fits year: 1980.

( Brand: Stewart Warner ), ( Manufacturer Part Number: 823704 ), ( Type: Oil Pressure Gauge ), ( Display Type: Analog ), ( Brand Family: Sw ), ( Era: Mid Century To Late 20th Century ), ( Testing: Untested ), ( Style: Vintage ), ( Gauge Type: Pressure ), ( Material: Metal ), ( Vintage Part: Yes ), ( Country Of Origin: United States )
The **Stewart Warner 823704 Pressure Gauge (80 SW Press Meter)** is a robust, high-performance instrument designed to deliver precise and reliable pressure measurements in a wide range of industrial, commercial, and mechanical applications. Engineered with durability and accuracy in mind, this gauge features a **3/4-inch (19mm) NPT male connection**, making it versatile for integration into various piping systems, hydraulic lines, or pneumatic circuits. Its **80 psi (pounds per square inch) range** ensures it is well-suited for low-to-moderate pressure monitoring, such as in HVAC systems, automotive diagnostics, refrigeration units, or light-duty hydraulic setups, where consistent and dependable readings are critical. The gauge s **front-mounted dial** with a **black-and-white graduated scale** provides clear, easy-to-read measurements, while the **aluminum case** offers protection against corrosion and physical damage, extending its operational lifespan in demanding environments.
Built with **Stewart Warner s reputation for quality**, this pressure gauge incorporates a **bourdon tube mechanism**, a time-tested design known for its responsiveness and accuracy. The **sealed, oil-filled system** within the gauge minimizes friction and wear, ensuring long-term stability and reducing the need for frequent recalibration. The **durable brass housing** not only enhances resistance to pressure fluctuations but also contributes to the gauge s overall sturdiness, making it ideal for applications where reliability is non-negotiable. Whether installed in a workshop, on a mobile service vehicle, or as part of a fixed infrastructure, this gauge delivers consistent performance under varying conditions, from temperature shifts to minor vibrations.
For added convenience, the **823704 s compact yet sturdy design** allows for easy mounting on panels, walls, or directly into systems where space may be limited. Its **standard 3/4-inch NPT thread** ensures compatibility with most industry-standard fittings, reducing the need for additional adapters. Additionally, the gauge s **low-maintenance construction** means users can focus on their operations without worrying about frequent servicing or calibration just a quick visual check of the needle position to confirm pressure levels. Whether used for routine maintenance, troubleshooting, or continuous monitoring, the Stewart Warner 823704 Pressure Gauge stands as a dependable tool for professionals who demand precision without compromise. Its blend of affordability, durability, and accuracy makes it a standout choice for both new installations and replacements in a variety of technical applications.
### Pros and Cons of buying a Stewart-Warner 823704 Pressure Gauge (80 SW Press Meter)
#### **Pros:**1. **Reliability and Durability** Stewart-Warner is a well-established brand known for producing high-quality pressure gauges. This model is designed for industrial and automotive applications, suggesting it can withstand regular use and varying pressure conditions.
2. **Accurate Readings** The gauge is likely calibrated for precision, making it suitable for applications where accurate pressure monitoring is critical, such as in automotive systems, HVAC, or hydraulic setups.
3. **Compatibility** The 80 SW designation indicates it is designed for systems operating within a specific pressure range (commonly 0-80 PSI or similar, depending on the application). It is often used in air brake systems, compressors, and other pneumatic applications.
4. **Easy Installation** Many Stewart-Warner gauges feature standard connections (e.g., -inch NPT or similar), making them straightforward to install without requiring specialized tools.
5. **Affordability** Compared to some high-end industrial gauges, this model is reasonably priced, offering good value for its performance and durability.
6. **Wide Availability** As a widely used model, replacement parts and accessories are likely easy to find, reducing downtime if maintenance is needed.
7. **Durable Housing** The gauge is typically housed in a sturdy metal casing, protecting it from physical damage and environmental factors like moisture or dust.
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#### **Cons:**1. **Limited Pressure Range** The gauge is likely designed for a specific pressure range (e.g., 0-80 PSI). If your application requires higher or lower pressures, this gauge may not be suitable, and you would need a different model.
2. **Basic Design** Unlike some high-end gauges, this model may lack advanced features such as digital displays, remote monitoring, or programmable alarms. It is primarily an analog gauge.
3. **Potential for Wear Over Time** Like all mechanical gauges, the internal components (e.g., the bourdon tube and movement) can degrade over time, leading to inaccuracies. Regular calibration may be necessary.
4. **No Backlit or Large Display** If you need to read the gauge in low-light conditions, the lack of a backlit or oversized display could be a minor inconvenience.
5. **Replacement Costs** While the gauge itself is affordable, if it fails, replacing it may be necessary, especially if it is part of a critical system.
6. **Compatibility with Modern Systems** Some newer automotive or industrial systems may require gauges with specific mounting or connection types. Ensure the 823704 fits your system s requirements.
7. **No Warranty on Purchases from Unauthorized Sellers** If buying from a third-party seller (e.g., eBay, Amazon), the warranty may not be transferable or may be limited compared to purchasing directly from a dealer or manufacturer.
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### **Conclusion:**The Stewart-Warner 823704 pressure gauge is a solid, dependable choice for applications requiring a basic yet reliable analog pressure gauge. It excels in durability, accuracy, and ease of use for standard pneumatic or automotive systems. However, it may not be ideal for high-precision or high-pressure applications, nor does it offer advanced features found in more modern gauges.
If you need a gauge for a straightforward, low-to-moderate pressure system (e.g., air brake systems, compressors, or basic HVAC), this model is a practical and cost-effective option. For applications requiring higher precision, digital readouts, or specialized features, you may need to consider more advanced alternatives.
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### **Recommendation:** **Buy the Stewart-Warner 823704 if:**- You need a reliable, analog pressure gauge for a standard application (e.g., air brake systems, compressors, or automotive use).
- You prioritize durability and ease of installation over advanced features.
- You are working within the gauge s specified pressure range.
- You prefer a well-known brand with good availability of replacement parts.
**Consider alternatives if:**- You require a gauge with a higher pressure range or more precise readings.
- You need digital or remote monitoring capabilities.
- Your application involves harsh environments where additional protection (e.g., explosion-proof or corrosion-resistant housing) is necessary.
- You want a gauge with a warranty from an authorized dealer.
For most general-purpose uses, this gauge is a sound investment. Always verify compatibility with your specific system before purchasing.
This listing is for a vintage Stewart Warner pressure gauge, part #823704, featuring the classic black face SW design with 80 PSI scale. Rear terminals and mounting hardware are present, the housing retains its original finish. A solid example of mid century SW design with strong display value. The gauge shows honest age and wear consistent with vintage automotive instrumentation, clear numerals, intact glass, the original SW block logo at bottom of dial.
This gauge is untested and offered as is, ideal for restoration projects, hot rod builds, period correct dashboards, or collectors of Stewart Warner instrumentation.