FACET 7.3042 Engine Coolant Temperature Sender

( Brand: Facet ), ( Manufacturer Part Number: 7.3042 ), ( Type: Engine Cooling Components Other Engine Cooling Components ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement )

Review FACET Subaru Engine Coolant Temperature Sender Year Warranty fits 1985–1994

The **Facet 7.3042 Engine Coolant Temperature Sender** is a high-performance, precision-engineered sensor designed specifically for Subaru models produced between 1985 and 1994, ensuring optimal functionality and reliability in applications ranging from classic restorations to high-mileage performance builds. This temperature sender is meticulously crafted to meet or exceed OEM specifications, delivering accurate and consistent readings of the engine s coolant temperature, which is critical for proper engine management, fuel efficiency, and overall drivability. Constructed from durable materials, including a robust thermistor element housed within a corrosion-resistant housing, the sensor is engineered to withstand the demanding conditions of high-performance and daily driving environments. Its seamless integration with the vehicle s cooling system ensures that the engine control unit (ECU) receives precise data, allowing for optimal ignition timing, fuel delivery, and cooling system performance. The Facet 7.3042 is particularly well-suited for Subaru engines featuring the **EJ series** or earlier models, where accurate temperature feedback is essential for maintaining peak performance and preventing overheating. Whether used in a meticulously restored classic Subaru or a modified performance application, this sensor provides the reliability and accuracy needed to keep the engine operating at its best, ensuring longevity and efficiency for years to come.

**Pros and Cons of Buying a Facet 7.3042 Engine Coolant Temperature Sender for Subaru (1985 1994 Models)**

### **Pros**

1. **Compatibility and Reliability** The Facet 7.3042 is specifically designed for Subaru engines from 1985 to 1994, ensuring a direct fit without modification. Facet is a well-regarded brand in the automotive aftermarket, known for producing high-quality sensors that meet or exceed OEM standards.

2. **Cost-Effective Replacement** Compared to purchasing an OEM (original equipment manufacturer) sensor, this aftermarket part is significantly cheaper while still providing reliable performance. It eliminates the need for expensive dealer labor or extended warranty waits.

3. **Easy Installation** The sensor is straightforward to replace, requiring only basic tools. Most DIY mechanics can install it in under an hour, saving on labor costs if doing it themselves. Facet sensors often come with clear instructions or wiring diagrams to simplify the process.

4. **Durability and Longevity** Facet sensors are manufactured to withstand the harsh conditions of an engine bay, including heat, vibration, and exposure to coolant. Many users report that these sensors last as long as or longer than OEM parts, reducing the likelihood of frequent replacements.

5. **Warranty and Support** Facet offers warranties on their products, typically covering defects in materials or workmanship for a set period (e.g., 1 2 years). This provides peace of mind in case the sensor fails prematurely. Additionally, Facet s customer service is often responsive to inquiries or issues.

6. **Performance Consistency** A faulty coolant temperature sender can lead to inaccurate readings on the dashboard, potentially causing unnecessary stress on the engine (e.g., delayed cooling fan activation). Replacing it with a reliable sensor like the Facet 7.3042 ensures accurate temperature monitoring, protecting the engine from overheating or inefficient cooling.

7. **Availability and Shipping** Facet parts are widely available through online retailers, auto parts stores, and specialty suppliers. Shipping times are usually quick, reducing downtime for vehicle repairs.

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### **Cons**

1. **Potential Quality Variations** While Facet is a reputable brand, there is always a slight risk of receiving a defective unit, especially if purchasing from a third-party seller (e.g., eBay, Amazon, or lesser-known online stores). Always buy from authorized Facet distributors or well-reviewed retailers to minimize this risk.

2. **Compatibility with Modified Engines** If the vehicle has undergone significant modifications (e.g., turbocharging, forced induction, or custom cooling systems), the stock sensor may not be ideal for the new operating conditions. However, the Facet 7.3042 is designed for stock applications, so modifications may require additional adjustments or a different sensor.

3. **Installation Challenges for Inexperienced Mechanics** While the installation is generally simple, those without mechanical experience may struggle with tasks like removing the old sensor, cleaning the threads, or ensuring a proper seal. Improper installation (e.g., overtightening or cross-threading) can damage the sensor or coolant system.

4. **Compatibility with Aftermarket Gauges** If the vehicle is equipped with an aftermarket temperature gauge, there is a chance the Facet sensor may not be fully compatible, leading to incorrect readings or gauge malfunctions. Always verify compatibility with the gauge s specifications or consult a professional.

5. **Limited Customization** Unlike some high-end sensors, the Facet 7.3042 does not offer customizable features (e.g., adjustable resistance ranges or digital outputs). For most stock applications, this is not an issue, but enthusiasts seeking advanced monitoring may need to explore other options.

6. **Potential for Counterfeit Products** Counterfeit Facet sensors have been reported in the market, particularly on platforms like eBay or Alibaba. These fakes may not function correctly or could fail prematurely. To avoid this, purchase from verified sellers with positive reviews and check for authenticity markings on the sensor.

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### **Conclusion**

The Facet 7.3042 engine coolant temperature sender is an excellent choice for replacing a faulty or worn-out sensor in Subaru models from 1985 to 1994. Its key advantages direct compatibility, cost-effectiveness, ease of installation, and reliability make it a practical solution for both DIY enthusiasts and professional mechanics. The potential downsides, such as the risk of counterfeit products or minor installation challenges, can be mitigated by purchasing from reputable sources and following proper installation procedures.

For most stock applications, the Facet 7.3042 will provide accurate temperature readings, protect the engine, and extend the life of the cooling system. It is a well-balanced aftermarket part that offers a strong alternative to OEM sensors without sacrificing performance.

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### **Recommendation**

If you are replacing a coolant temperature sender in your Subaru (1985 1994), the **Facet 7.3042 is highly recommended** as the best aftermarket option. To ensure the best results:

- Purchase from an authorized Facet distributor or a well-reviewed online retailer (e.g., RockAuto, Amazon, or local auto parts stores).

- Verify the sensor s compatibility with your specific engine and any aftermarket gauges or modifications.

- Follow the installation instructions carefully, ensuring a clean thread and proper sealing to prevent coolant leaks.

- If unsure about installation, consult a mechanic or refer to a detailed repair guide for your Subaru model.

For those seeking additional peace of mind, consider pairing the sensor with a high-quality coolant flush and thermostat check to ensure the entire cooling system is functioning optimally. The Facet 7.3042 is a smart, cost-effective investment that will keep your engine running smoothly.

Details:

For SUBARU 1985 1994 Engine Coolant Temperature Sender Facet 1 YEAR WARRANTY. Brand NEW part with full 1 year warranty. Authenticity Guaranteed. Compatibility.

Drive Assured: Your Source for Authentic Car Parts. Free Fast Shipping. Made By: Facet.: Engine Cooling Components > Other.

Manufacturer Number: #7.3042.

part #: 73042 prices

• $13.59-$25.99

specifications ocoosys:

• for makes: Subaru
• for years: 1985-1994
• brand: Facet
• mpn: 7.3042
• type: Engine Cooling Components Other Engine Cooling Components
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement

shipping ocoosys:

• service: Standard
• type: Fixed
• class: Standard
• transit: 3-8 Days
• cost: $0.00

general ocoosys:

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

returns ocoosys:

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

offer ocoosys:

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

seller ocoosys:

• city: Glendale, California
• rating: 100.0%
• # reviews: 29

payments ocoosys:

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

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