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🚗 Feel the power of precision—upgrade your ride with Marsflex O2 Sensor!
The Marsflex Oxygen O2 Sensor 234-4668 is a high-quality upstream heated sensor designed for Chevy, GMC, Cadillac, and related models (2003-2013). Engineered to OE specifications, it offers precise oxygen measurement with a fast 22-second response time, durable construction rated up to 930°C, and easy installation. This sensor improves engine efficiency, fuel economy, and extends catalytic converter life, backed by a 1-year warranty for reliable performance.














| ASIN | B08YRTN1CD |
| Best Sellers Rank | #1,123,426 in Automotive ( See Top 100 in Automotive ) #6,192 in Automotive Replacement Oxygen Sensors |
| Brand Name | Marsflex |
| Current Rating | 0.95 A |
| Customer Reviews | 4.0 4.0 out of 5 stars (347) |
| Included Components | 1. 234-4668 O2 Oxygen Sensor 2. Oxygen Sensor Instruction Manual |
| Item Dimensions | 5.91 x 2.17 x 2.17 inches |
| Item Highlight | Fit for Chevy,Silverado,Suburban,Avalanche,Tahoe,Malibu,Impala,GMC,Yukon/XL,Sierra,Cadillac,Replace 15284,250-24470 |
| Item Weight | 0.12 kg |
| Lower Temperature Rating | 150 °C |
| Manufacturer | Marsmotor |
| Material Type | 234-4668 |
| Maximum Supply Voltage | 12 volts |
| Measurement Accuracy | Go & No-go Gauge |
| Measuring Range | λ=0.7- ∞ |
| Model | 234-4668 |
| Mounting Type | Flange Mount |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Type | Analog |
| Part Number | APEL14001 |
| Response Time | 22 seconds |
| Sensing Distance | 100 centimeters |
| Specific Uses For Product | Oxygen O2 Sensor |
| Style Name | Upstream |
| Unit Count | 1 Count |
| Upper Temperature Rating | 930 °C |
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