WALKER PRODUCTS 273-10442 Exhaust Temperature Sensor 724620227561 Q50

( Brand: Walker Products ), ( Manufacturer Part Number: 273-10442 ), ( UPC: 724620227561 ), ( Type: Exhaust Temperature Sensor ), ( Features: Direct Fit ), ( Caution: Fitment Is For North America Vehicles ), ( Country Of Origin: Primary ), ( Terminal Type: Factory Connector ), ( Universal Fitment: Direct Replacement ), ( Modified Item: No ), ( Connector Type: Rectangle )

Review WALKER PRODUCTS Exhaust Temperature Sensor Infiniti Q50 fits 2016–2018

The **Walker 273-10442 Exhaust Temperature Sensor** is a precision-engineered, high-performance replacement part designed specifically for the **2016 2018 Infiniti Q50** lineup, ensuring optimal exhaust system functionality and emissions compliance. This sensor is a critical component of the vehicle s **exhaust gas recirculation (EGR) system** and **catalytic converter monitoring**, playing a vital role in maintaining engine efficiency, reducing harmful emissions, and preventing costly diagnostic trouble codes (DTCs) such as **P0420, P0430, or P0456**. Crafted from durable, corrosion-resistant materials, the sensor features a **robust thermocouple junction** and a **high-temperature-resistant ceramic or metal oxide element**, allowing it to withstand extreme heat conditions typically ranging from **ambient temperatures up to 1,000 F (538 C)** without degradation. Its **threaded 18mm x 1.5mm** mounting design ensures a secure, leak-proof fit into the exhaust manifold or downstream piping, while the **OEM-grade connector** guarantees seamless compatibility with the Q50 s wiring harness, minimizing the risk of loose connections or signal interference. Ideal for both **DIY enthusiasts** and professional mechanics, this sensor is backed by **Walker s reputation for reliability**, offering a direct drop-in replacement that restores factory performance, improves fuel economy, and helps avoid premature failure of downstream catalytic converters. Whether addressing a **failing OEM sensor**, a **check engine light (CEL) alert**, or routine preventive maintenance, the **Walker 273-10442** delivers the precision and durability needed to keep your Infiniti Q50 running smoothly and in full compliance with emissions standards.

### **Pros and Cons of Buying a Walker 273-10442 Exhaust Temperature Sensor (2016-2018 Infiniti Q50)**

1. **Compatibility** This sensor is specifically designed for the 2016-2018 Infiniti Q50, ensuring a proper fit without modifications. It is manufactured by Walker, a reputable brand known for quality automotive parts, which helps reduce the risk of incompatibility issues.

2. **Performance and Reliability** A high-quality exhaust temperature sensor ensures accurate readings for the vehicle s engine management system. This can help maintain optimal engine performance, improve fuel efficiency, and prevent potential engine damage from overheating or incorrect sensor data.

3. **Ease of Installation** Since this is an OEM or high-quality aftermarket replacement, it should be straightforward to install, especially if you have basic mechanical experience. The sensor is designed to replace the original part without requiring extensive modifications.

4. **Warranty and Support** Walker products often come with warranties, and the brand has a good reputation for customer support. This provides peace of mind in case of defects or installation issues.

5. **Cost-Effective Alternative to OEM** While not an exact OEM part, this sensor is typically more affordable than purchasing a genuine Infiniti replacement, offering a balance between quality and price.

6. **Prevents Diagnostic Trouble Codes (DTCs)** A faulty exhaust temperature sensor can trigger a check engine light and related codes (e.g., P0171, P0174, or P0500). Replacing it with a reliable sensor can resolve these issues and prevent further engine concerns.

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1. **Potential Quality Variations** While Walker is a trusted brand, aftermarket parts can sometimes vary in quality compared to OEM components. There is a slight risk of receiving a defective or lower-quality sensor, though this is rare with reputable sellers.

2. **Limited Longevity Compared to OEM** Some drivers report that aftermarket sensors may not last as long as the original equipment parts. However, this depends on the specific sensor s build quality and the driving conditions.

3. **Installation Complexity** If you are not experienced with automotive repairs, replacing an exhaust temperature sensor may require careful handling to avoid damaging surrounding components (e.g., wiring harnesses or exhaust system parts).

4. **Compatibility with Modified Vehicles** If your Infiniti Q50 has been modified (e.g., turbocharged, tuned, or aftermarket exhaust systems), the sensor may not perform optimally. In such cases, a high-quality OEM or specialized aftermarket part might be necessary.

5. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (e.g., third-party marketplaces without reviews or authentication) could result in receiving a counterfeit or substandard sensor. Always buy from authorized dealers or well-reviewed suppliers.

6. **No Direct OEM Support** Unlike genuine OEM parts, aftermarket sensors may not qualify for Infiniti dealership warranties or support. If issues arise, you would rely on the manufacturer s warranty or return policy.

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The **Walker 273-10442 exhaust temperature sensor** is a solid aftermarket replacement for the 2016-2018 Infiniti Q50, offering a good balance of affordability, compatibility, and reliability. It is an excellent choice for drivers looking to resolve sensor-related issues without the higher cost of an OEM part. However, it is important to purchase from a reputable seller to avoid counterfeit or low-quality products. If you prioritize maximum longevity and warranty coverage, an OEM replacement may be preferable, though it will cost more.

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- **Buy from a trusted source** (e.g., Amazon, RockAuto, or a reputable auto parts store) to ensure authenticity and quality.

- **Verify the part number and compatibility** before purchasing to confirm it matches your vehicle s year and model.

- **Consider installation difficulty** If you are not comfortable with DIY repairs, consult a professional mechanic to ensure proper installation and avoid potential damage.

- **Monitor performance post-installation** If the check engine light persists or new issues arise, have the system scanned for additional faults.

- **Opt for OEM if budget allows** If you want the longest lifespan and full warranty coverage, a genuine Infiniti sensor may be worth the investment.

For most drivers, the **Walker sensor is a practical and cost-effective solution** that will effectively resolve exhaust temperature sensor issues in the 2016-2018 Q50.

Details:

Rotating Electrical. Terminal Type: Factory Connector. UPC: CAUTION: Fitment is for North America vehicles.

Manufacturer Part Number: 273-10442. Features: Direct Fit. Tire Chains And Accessories. Radiators And Cooling.

MPN: 273-10442. Walker Products Exhaust Temperature Sensor fits 2016 2018 Infiniti Q50: MSRP: $201.24. Condition: New. Country of Origin Primary: DE.

Brand: Walker Products. Timing Parts/Kits-Valve Train.: Exhaust Temperature Sensor.

part #: 27310442 prices

• $103.50-$126.76

specifications emissyste:

• for makes: Infiniti
• for years: 2016-2018
• brand: Walker Products
• mpn: 273-10442
• upc: 724620227561
• type: Exhaust Temperature Sensor
• features: Direct Fit
• caution: Fitment Is For North America Vehicles
• country of origin: Primary
• terminal type: Factory Connector
• universal fitment: Direct Replacement
• modified item: No
• connector type: Rectangle

seller emissyste:

• # reviews: 14073
• city: Portland, Oregon
• rating: 99.9%

offer emissyste:

• sold: 0
• quantity: 4
• started: May 13, 2026
• options: Ship-to-home
• availability: In Stock

shipping emissyste:

• service: Expedited
• transit: 3-7 Days
• class: Expedited
• cost: $0.00
• type: Fixed

payments emissyste:

• other
• credit card: Diners-club
• wallet: Apple-pay

returns emissyste:

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

general emissyste:

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

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