1. North American Market

    

   As the main power unit for models such as the Geo/Chevrolet Tracker and Sidekick, it has a large inventory and high circulation of parts, with sufficient supply of used and second-hand components.
    
2. Indian Market

    

   Long equipped in models like the Maruti Suzuki Esteem and Baleno, it serves as the core power option for entry-level cars and small SUVs, supporting stable aftermarket and replacement demand.
    
3. Southeast Asia & Middle East

    

   Widely used in vehicles including the Suzuki APV and Vitara in Indonesia, Thailand, Saudi Arabia, the UAE, etc. Driven by fleet usage and modification needs, parts supply and demand are very active.
    

Key Notes

• The Japanese domestic market mostly uses the G16A (8-valve version), while the G16B (16-valve) is mainly for export markets.
• Although replaced by the M16A after 2001, the G16B remains in supply for models like the APV in Indonesia, targeting the Middle East and African markets.