Standard Motor Products HZS248 Heated Oxygen Sensor

The Standard Motor Products HZS248 is a direct-fit heated oxygen sensor (HO2S) engineered to restore precise air/fuel ratio monitoring to your vehicle's engine management system. Designed as a direct OEM replacement, this sensor helps maintain optimal combustion efficiency, reduce harmful emissions, and protect fuel economy.

Standard Motor Products manufactures this sensor to meet or exceed original equipment specifications, ensuring reliable performance and a proper fit without modification. The integrated heating element brings the sensor up to operating temperature quickly, allowing closed-loop fuel control to engage faster — even during cold starts.

Key Features:

• Direct OEM replacement heated oxygen sensor (HO2S)
• Integrated heater element for fast warm-up and stable closed-loop operation
• Zirconia sensing element for accurate exhaust gas oxygen measurement
• Engineered to meet or exceed OEM specifications
• Helps restore proper fuel trim, idle quality, and emissions compliance
• Designed for reliable, long-service-life performance

The HZS248 is part of Standard Motor Products' premium sensor line, trusted by professional technicians for decades. Replacing a faulty oxygen sensor can resolve rough idle, poor fuel economy, failed emissions tests, and an illuminated Check Engine Light (MIL).