⚡ Tune smarter, drive cleaner — never miss a beat with Marsflex precision!
The LSU 4.9 5-Wire Lambda WideBand O2 Oxygen Sensor by Marsmotor is a high-precision, OE-spec sensor designed for seamless integration with AEM X Series AFR controllers. Featuring a durable 40-inch cable and robust construction, it enhances engine performance, fuel efficiency, and catalytic converter longevity. Tested extensively and backed by a 1-year warranty, this sensor guarantees reliable, accurate air-fuel ratio monitoring for professional-grade tuning.
| Manufacturer | Marsmotor |
| Part number | APEL14003 |
| Item Weight | 191 g |
| Product Dimensions | 15.01 x 5.51 x 5.51 cm; 191 g |
| Item model number | 17025 |
| Size | 17025 |
| Style | Compatible,Digital |
| Material | 17025 |
| Wattage | 7.5 watts |
| Item Package Quantity | 1 |
| Measurement Accuracy | Go & No-go Gauge |
| Plug profile | Car Mount |
| Specific uses | Oxygen Sensor |
| Included components | 1. 17025 Lambda WideBand O2 Oxygen Sensor 2. Oxygen Sensor Instruction Manual |
| Batteries included? | No |
| Batteries Required? | No |
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