Oxygen Sensor For Mazda 3 BK 1.6L Heated Z602-18-861A Compatible With 2003-2014 Models
Meet the WEIDA Auto Parts Z602-18-861A heated oxygen sensor, a precise replacement designed for Mazda 3 models from 2003 to 2014. This 4‑wire, heating-equipped sensor mirrors the OEM specifications to deliver reliable, accurate oxygen readings essential for optimal engine management. Built for Mazda 3 1.4L and 1.6L engines, it helps the engine control unit calibrate air-fuel mix quickly, improving response, reducing emissions, and supporting smoother startup across seasons. Made to Wolfram-style OEM tolerances, this sensor is a durable, direct-fit option that keeps your exhaust system running cleanly and efficiently.
Benefits & Tips
- Faster heater warm‑up: The built‑in heating element reduces sensor response time in cold starts, helping the engine reach optimal combustion sooner.
- Better emissions control and fuel economy: Accurate O2 readings enable precise fuel trimming, contributing to lower exhaust emissions and improved efficiency over time.
- Reliable replacement: Replacing a worn sensor with Z602-18-861A supports consistent idle, stable fuel trims, and reduces the risk of triggering related engine warning lights.
Product specifications
- Brand: WEIDA AUTO PARTS
- Part / OEM No.: Z602-18-861A
- Vehicle fitment: 2003–2014 Mazda 3 (M3 1.4L & 1.6L)
- Sensor Type: Piezoelectric
- Type: Heating
- Wiring: 4‑wire
- Hysteresis: Z602-18-861A
- Measuring Range: for 2003–2014 Mazda 3 M3 1.4L–1.6L
- Repeatability: 90
- Resolution: Oxygen Sensor
- Sensitivity: WEI DASensor
- Origin: Mainland China
Package includes:
- 1 x Z602-18-861A Heated Oxygen Sensor for Mazda 3 (2003–2014)
Warnings/Reminders
- Professional installation recommended to ensure proper fit and sealing.
- Verify vehicle compatibility (2003–2014 Mazda 3 with 1.4L–1.6L engines) before installation.
- Handle sensor with care to avoid damage to the sensor element or wiring; allow the exhaust system to cool before replacement.
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