You save 2,630 (33%)
33% off the seller list price
Estimated doorstep delivery by 13 Nov - 15 Nov from USA
Enhance Engine Performance at a Competitive Price
Marsflex LSU 4.9 5-Wire Lambda WideBand O2 Sensor, 17025, is designed for accurate oxygen measurement in Indian vehicles, ensuring optimal engine performance. Its aerospace-grade stainless steel housing and high-temp ceramic core withstand extreme conditions, providing durability and reliability. Rigorously tested for 10,000+ hours and 500 thermal cycles, it offers a lifespan of 80,000-100,000km, backed by a 12-month warranty. Easy to install with a total length of 40 inches, it fits OE specifications for seamless integration.
This sensor helps maintain the ideal air-fuel ratio (14.7:1), supporting fuel economy improvements of 5-15% and reducing emissions. Its anti-interference chip ensures precise signals even in dusty or water-prone environments, common in India. Compatible with AEM and other wideband gauges, it is a trusted choice for performance enthusiasts and daily drivers alike.
Imported directly from the USA, Marsflex sensors are factory-sealed and include all duties. They are a reliable upgrade over local alternatives, which often lack durability or precision. For Indian vehicle owners seeking high-quality, long-lasting oxygen sensors, this product offers a proven solution with fast delivery and comprehensive warranty.
Precision Engineering for Indian Vehicles
Marsflex LSU 4.9 sensors feature aerospace-grade stainless steel and high-temp ceramic cores, ensuring durability against dust, water, and heat. Rigorously tested for 10,000+ hours, they deliver reliable signals for accurate air-fuel ratio measurement, supporting fuel economy and emission reduction in Indian driving conditions.
Ideal for Daily & Performance Use
Designed to fit OE specifications, Marsflex sensors are easy to install and provide consistent performance. They are suitable for daily drivers and performance enthusiasts seeking long-lasting, precise oxygen measurement for Indian vehicles, with a 12-month warranty and factory-sealed quality.
Typical situations where Marsflex LSU 4.9 5-Wire Lambda WideBand O2 Oxygen Sensor 17025 | High-Precision Air Fuel Ratio Sensor helps — illustrative scenarios, not customer reviews.
Rajesh, 35, Delhi, noticed poor fuel economy and rough idling due to old oxygen sensor.
Replaced with Marsflex LSU 4.9, restored proper air-fuel ratio, improved economy by 10%, and reduced emissions within 2 weeks.
| Installation | OE fitment, 40-inch length, flange mount |
| Fuel Efficiency Support | Supports optimal air-fuel ratio, improves economy by 5-15% |
| Replacements | Every 60,000-80,000 km recommended |
| Shelf Life | Factory-sealed, use within 12 months of installation |
CrowCrowCrow helps you bring this product to India. Any warranty is offered by Marsflexunder its own policy.
| Feature | Marsflex LSU 4.9 | Others |
|---|---|---|
| Material & Durability | Aerospace-grade stainless steel housing, high-temp ceramic core, IP67 protection, tested for 10,000+ hours | Typically lower-grade materials, shorter lifespan, less water/dust resistance |
| Lifespan & Reliability | 80,000-100,000 km, backed by rigorous testing and 12-month warranty | Often 30,000-50,000 km, limited warranty, variable quality |
| Signal Precision & Interference Resistance | Anti-interference chip ensures accurate signals in dusty/water environments | Prone to interference, inconsistent readings in Indian conditions |
| Price & Cost-Per-Use | ₹5,230 for 1 unit, approx ₹5,230 per piece | ₹3000-₹5000 per sensor, shorter lifespan, less precise |
| SKU | mpb0180 |
| Brand | Marsflex |
| Model Number | 17025 |
| Size | 17025 |
| Material | Aerospace-grade stainless steel & high-temp ceramic |
| Part Number | APEL14003 |
About Marsflex
Marsflex specializes in high-precision automotive sensors, trusted worldwide for durability and accuracy in demanding conditions.
Compliance & Legal
This is a diagnostic sensor, not a medical device. No medical claims or certifications are applicable.
Share your experience
Bought this from CrowCrowCrow? Other buyers want to hear how it went.
This item:
Marsflex LSU 4.9 5-Wire Lambda WideBand O2 Oxygen Sensor 17025 | High-Precision Air Fuel Ratio Sensor
5,230
This item
Marsflex LSU 4.9 5-Wire Lambda WideBand O2 Oxygen Sensor 17025 | High-Precision Air Fuel Ratio Sensor
5,230
Total price:
23,160
You save 20,900 (47%) Extra3 items selected
3 items
23,160You save 20,900 (47%) Extra
| Attributes | Current |  |  | ||||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 5,230 7,860 | 11,370 26,370 | 6,560 9,830 | 6,560 8,980 | 47,160 67,530 | 10,870 17,110 | 52,110 73,790 |
| Brand Name | Marsflex | NTK | NTK | NTK | Continental | SAFAVIEH | Hoover |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
Why shop with us
One price. One payment. No surprises.
High risk
Buying Direct
Crowcrowcrow
Safe Lane
