
20T-250-4-1-2 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $52.96 | Condition is New, New 4FT 250 Degree Temperature Gague 10702042 for Murphy 20T-250-4-1/2, FREE SHIPPING | 98.2% |
![]() | $50.86 | Top Pick! Condition is New, New 4FT 250 Degree Temperature Gague 10702042 for Murphy 20T-250-4-1/2, shipping cost = $5.00 | 96.1% |
![]() | $58.00 | Condition is New, Temperature Gauge 20T-250-4-1/2 10702042 For Murphy Line length 1.2 meters=, shipping cost = $4.99 | 97.8% |
![]() | $74.49 | Condition is New, New 4FT 250 Degree Temperature Gague Compatible with Murphy 20T-250-4-1/2 , FREE SHIPPING | 100.0% |
![]() | $76.50 | Condition is New, 10702042 FW Murphy Temperature Gauge 2" 20T Series (20T-250-4-1/2 4FT Capillary), FREE SHIPPING | 100.0% |
![]() | $80.99 | Condition is New, 4FT MURPHY 20T-250-4-1/2 10702042 250 DEGREE TEMPERATURE GAUGE, FREE SHIPPING | 100.0% |
![]() | $85.27 | Top Pick! Condition is New, Murphy by Enovation Controls 20T-250-4-1/2 Temperature Swichgage (10702042), FREE SHIPPING | 100.0% |
![]() | $79.95 | Condition is New, Murphy Switche Temperature Gauge Safety 20t-250-4-1/2, shipping cost = $9.00 | 99.5% |
![]() | $90.16 | Condition is New, 4FT MURPHY 20T-250-4-1/2 10702042 250 DEGREE TEMPERATURE GAUGE, FREE SHIPPING | 99.3% |
![]() | $124.16 | Condition is New, Murphy by Enovation Controls 20T-250-4-1/2 Temperature Swichgage 10702042, FREE SHIPPING | 98.6% |
![]() | $127.99 | Condition is New, Murphy by Enovation Controls 20T-250-4-1/2 Temperature Swichgage (10702042), FREE SHIPPING | 99.6% |
![]() | $193.72 | Top Pick! Condition is New, Murphy 20T250-4-1/2 Temp Swichgage, FREE SHIPPING | 99.4% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $120.00 | Condition is New other (see details), MURPHY A20T-250-4-1/2, shipping cost = $9.14 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $141.30 | Condition is New: Never Used, FW MURPHY SR-21 Temperature Gauge (20T-250-4-1/2), shipping cost = $25.11 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $74.95 | Condition is New – Open box, MURPHY 2" TEMPERATURE SWICHGAGE 10702042 PESSCO IS OFFERING 1 C032923-2-14 , shipping cost = $22.37 | 98.9% |

Introducing the Murphy 20T-250-4-1/2 Switch Gauge Set, a reliable and precise solution for monitoring transmission pressure in heavy-duty applications. This set comprises four individual switch gauges, each designed to deliver accurate readings for optimized performance and maintenance.
The Murphy 20T-250-4-1/2 Switch Gauge Set is engineered to meet the demanding requirements of commercial vehicles, construction equipment, and industrial machinery. Each gauge features a robust, die-cast aluminum housing that withstands the rigors of harsh environments and provides excellent heat dissipation. The dial faces are protected by shatter-resistant, scratch-resistant glass, ensuring durability and longevity.
The switch gauges in this set are designed to monitor transmission pressure, which is vital for maintaining optimal engine performance and preventing damage to the transmission system. The gauges are calibrated to read pressures between 0-250 psi, making them suitable for a wide range of heavy-duty applications.
The switch gauges come with a convenient, built-in pressure switch that allows for easy and accurate pressure monitoring. This feature ensures that the gauge only illuminates when the pressure falls below or rises above the pre-set threshold, providing essential alerts for preventive maintenance and fault detection. The switch is adjustable, enabling users to customize the pressure settings according to their specific requirements.
The Murphy 20T-250-4-1/2 Switch Gauge Set is designed for easy installation and integration into various vehicle and machinery systems. The gauges come with 1/2 NPT threaded connections, making them compatible with standard hose fittings. The set also includes four 16-inch wiring harnesses, simplifying the wiring process and ensuring a secure connection between the gauge and the power source.
In summary, the Murphy 20T-250-4-1/2 Switch Gauge Set is a high-performance, durable, and versatile solution for monitoring transmission pressure in heavy-duty applications. Its robust design, accurate pressure readings, and customizable pressure settings make it an essential tool for optimizing vehicle and machinery performance and ensuring reliable operation.
Pros and Cons of Buying a Murphy 20T-250-4-1/2 Switch Gauge Transpressure Unit
Introduction:The Murphy 20T-250-4-1/2 switch gauge transpressure unit is a popular choice for those seeking to monitor and regulate transmission pressure in their vehicle. Here are some potential advantages and disadvantages to consider before making a purchase.
Pros:1. Accurate readings: The Murphy 20T-250-4-1/2 switch gauge transpressure unit provides precise and reliable readings of transmission pressure, helping you maintain optimal vehicle performance and prevent potential issues.
2. Easy installation: This gauge is designed for simple installation, as it usually requires no drilling and can be mounted on the dashboard or the steering column with clamps or suction cups.
3. Durable construction: The Murphy 20T-250-4-1/2 switch gauge transpressure unit features a robust design, capable of withstanding the harsh conditions of the engine compartment.
4. Multiple pressure readings: This gauge offers multiple pressure readings, allowing you to monitor various aspects of your transmission system, such as oil pressure, line pressure, and shift pressure.
Cons:1. Limited compatibility: The Murphy 20T-250-4-1/2 switch gauge transpressure unit may not be compatible with all vehicle models, so it is essential to verify its suitability before purchasing.
2. Additional cost: Installing a switch gauge transpressure unit like the Murphy 20T-250-4-1/2 may involve additional costs, such as wiring harnesses, sensor kits, or professional installation services.
3. Complex setup: Although the installation process is generally straightforward, configuring the gauge to display accurate readings for different vehicle models and transmission types may require some technical knowledge or assistance.
Conclusion:The Murphy 20T-250-4-1/2 switch gauge transpressure unit offers numerous benefits, such as accurate readings, easy installation, durable construction, and multiple pressure readings. However, it may have limitations in terms of compatibility, additional costs, and a complex setup process. Ultimately, the decision to purchase this gauge depends on your specific needs, technical abilities, and budget.
Recommendation:If you are a DIY enthusiast with a good understanding of vehicle systems and a compatible vehicle, the Murphy 20T-250-4-1/2 switch gauge transpressure unit can be an excellent investment for monitoring and maintaining your transmission pressure. However, if you lack the technical expertise or have a vehicle with complex transmission requirements, it may be advisable to consult a professional mechanic or consider alternative solutions.
Details:
Trans temperature. Red part says speaker on it.
specifications indusswitch:
- brand: Murphy
- mpn: 20t-250-4-1/2
- part type: Water Pressure Switch Gauge
- unit type: Ft
- fuse type: Switch
payments indusswitch:
- wallet: apple-pay
- credit card: discover
- other
offer indusswitch:
- best offers: true
- in stock #: 5
- started: july 7, 2025
- prices: $50.86–$193.72
- item condition:
- New
- New other (see details)
- New: Never Used
- New – Open box
- availability: in stock
- sold #: 23
- options: ship-to-home
seller indusswitch:
- city: talking rock, georgia
- # reviews: 2939
- rating: 100.0%
shipping indusswitch:
- transit: 4-10 days
- class: standard
- carrier: usps
- type: fixed
- service: usps ground advantage
returns indusswitch:
- policy: no returns
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Switches > Accessories
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