
SA-1146N Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $34.00 | Condition is Good, Allison Transmission Detroit Diesel Allison Mt Series Parts Catalog, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $25.00 | Condition is Used, Allison Transmissions MT Series Parts Catalog SA1146N, shipping cost = $10.95 | 99.6% |

The Allison SA-1146N transmission, as featured in the Detroit Diesel catalog, is a heavy-duty automatic transmission specifically designed for tackling the most demanding applications in various industries, including construction, mining, oil and gas, and waste handling. Exhibiting superior performance, durability, and versatility, this transmission allows users to take on the most strenuous tasks with unwavering confidence.
The SA-1146N transmission boasts a 5-speed design, offering excellent power capacity up to 1,750 horsepower and torque ratings up to 4,200 lb-ft. The transmission utilizes Michelin proprietary shifting technology, resulting in smoother and quicker shifts when compared to previous models. This advanced design helps ensure optimum productivity, maximum fuel economy, and reduced emissions by allowing the engine to operate in its most efficient power range at all times.
Constructed using the highest quality materials, this transmission features beryllium copper clutches which provide exceptional heat resistance and durability, while also reducing weight. Additionally, the clutch packs are supported by a robust splined aluminum drum to further enhance their lifespan. Each component is precision engineered to operate in the harshest environments, ensuring a long service life and minimal downtime.
The Allison SA-1146N transmission comes equipped with an advanced cooling system that allows for increased engine efficiency and improved equipment reliability. The system includes an oversized oil cooler, a reversing cooler, and unique airflow management designed to enhance heat dissipation. This robust cooling system helps protect against overheating and maintains the transmission's performance even under the highest loads.
The SA-1146N also features the renowned Allison Controllab system, allowing for easy integration with vehicle control systems, engine sensors, and transmission algorithms. This system enables custom programming and adaptation to specific applications as well as advanced diagnostic capabilities.
In summary, the Allison SA-1146N transmission, found in the Detroit Diesel catalog, is a high-performance, heavy-duty automatic transmission specifically engineered for demanding applications. With its 5-speed design, advanced Michelin shifting technology, heavy-duty construction, and innovative cooling system, this transmission offers superior performance, extended lifespan, and robust capabilities.
The Allison SA-1146N transmission, a heavy-duty automatic transmission manufactured by Allison Transmission, is a popular choice for various industrial and off-road applications that utilize Detroit Diesel engines. Here are some pros and cons that can help guide your decision when considering purchasing this transmission.
Pros:1. Durability: The Allison SA-1146N is known for its robustness and longevity, making it an ideal choice for demanding applications that require high wear resistance and minimal downtime.
2. Versatility: This transmission offers a wide range of input and output speeds, making it suitable for various applications, including those with varying power requirements and vehicle speeds.
3. Efficiency: The SA-1146N boasts excellent fuel efficiency, which not only helps minimize operating costs but also reduces the environmental impact of the application.
4. Multiple Applications: The SA-1146N is widely used across various industries, such as construction, forestry, mining, and oil and gas, to name a few, making it a popular choice among those operating heavy machinery.
Cons:1. Cost: The SA-1146N is a premium transmission option and tends to be more expensive compared to other available solutions.
2. Complexity: The SA-1146N is known for its intricate design, which can make maintenance and repair more challenging and time-consuming than other transmissions.
3. Limited Compatibility: While the SA-1146N is compatible with Detroit Diesel engines, it might not be an option for applications powered by different engine brands or models.
In conclusion, the Allison SA-1146N transmission has several advantages, such as its durability, versatility, efficiency, and wide array of applications. However, it also has some disadvantages, including its high cost, complexity, and limited compatibility.
Considering the overall benefits, if your application requires a heavy-duty transmission for a Detroit Diesel engine, the Allison SA-1146N transmission could be an excellent investment due to its proven reliability and performance. Conversely, if your budget is limited or if your application requires a less complex or more economical solution, alternative transmission options may be worth exploring. Ultimately, it is crucial to weigh the specific requirements of your project and your budget before making a decision.
Details:
specifications heavymanualbooks:
- brand: Allison
- mpn: Sa-1146n
- compatible equipment make: Detroit Diesel
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- started: february 10, 2025
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- prices: $25.00–$34.00
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