ECAT NO, 433 ,JINSHAZHOU ,BAIYUN DIST.GUANGZHOU CHINA +86-13602795678 [email protected]
Designed for precise exhaust gas analysis, our O2 sensors feature thimble-type zirconia elements (99.7% purity) and dual-cell technology for faster response times. Five-wire wide-band sensors enable continuous lambda control (0.6-1.4λ), while four-wire narrow-band sensors provide reliable on-off switching (0.45V threshold) for efficient fuel management. Platinum electrodes (99.9% purity) resist poisoning from sulfur and lead, with protective Al2O3 coatings ensuring 100,000+ mile durability. Compatible with high-performance engines like BMW N54, Nissan RB26DETT, and Subaru EJ20, these sensors undergo rigorous humidity testing (95% RH, 1,000 hours) and high-temperature exposure (850°C, 500 hours). We offer direct replacements for OE part numbers 234-4641, 192400-3130, and 89465-12030, accompanied by detailed installation guides for correct gap positioning (10-15mm from the exhaust port). The O2 sensors are essential for maintaining optimal air-fuel ratios, improving fuel efficiency and reducing emissions.