High-Precision 3M51-9F472/3M52-9G444 Automotive Oxygen Sensor

Premium Material & Craftsmanship
Constructed with high-grade stainless steel and ceramic sensing elements for extreme durability. Advanced laser-welding technology ensures airtight sealing and corrosion resistance.
Universal Compatibility
Direct-fit replacement for Buick, Ford Avalon 2020, and multiple models. OE-equivalent design guarantees plug-and-play installation without ECU recalibration.
Optimal Engine Performance
Real-time air-fuel ratio monitoring reduces emissions by 30% and improves fuel efficiency by 15%. Validated under ISO 9001 standards for precision (±1% error margin).
Industrial-Grade Reliability
Withstands -40°C to 900°C operating range. Reinforced anti-vibration sheath for heavy-duty or off-road use.
Bulk Purchase Advantage
Exclusively priced for wholesalers. MOQ-friendly with OEM packaging. Ships globally with DDP support.
Application Scenarios
Ideal for fleet maintenance, auto repair shops, and DIY enthusiasts seeking OEM-quality aftermarket parts.