ALLISON 29511309 Automatic Transmission Pressure Switch Sensor

( Brand: Allison ), ( Manufacturer Part Number: 29511309 ), ( Model: APPLICABLE TO ALLISON 29511309 ), ( Type: Sensor / Switch ), ( Country Of Origin: United States )

Review ALLISON Automatic Transmission Pressure Switch Sensor

The Allison 29511309 Automatic Transmission Pressure Switch Sensor is an essential component in maintaining the optimal performance of Allison automatic transmissions. This sensor is responsible for monitoring the transmission fluid pressure and sending an electrical signal to the transmission control module (TCM) when the fluid pressure falls below the desired level.

The sensor is designed with a robust and durable construction, making it suitable for the harsh operating conditions of heavy-duty vehicles. It features a compact, oval-shaped design, with dimensions of approximately 2.25 inches in length, 1.5 inches in width, and 0.75 inches in height. The sensor is also equipped with a threaded connection, allowing it to be easily installed onto the transmission housing.

The Allison 29511309 Automatic Transmission Pressure Switch Sensor employs a thermal switch design, which relies on the temperature of the transmission fluid to determine pressure. When the fluid temperature drops, causing the fluid to expand and increase pressure, the sensor sends a signal to the TCM to engage the transmission's clutch packs. Conversely, when the fluid temperature rises, causing the fluid to contract and decrease pressure, the sensor sends a signal to the TCM to disengage the clutch packs.

The sensor is made of high-quality materials, including a stainless steel housing and a thermistor element made of a heat-sensitive material. The thermistor element is designed to have a stable and reliable response to temperature changes, ensuring accurate pressure readings.

Installation of the Allison 29511309 Automatic Transmission Pressure Switch Sensor is relatively straightforward. The sensor is typically located near the transmission cooler or oil cooler, and can be installed using the provided hardware. It is recommended that the sensor be installed by a qualified technician, as improper installation can result in transmission damage or other issues.

In summary, the Allison 29511309 Automatic Transmission Pressure Switch Sensor is an essential component in ensuring the optimal performance of Allison automatic transmissions. Its robust and durable design, combined with its accurate pressure sensing capabilities, make it a reliable and effective solution for monitoring transmission fluid pressure in heavy-duty vehicles.

Buying the Allison 29511309 automatic transmission pressure switch sensor involves considering its potential benefits and drawbacks. Here are some pros and cons to help you make an informed decision:

1. Ensures Proper Transmission Functioning: A faulty transmission pressure switch sensor can cause various issues, including hard shifting, delayed shifting, or even transmission damage. Replacing the faulty sensor with a new one can help ensure proper transmission functioning and prevent further damage.

2. Improves Shifting Performance: A new transmission pressure switch sensor can improve shifting performance by providing accurate pressure readings to the transmission control module. This can result in smoother and more consistent shifts.

3. Long-Term Cost Savings: Replacing the transmission pressure switch sensor is a more cost-effective solution compared to replacing the entire transmission. This can save you a significant amount of money in the long run.

4. Easy Installation: The transmission pressure switch sensor is a relatively easy component to replace, and the process typically does not require specialized tools or extensive mechanical knowledge.

1. Cost: While the cost of the sensor itself may not be high, the overall cost of the repair can be significant due to the labor costs associated with removing and replacing the sensor.

2. Diagnostic Complexity: Diagnosing a faulty transmission pressure switch sensor can be a complex process, as it may require the use of specialized diagnostic equipment and a deep understanding of transmission systems.

3. Potential for Additional Repairs: A faulty transmission pressure switch sensor may be a symptom of a larger issue within the transmission system. Replacing the sensor may uncover the need for additional repairs, which can add to the overall cost.

The decision to buy the Allison 29511309 automatic transmission pressure switch sensor depends on various factors, including the cost of the repair, the severity of the symptoms, and the DIY skills of the individual. While the sensor may be a relatively inexpensive component, the overall cost of the repair can be significant. However, replacing the sensor is a more cost-effective solution compared to replacing the entire transmission, and it can help improve shifting performance and prevent further damage. Ultimately, if you are experiencing transmission issues, it may be worth considering replacing the transmission pressure switch sensor as a potential solution.

If you are experiencing transmission issues and suspect that the transmission pressure switch sensor may be the culprit, it may be a good idea to have the sensor tested or replaced as a first step. You can purchase the Allison 29511309 automatic transmission pressure switch sensor from a reputable parts supplier, and consider performing the repair yourself to save on labor costs. Alternatively, you can take your vehicle to a qualified mechanic for diagnosis and repair. Regardless of the approach you choose, be sure to follow all safety precautions and consult the relevant repair manuals or resources to ensure a successful repair.

Details:

part #: 29511309 prices

• $53.00-$259.06

specifications induservo:

• brand: Allison
• mpn: 29511309
• model: Applicable To Allison 29511309
• type: Sensor / Switch
• country of origin: United States

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• cost: $0.00
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• started: May 10, 2026
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