
640063 Comparison
| photo | price | summary | rating |
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![]() | $457.69 | Condition is New, Moeller 032527 27 Gallon Permanent Fuel Tank Tempo 640063 Scepter 07135 Marine, FREE SHIPPING | ![]() |

The Tempo 640063 Fuel Tank Deck 27 Sending Unit is a critical component in the fuel monitoring system of heavy-duty vehicles, designed to provide accurate and reliable fuel level readings. This sending unit is specifically designed for use with Tempo's Fuel Tank Deck 27 fuel level sensor, which is installed in the fuel tank to measure the fuel level.
The Tempo 640063 Sending Unit is constructed from high-quality materials, ensuring durability and resistance to harsh operating conditions. It features a robust, corrosion-resistant housing that protects the internal components from fuel and environmental contaminants. The unit is also designed with a waterproof seal to prevent moisture intrusion and ensure reliable operation.
The Tempo 640063 Sending Unit utilizes a float-operated design to measure fuel level. The float inside the unit rises and falls with the fuel level in the tank, which in turn causes a variable resistance in the sending unit. This resistance is then converted into a voltage signal by the vehicle's fuel level gauge or electronic control module.
The unit is capable of providing accurate fuel level readings over a wide range of temperatures, from -40 F to 257 F (-40 C to 125 C). It also features a built-in temperature compensator, which ensures that fuel level readings remain accurate even in extreme temperature conditions.
The Tempo 640063 Sending Unit is easy to install and can be connected to the vehicle's fuel level gauge or electronic control module using standard wiring harnesses. It is compatible with a wide range of fuel level gauges and electronic control modules, making it a versatile solution for heavy-duty vehicles with different fuel monitoring systems.
In summary, the Tempo 640063 Fuel Tank Deck 27 Sending Unit is a high-performance, durable, and accurate component in the fuel monitoring system of heavy-duty vehicles. It is designed to provide reliable fuel level readings over a wide temperature range and is easy to install. Its robust construction and corrosion-resistant housing ensure long-lasting performance, even in harsh operating conditions.
The Tempo 640063 Fuel Tank Sending Unit is a crucial component in the fuel system of vehicles, responsible for sending an accurate fuel level reading to the vehicle's fuel gauge. Let's discuss some potential pros and cons of purchasing this part.
Pros:1. Improved Fuel Gauge Accuracy: A new fuel sending unit can help ensure that the fuel gauge in your vehicle displays an accurate reading of the fuel level, reducing the likelihood of unexpected runouts or overfilling.
2. Potential Cost Savings: If you notice that your fuel gauge is consistently inaccurate, it may be worth investing in a new sending unit to prevent costly trips to the gas station due to incorrect fuel level readings.
3. Increased Vehicle Reliability: A malfunctioning fuel sending unit can lead to various issues, such as incorrect fuel level readings, check engine lights, and even stalling. By replacing the faulty part, you can help maintain the overall reliability and performance of your vehicle.
Cons:1. Installation Complexity: Installing a fuel sending unit can be a challenging task, especially if you're not experienced with vehicle repairs. It may require the draining of the fuel tank and the removal of various components to access the sending unit.
2. Cost: Replacing a fuel sending unit can be an expensive repair, with parts and labor costs varying depending on the specific make and model of your vehicle.
3. Potential for Errors: When installing the new fuel sending unit, there is a risk of introducing errors, such as installing it incorrectly or using the wrong type of unit for your vehicle. This could lead to ongoing issues with fuel gauge accuracy.
Conclusion:Deciding whether or not to purchase a Tempo 640063 Fuel Tank Sending Unit depends on various factors. If you're experiencing issues with your vehicle's fuel gauge and suspect that the sending unit may be the culprit, it may be a worthwhile investment to ensure accurate fuel level readings and prevent potential costly trips to the gas station. However, it's essential to consider the complexity of the installation process, potential costs, and the risk of errors before making your decision.
Recommendation:If you're confident in your ability to install the fuel sending unit yourself or have a trusted mechanic to do it for you, it may be a wise investment to improve the accuracy of your fuel gauge and maintain the reliability of your vehicle. However, if you're unsure about your abilities or the costs, it may be worth considering alternative solutions, such as using a portable fuel gauge or seeking professional advice from a mechanic before making a decision.
Details:
Measurements: 36 l x 12 w 16 h, measurements are tank only, allow 1-3/4 above for fitting connections, tank constructed from cross link polyethylene requires no baffles, fill neck uses 1-1/2.d. Tank grounding device is recommended during installation to prevent static electricity discharge. Fill hose, vent uses 5/8.d. A female, 1/4 not 90 withdrawal rotates 360 to aid during installation of fuel hose.
It is recommended that 3% to 5% expansion areas be allotted in all directions when, installing tank.
specifications inboardfuel:
- for years: 2027
- brand: Tempo
- mpn: 640063
- part type: Fuel Tank Deck Sending Unit
- country of origin: United States
- california prop 65 warning: Yes
seller inboardfuel:
- city: everett, washington
- rating: 100.0%
- # reviews: 3445
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
shipping inboardfuel:
- class: standard
- carrier: usps
- transit: 5-11 days
- type: fixed
- service: usps ground advantage
returns inboardfuel:
- policy: returns accepted
- time: 30 days
- paid by: seller
payments inboardfuel:
- credit card: discover
- wallet: apple-pay
- other
offer inboardfuel:
- sold #: 8
- price: $457.69
- item condition: New
- in stock #: 1
- started: february 12, 2026
- availability: in stock
- options: ship-to-home
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