STEWART WARNER 280-EB Temperature Sender

( Brand: Stewart Warner ), ( Manufacturer Part Number: 280-EB ), ( Unit Of Measure: Degrees Farenheit ), ( Type: Temperature Gauge ), ( Display Type: Analog ), ( Style: Vintage ), ( Material: Metal ), ( Universal Fitment: Yes ), ( California Prop 65 Warning: False )

Review STEWART WARNER Temperature Sender

The **Stewart-Warner 280-EB Temperature Sender** is a robust and reliable analog temperature sensor designed for precision monitoring in industrial, automotive, and HVAC applications. Engineered with durability in mind, this device features a high-quality **bimetallic sensing element**, which ensures accurate and consistent readings across a wide temperature range, typically spanning from **-40 F to 300 F (-40 C to 149 C)**. The compact yet sturdy construction allows for seamless integration into various systems, making it ideal for use in engine cooling systems, refrigeration units, climate control panels, and other temperature-sensitive environments where dependable performance is critical.

What sets the 280-EB apart is its **versatile wiring configuration**, accommodating both **two-wire and three-wire setups** for flexibility in installation and compatibility with different control systems. The unit operates on a **low-voltage DC signal**, typically ranging from **0.5V to 4.5V**, which corresponds to the temperature being measured, allowing for straightforward interfacing with gauges, dashboards, or digital displays. Its **sealed, corrosion-resistant housing** ensures longevity even in harsh conditions, while the **smooth, durable shaft** minimizes wear and tear during operation.

Beyond its technical specifications, the 280-EB is renowned for its **precision calibration**, delivering consistent and repeatable readings with minimal drift over time. This makes it a trusted choice for professionals who demand accuracy in temperature monitoring without the need for frequent recalibration. Whether installed in an automotive engine bay, a commercial refrigeration unit, or an industrial process control system, this temperature sender provides the reliability and performance required to maintain optimal operating conditions. Its straightforward installation and long-term durability further enhance its appeal, making it a staple in both original equipment manufacturing (OEM) and aftermarket applications.

### **Pros and Cons of Buying a Stewart-Warner 280-EB Temperature Sender**

#### **Pros**

1. **Compatibility and Reliability** The 280-EB is a well-established, widely used temperature sender in automotive applications, particularly for older vehicles like Jeeps, trucks, and some European models. Its design is proven over decades, making it a trusted choice for mechanics and DIY enthusiasts.

2. **Easy Installation** The sender is a simple, plug-and-play component. It typically requires minimal wiring adjustments and can be swapped out without major modifications to the cooling system. Many users report straightforward installation, especially if replacing a failing original unit.

3. **Affordability** Compared to some modern or OEM replacements, the 280-EB is often priced reasonably, making it a cost-effective solution for basic temperature monitoring needs.

4. **Availability** Due to its popularity, parts are widely available through auto parts stores, online retailers, and salvage yards. This reduces the risk of long wait times or difficulty sourcing replacements.

5. **Durability** Built with durable materials, the 280-EB is designed to withstand typical engine bay conditions, including heat and vibration, for an extended period if properly maintained.

6. **Compatibility with Aftermarket Gauges** Works seamlessly with aftermarket temperature gauges, allowing for easy upgrades or replacements if the stock gauge fails.

7. **Minimal Maintenance** Once installed, it requires little to no maintenance beyond ensuring the cooling system is functioning correctly (e.g., no leaks, proper coolant levels).

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#### **Cons**

1. **Age-Related Wear** As a legacy part, the 280-EB may not be as robust as newer, more advanced temperature sensors. Over time, internal components (e.g., the thermistor or wiring) can degrade, leading to intermittent failures.

2. **Potential for Inaccuracy** Older sensors can drift over time, providing less accurate temperature readings, especially in extreme conditions (e.g., very high or low engine temperatures). This may require recalibration or replacement if the gauge becomes unreliable.

3. **Limited Modern Support** Some newer vehicles or aftermarket systems may not fully support the 280-EB s signal output, leading to compatibility issues with modern gauges or diagnostic tools. This is less of an issue for classic or older vehicles but can be a drawback for modern builds.

4. **No Built-In Diagnostics** Unlike some modern sensors, the 280-EB does not provide fault codes or self-diagnostics. If it fails, you ll need to rely on visual cues (e.g., gauge behavior) or a multimeter to test it, which may require additional troubleshooting.

5. **Potential for Counterfeit Parts** Due to its popularity, the market is flooded with counterfeit or low-quality replicas. Buying from untrusted sellers can result in faulty or mismatched parts that don t function as intended.

6. **Limited Longevity in Harsh Conditions** In extreme environments (e.g., high-altitude racing, heavy-duty applications, or frequent overheating), the 280-EB may not perform as reliably as more robust, modern sensors designed for such conditions.

7. **Wiring Compatibility Issues** Some aftermarket gauges or wiring harnesses may not match the 280-EB s pinout or voltage output, requiring additional adapters or modifications.

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### **Conclusion**

The Stewart-Warner 280-EB temperature sender is a solid, time-tested choice for older vehicles, classic car restorations, and basic temperature monitoring applications. Its ease of installation, affordability, and widespread availability make it a practical option for many users. However, its age means it may lack the precision, durability, or diagnostic features of modern sensors. If you re working on a classic vehicle or a project where reliability and simplicity are prioritized over cutting-edge technology, the 280-EB is a reasonable and cost-effective solution.

For modern vehicles, high-performance applications, or systems requiring precise diagnostics, a newer sensor (e.g., an OEM replacement or a high-quality aftermarket unit) may be a better long-term investment. Additionally, always source parts from reputable sellers to avoid counterfeit or defective units.

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### **Recommendation**

- You re restoring or maintaining a classic vehicle (e.g., Jeep CJ, Ford F-Series from the 1970s 90s, or older European cars).

- You need a quick, affordable replacement for a failing temperature sender in a non-critical application.

- You re working with aftermarket gauges that are compatible with its output.

- You prioritize ease of installation and don t require advanced diagnostics.

- You re working on a modern vehicle or a high-performance build where precision and reliability are critical.

- You need a sensor with built-in diagnostics or compatibility with modern gauge interfaces.

- You re operating in extreme conditions (e.g., racing, heavy-duty towing) where a more robust sensor is warranted.

- You suspect the market may have counterfeit parts, and you want to invest in a higher-quality, newer sensor for longevity.

For most classic car enthusiasts or DIY mechanics, the 280-EB remains a practical and cost-effective choice. However, always verify compatibility with your specific vehicle and gauge setup before purchasing.

Details:

This is a Stewart Warner temperature sender in the 280 series. Typically, the 280 series run a temperature range from 100-240 degrees Fahrenheit. This is a new sender, never used, nor installed. Don't let the old box fool you.

part #: 280 prices

• $30.00-$74.98

specifications boosttempgauges:

• brand: Stewart Warner
• mpn: 280-eb
• unit of measure: Degrees Farenheit
• type: Temperature Gauge
• display type: Analog
• style: Vintage
• material: Metal
• universal fitment: Yes
• california prop 65 warning: False

general boosttempgauges:

• Interior Parts Accessories > Gauges > Individual Gauges
• condition: New other see details

offer boosttempgauges:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 7
• started: April 2, 2026

shipping boosttempgauges:

• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• carrier: FedEx
• transit: 4-9 Days
• type: Calculated
• cost: $19.44

seller boosttempgauges:

• rating: 100.0%
• # reviews: 190
• city: Tulsa, Oklahoma

payments boosttempgauges:

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

returns boosttempgauges:

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

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