The SM 8477 is an industrial-grade Alternator Rectifier Assembly specifically engineered for the Toyota Innova (including the 2.5L D-4D Diesel and 2.0L/2.7L Petrol variants). Utilizing a specialized DEN.TYPE (Denso Type) architecture, this "Heavy" variant is reinforced to handle the high electrical loads of the Innova’s dual-zone climate control, aftermarket accessories, and high-capacity battery charging requirements typical of long-distance commercial and family travel.