairPal Certified shops can diagnose and repair your 1998 Mitsubishi Montero Sport. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.