WALKER PRODUCTS 1004-1028 Nitrogen Oxide Nox Sensor 724620229008

( Brand: Walker Products ), ( Manufacturer Part Number: 1004-1028 ), ( Type: Nitrogen Oxide ), ( Manufacturer Warranty: 90 Day ), ( UPC: 724620229008 )

Review WALKER PRODUCTS Nitrogen Oxide Nox Sensor

The **Walker 1004-1028 Nitrogen Oxide (NOx) Sensor** is a high-performance, precision-engineered diagnostic tool designed specifically for advanced emissions testing and troubleshooting in modern diesel and gasoline-powered vehicles equipped with selective catalytic reduction (SCR) systems, diesel particulate filters (DPF), or exhaust gas recirculation (EGR) configurations. This robust sensor is engineered to accurately measure and monitor nitrogen oxide (NOx) emissions a critical pollutant regulated by stringent environmental standards providing technicians and engineers with real-time data to diagnose exhaust system inefficiencies, catalyst degradation, or sensor malfunctions. Built with a durable, corrosion-resistant housing and a high-sensitivity ceramic sensing element, the 1004-1028 delivers reliable readings even in harsh operating conditions, including high-temperature exhaust streams and fluctuating engine loads. Its compact yet rugged design ensures compatibility with a wide range of diagnostic equipment, including handheld analyzers, portable emissions testing (PET) devices, and laboratory-grade gas analyzers, making it an indispensable asset for both shop-based diagnostics and on-road emissions compliance testing. The sensor s wide measurement range typically spanning from parts per million (ppm) to several hundred ppm ensures accuracy across a broad spectrum of engine operating modes, from idle to full throttle, while its fast response time minimizes latency in detecting sudden changes in NOx levels. Whether used for preventive maintenance, emissions certification, or troubleshooting post-repair issues, the Walker 1004-1028 NOx sensor empowers professionals to maintain compliance with emissions regulations, optimize engine performance, and extend the lifespan of aftertreatment systems. Its seamless integration with diagnostic software further enhances its utility, allowing for detailed data logging, trend analysis, and comparative diagnostics to pinpoint the root causes of elevated NOx readings. Ideal for automotive repair shops, fleet maintenance operations, and environmental testing laboratories, this sensor represents a fusion of precision engineering and practical functionality, ensuring dependable performance in the most demanding applications.

**Pros and Cons of buying a Walker 1004-1028 Nitrogen Oxide (NOx) Sensor**

The Walker 1004-1028 is a replacement NOx sensor designed for certain diesel engines, particularly those manufactured by Walker Engineering. Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **Compatibility** This sensor is specifically engineered to fit Walker-equipped diesel engines, ensuring a proper fit without modifications. It is commonly used in applications such as heavy-duty trucks, buses, and industrial equipment where Walker aftermarket exhaust systems are installed.

2. **Improved Emissions Compliance** NOx sensors monitor nitrogen oxide emissions, which are regulated in many regions. A functioning sensor helps maintain compliance with emissions standards, reducing the risk of failing emissions tests or triggering warning lights.

3. **Enhanced Engine Performance** A faulty NOx sensor can lead to incorrect fuel delivery, reduced power, or increased fuel consumption. Replacing a failing sensor with a high-quality unit like the Walker 1004-1028 can restore optimal engine performance and efficiency.

4. **Durability** Walker is a reputable manufacturer in the aftermarket parts industry, known for producing reliable sensors that withstand harsh operating conditions, including high temperatures and vibration.

5. **Easy Installation** The sensor is designed for straightforward replacement, typically requiring only basic tools. Many users report that it can be installed in under an hour, minimizing downtime.

6. **Cost-Effective Solution** Compared to OEM (Original Equipment Manufacturer) sensors, this aftermarket part is often more affordable while maintaining comparable quality. It can be a budget-friendly alternative without sacrificing performance.

7. **Warranty and Support** Walker offers warranties on their sensors, providing some level of protection against defects. Additionally, their customer support can assist with installation or troubleshooting if issues arise.

---

### **Cons**

1. **Limited Compatibility** This sensor is **not universal** and is specifically designed for Walker-equipped engines. Attempting to use it in a vehicle or machine without a Walker exhaust system may result in poor performance or damage. Always verify compatibility with your engine s make, model, and emissions system before purchasing.

2. **Potential for Counterfeit Parts** Like many aftermarket components, there is a risk of purchasing a counterfeit or low-quality imitation. Buying from unauthorized sellers or untrusted retailers can lead to a faulty sensor that fails prematurely.

3. **Emissions System Dependence** If your vehicle s emissions control system (e.g., diesel particulate filter, selective catalytic reduction, or EGR system) is malfunctioning, replacing just the NOx sensor may not fully resolve emissions-related issues. A thorough diagnostic check is recommended.

4. **Sensor Lifespan** While Walker sensors are durable, they are not indestructible. NOx sensors can degrade over time due to exposure to exhaust gases, extreme temperatures, or contamination. Replacement intervals may vary based on usage and environmental conditions.

5. **Professional Installation May Be Required** While the sensor is designed for easy replacement, some users particularly those unfamiliar with emissions systems may benefit from professional installation to ensure proper calibration and functionality.

6. **Price Sensitivity** Although this sensor is often cheaper than OEM parts, it may still represent a significant investment for some buyers, especially if they are replacing multiple sensors or dealing with recurring issues.

7. **Potential for False Positives/Negatives** In rare cases, a new sensor may not function correctly due to manufacturing defects or improper handling. If symptoms persist after replacement, further diagnostics may be necessary.

---

### **Conclusion**

The Walker 1004-1028 NOx sensor is a **reliable and cost-effective replacement option** for vehicles and equipment equipped with Walker exhaust systems. Its strengths lie in its **specific compatibility, durability, and ease of installation**, making it a practical choice for those experiencing NOx sensor failures. However, its **limited compatibility** and the risk of counterfeit parts are notable drawbacks that buyers must consider.

For most users with Walker-equipped diesel engines, this sensor provides a **good balance of performance and affordability**. It is particularly beneficial for those looking to **restore emissions compliance, improve engine efficiency, or avoid costly OEM replacements**.

---

### **Recommendation**

If you are certain that your engine requires a Walker 1004-1028 sensor (verify compatibility with your vehicle s make, model, and emissions system), purchasing from an **authorized Walker dealer or a trusted aftermarket parts supplier** is strongly advised. This minimizes the risk of counterfeit products and ensures you receive a genuine, high-quality sensor.

- **Diagnose the issue** to confirm that the NOx sensor is indeed faulty (symptoms may include check engine lights, reduced power, or poor fuel economy).

- **Check for other emissions-related problems** (e.g., clogged DPF, faulty EGR valve) that could affect performance.

- **Follow installation guidelines** carefully, and consider professional help if unsure.

For those outside Walker s compatibility range, explore **OEM or other aftermarket NOx sensors** that match your specific engine requirements. Always prioritize **quality and authenticity** to avoid costly mistakes.

Details:

Part Numbers. Walker Products. This part fits vehicles made in the following years 2014 ,2015,2016,2017,201 8,2019,2020,2021,2022,2023,2024.

part #: 10041028 prices

• $275.00-$413.49

specifications emissyste:

• brand: Walker Products
• mpn: 1004-1028
• type: Nitrogen Oxide
• manufacturer warranty: 90 Day
• upc: 724620229008

seller emissyste:

• city: Los Angeles, California
• # reviews: 3092
• rating: 98.8%

general emissyste:

• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
• condition: New

payments emissyste:

• credit card: Visa
• wallet: Apple-pay
• other

offer emissyste:

• started: June 2, 2026
• availability: In Stock
• quantity: 8
• options: Ship-to-home
• sold: 0

returns emissyste:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

shipping emissyste:

• service: Economy
• transit: 4-9 Days
• cost: $0.00
• class: Economy
• type: Fixed

Walker Products 1004-1028 Is Similar To:

• 250-25029 Walker Products Oxygen Sensor (57.8% similar) ...(May 3rd, 2017)
• 2502250 Walker Products Oxygen Sensor (59.1% similar) It is impossible to calculate all overseas shipping prices. 6l 4AFE engine Cali - RSV corolla 5l 5EFE engine 1995 peso if you refuse to pay any fees due and the item will still all shipping that are incurred. 6l 1990 prim us shipping contact for exact charges if location is outside the ...(January 4th, 2018)
• 25024546 Walker Oxygen Sensor Priced Each 724620015670 (32.4% similar) The oxygen sensor in your mini reads fuel air mixture and calculated to ecu what level mix is optimum for performance. Walker - oxygen sensor priced each mfg: have a check engine light on and throwing codes, this might be your answer. If you would like to request a quote have this product shipped ...(December 13th, 2018)
• 273-10097 Walker Products Exhaust Gas Temperature Egt Sensor 724620084300 (41.9% similar) Exhaust gas temperature get sensor. Walker Products. 12112, 148000144, 27177, 5S10102, EGR434, ETS10097, ETS93, SU11555. New condition...(January 29th, 2022)
• 273-10199 Walker Products Exhaust Gas Temperature Egt Sensor 724620068119 (41.9% similar) About the part. New condition...(February 11th, 2022)
• 273-10063 Walker Products Exhaust Temperature Sensor Month Warranty 724620084676 (38.2% similar) New condition...(February 16th, 2022)
• 11788611294 Walker Oxygen Sensor Downstream 724620130342 (31.8% similar) Mfg#: 11788611294. Their signals are used by the vehicle computer to adjust the air/fuel ratio and test vehicle emissions. New condition...(March 2nd, 2022)
• 273-10412 Walker Exhaust Gas Temperature Egt Sensor For Dodge (37.5% similar) Type: exhaust gas temperature get sensor. Label: Walker Products. 2007 -2009 dodge sprinter 2500 3.0L v6 diesel t5 - before PDF. 2007 -2009 dodge sprinter 3500 3.0L v6 diesel t5 - before PDF. New condition...(May 11th, 2022)
• Walker Products 273-10333 Walker Premium 100 Oem Quality Exhaust Temperature S (41.5% similar) Walker Products 27310333 Walker Products 273-10333 exhaust gas temperature get. Walker Products. New condition...(June 3rd, 2022)
• Temperature Sensor Walker Products 1003-1026 (48.4% similar) Part #: 1003-1026. New condition...(July 2nd, 2022)
• Walker Products 273-10403 Temperature Sensor (61.1% similar) Part #: 273-10403. New condition...(July 12th, 2022)