1. Engine Cooling Components Deals
  2. sku: 20608388459360773
  3. API TECH 91NMWB

API SERVICE TECH 91NMWB Water Temperature Sensor

fits make: Lexus. year: 2013–2016.

91nmwb Api Service Tech Water Temperature Sensor Fits Lexus Gs450h 2007-2011 2013-2016

( Brand: Api Service Tech ), ( Manufacturer Part Number: 91NMWB ), ( Part Type: Sensor ), ( Compatible Make/model: Lexus Gs450h ), ( Compatible Years: 2007 2008 2009 2010 2011 2013 2014 2015 2016 07 08 09 10 11 13 14 ), ( Fitment Info: Service Tech ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review API SERVICE TECH Water Temperature Sensor Lexus 2007 2011 fits GS450H 2013–2016

The **91NMWB Water Temperature Sensor** is a precision-engineered automotive sensor designed exclusively for Lexus GS450h models produced between **2007 and 2011**, as well as the **2013 to 2016** iterations of this hybrid luxury sedan. This high-performance sensor plays a critical role in maintaining optimal engine efficiency, ensuring seamless hybrid system operation, and protecting the vehicle s cooling system from overheating. Crafted from durable, corrosion-resistant materials, the sensor features a robust **thermistor-based design**, allowing for accurate real-time temperature readings of the engine coolant, which are essential for the hybrid powertrain s adaptive power management. The sensor s **OEM-grade quality** ensures compatibility with Lexus s advanced engine control module (ECM), providing precise feedback to regulate fuel injection, cooling fan operation, and hybrid battery thermal management. Its **threaded, gasket-sealed housing** guarantees a secure and leak-proof installation, preventing coolant leaks that could compromise engine performance or trigger warning lights. Whether replacing a failed original sensor or upgrading for enhanced reliability, this aftermarket part is built to meet or exceed Lexus s stringent manufacturing standards, delivering long-term durability and consistent performance. Ideal for mechanics, DIY enthusiasts, or hybrid vehicle owners seeking a direct fitment solution, this sensor is a vital component for preserving the integrity of the GS450h s hybrid system while ensuring smooth, efficient operation under varying driving conditions.

### Pros and Cons of buying a API Service 91NMWB Water Temperature Sensor for Lexus GS450h (2007 2011, 2013 2016)

#### **Pros:**

1. **Compatibility and Fitment** The sensor is specifically designed for the Lexus GS450h models listed, ensuring a proper fit without modifications. This reduces the risk of installation issues or misalignment, which can lead to leaks or improper readings.

2. **Quality and Reliability** API Service is a well-known brand in the automotive aftermarket, known for producing high-quality sensors and components. The 91NMWB sensor is likely built to meet or exceed OEM standards, providing consistent performance and durability.

3. **Easy Installation** As an OEM replacement or direct-fit part, the sensor should be straightforward to install, especially if you have basic mechanical skills. It should plug into the same connectors and mount in the same location as the original, minimizing downtime.

4. **Cost-Effective Solution** Replacing a faulty water temperature sensor is often cheaper than waiting for a complete failure that could damage the engine or cooling system. Purchasing a new sensor upfront prevents potential long-term repairs.

5. **Preventative Maintenance** A failing temperature sensor can lead to inaccurate gauge readings, poor fuel efficiency, or even engine damage if the cooling system fails. Replacing it proactively can avoid these issues.

6. **Warranty and Support** API Service parts typically come with warranties, and the brand offers customer support in case of defects or installation problems. This provides peace of mind compared to generic or unknown brands.

7. **Compatibility with Modern Diagnostics** The sensor is designed to work with the vehicle s onboard diagnostics (OBD-II) system, ensuring that error codes (e.g., P0115, P0116, P0117, P0118) are accurately detected and resolved.

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#### **Cons:**

1. **Potential Counterfeit Concerns** While API Service is a reputable brand, counterfeit parts can sometimes enter the market. Buying from unauthorized sellers or untrusted online platforms may result in a substandard or fake sensor. Always purchase from verified dealers or authorized retailers.

2. **Limited Longevity Compared to OEM** While high-quality aftermarket sensors like this one are durable, they may not last as long as genuine OEM parts, which are often designed for the specific lifespan of the vehicle. However, this is a minor concern for most drivers, as sensors typically fail due to age or electrical issues rather than wear.

3. **Installation Complexity for Non-Mechanics** Although the sensor is designed for easy installation, some users may find it challenging if they lack experience with automotive electrical or cooling system work. Improper installation (e.g., overtightening, incorrect routing) could damage the sensor or surrounding components.

4. **Price Sensitivity** While the sensor is reasonably priced for an aftermarket part, some buyers may prefer to wait for a sale or compare prices across different brands. However, this is a subjective concern and depends on budget priorities.

5. **Compatibility with Modified Vehicles** If the Lexus GS450h has been modified (e.g., forced induction, custom cooling systems), the sensor may not account for these changes. In such cases, a custom or high-performance sensor might be necessary.

6. **Potential for Incompatible Adaptors** In rare cases, the sensor s wiring harness or connector may not match the vehicle s original setup perfectly, requiring additional adaptors or modifications. This is uncommon for direct-fit parts but is worth verifying before purchase.

7. **Environmental Factors** The sensor is exposed to coolant, which can degrade over time due to contamination or coolant breakdown. While the sensor itself is robust, the surrounding system s health (e.g., coolant condition, hoses) should also be checked to ensure longevity.

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### **Conclusion:**

The API Service 91NMWB water temperature sensor is a **strong aftermarket replacement option** for the Lexus GS450h (2007 2011, 2013 2016). Its **reliability, compatibility, and ease of installation** make it a practical choice for both DIY enthusiasts and professional mechanics. The sensor addresses common issues like inaccurate temperature readings, cooling system malfunctions, and potential engine damage caused by sensor failure.

However, **buyers should exercise caution** to avoid counterfeit parts by purchasing from trusted sources. While the sensor is not flawless, its **cost-effectiveness and performance improvements** outweigh the minor drawbacks for most owners. If the vehicle has been heavily modified or if there are concerns about the cooling system s overall health, a thorough inspection of related components (e.g., thermostat, hoses, coolant) is recommended alongside the sensor replacement.

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### **Recommendation:** **Purchase the API Service 91NMWB water temperature sensor** if:

- You are experiencing symptoms of a failing sensor (e.g., erratic temperature gauge, check engine light with related codes, overheating concerns).

- You want a **direct-fit, high-quality replacement** that is easy to install and compatible with your vehicle.

- You prefer an **aftermarket part with a good reputation** over waiting for an OEM replacement (which may not be available or cost more).

**Take these steps before buying:**

1. **Verify the sensor s compatibility** with your exact model year and trim (some years may have slight variations).

2. **Check for counterfeit parts** by buying from authorized dealers, Amazon, or reputable automotive parts stores.

3. **Inspect the cooling system** alongside the sensor replacement to ensure no other components (e.g., thermostat, hoses) are failing.

4. **Follow installation guidelines carefully** to avoid damage to the sensor or surrounding components.

**Avoid buying if:**

- You are unsure about the sensor s authenticity and cannot confirm the seller s legitimacy.

- You are on a tight budget and can wait for a sale or alternative (though this sensor is generally affordable).

- Your vehicle has extensive modifications that may require a specialized sensor.

**Final Verdict:** The API Service 91NMWB sensor is a **reliable and cost-effective solution** for restoring proper temperature readings and preventing cooling system failures in the specified Lexus GS450h models. With proper installation and sourcing, it provides a **long-term fix** without major drawbacks.

Details:

12 Month Warranty. Years: Vehicle: Fitment Notes: With White Connector, 2015 - 2016 Lexus GS450h. API Water Temperature Sensor fits Lexus GS450h 2007 - 2011, 2013 - 2016 91NMWB: Brand: condition: New Detailed Applications Years: Vehicle: 2013 - 2014 Lexus.

part #: 91nmwb price

  • $65.21

specifications ocoosys:

  • for makes: Lexus
  • for years: 2013-2016
  • brand: Api Service Tech
  • mpn: 91nmwb
  • part type: Sensor
  • compatible make/model: Lexus Gs450h
  • compatible years: 2007 2008 2009 2010 2011 2013 2014 2015 2016 07 08 09 10 11 13 14
  • fitment info: Service Tech
  • manufacturer warranty: 12 Month Warranty
  • attention: Read Full Description To Confirm Fitment
  • cs-sku: 400

returns ocoosys:

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

payments ocoosys:

  • wallet: Google-pay
  • other
  • credit card: Discover

general ocoosys:

  • condition: New
  • Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components

shipping ocoosys:

  • cost: $0.00
  • transit: 2-6 Days
  • class: Economy
  • type: Fixed
  • service: Economy

offer ocoosys:

  • availability: In Stock
  • sold: 0
  • quantity: 1
  • options: Ship-to-home
  • started: March 26, 2026

seller ocoosys:

  • city: Cohasset, Massachusetts
  • rating: 99.1%
  • # reviews: 23416
for makes: lexus, for years: 2013-2016, part type: sensor, compatible make/model: lexus gs450h, compatible years: 2007 2008 2009 2010 2011 2013 2014 2015 2016 07 08 09 10 11 13 14, fitment info: service tech, manufacturer warranty: 12 month warranty, attention: read full description to confirm fitment, cs-sku: 400,
category: auto parts > car truck parts accessories > engine cooling components, sku: 20608388459360773,
Api Service Tech 91NMWB Is Similar To:
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2 offers $65.21–$65.21 USD
  • New. Offer #1 priced at $65.21 + $0.00 shipping estimate = $65.21* total. 12 Month Warranty 2007-2011, 2013-2014 Lexus GS450h.FREE SHIPPING
  • New. Offer #2 priced at $65.21 + $0.00 shipping estimate = $65.21* total. FREE SHIPPING

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