Premium Stainless Steel Construction - Crafted from high-grade 304 stainless steel for superior corrosion resistance and durability in harsh engine environments.

Precision Engineered Freeze Expansion Plugs - CNC-machined with ±0.01mm tolerance for perfect fitment in water jackets, preventing coolant leaks under extreme temperature fluctuations.

Universal Automotive Application - Direct replacement for OE part 190003989001, compatible with most gasoline/diesel engines in passenger cars, trucks, and heavy equipment.

Thermal Shock Resistance - Specially hardened alloy withstands -40°C to 150°C cycles without deformation, ideal for cold climate regions.

Mirror-Finished Surface - Electropolished to 0.2μm smoothness for optimal seal against cylinder block/head mating surfaces.

Bulk Purchase Advantage - Factory-direct pricing with MOQ discounts available for repair shops and wholesale distributors.