Allison CLT 5860 Transmission

In the realm of industrial machinery, the transmission is often the unsung hero, a vital component that ensures power and performance under the harshest conditions. Among the various options available, the Allison CLT 5860 Transmission stands out as a paragon of engineering excellence. Designed for heavy-duty applications, this transmission delivers the robustness and reliability required for some of the toughest jobs in the field. This article delves deep into the specifications, applications, and unique features that make the Allison CLT 5860 a preferred choice for industrial use.


Horse Power and Input Speed:

The Allison CLT 5860 Transmission supports a wide range of horsepower and input speeds, catering to diverse operational needs:

  • Horse Power Min: 325 Hp
  • Horse Power Max: 525 Hp
  • Input Speed Min: 1800 rpm
  • Input Speed Max: 2500 rpm

This flexibility allows it to be tailored to various engines and operational requirements, ensuring optimal performance in different scenarios.

Gearing and Oil Requirements:

The transmission features mechanical gearing with six forward gears and one reverse gear. This setup is crucial for applications requiring precise control and variability in speed and torque. The oil used is C-4, 15W40, with a required quantity of 18 gallons. This ensures the transmission remains well-lubricated and performs efficiently under strenuous conditions.

Mounting and Weight:

The CLT 5860 can be mounted using an SAE No. 1 Automatic Flywheel Housing, with options for Flexplate Drive and Remote Mount Flange applications. This versatility in mounting options makes it suitable for a wide range of machinery. The transmission’s weight ranges from 2200 lbs to 2800 lbs, reflecting its robust build and durability.

Torque Converter Ratios and Control Systems:

One of the standout features of the CLT 5860 is its torque converter ratios, available in TC-680, TC-580, and TC-570. These ratios provide the necessary torque multiplication to handle varying loads effectively. The control systems available include Manual Electronic and Manual Hydraulic options, allowing for precise control over the transmission’s operation.

Optional Engine Driven PTO and Cooler System:

The transmission offers optional engine-driven PTOs (Power Take-Off) with side and top mount options, capable of intermittent or continuous operation. The cooler system is a remote-mounted cooler element, which ensures the transmission operates within optimal temperature ranges, even during extended use.


The Allison CLT 5860 Transmission is designed to handle some of the most demanding industrial applications. Its robust construction and versatile features make it ideal for:

  • Drilling: The transmission’s ability to handle high horsepower and torque makes it perfect for drilling operations, where reliable power delivery is essential.
  • Workover: In well-servicing operations, the CLT 5860 ensures consistent performance and reliability, crucial for maintaining well integrity.
  • Well Service Pumps and Mud Pumps: These applications require precise control and high power, both of which are provided by the CLT 5860’s advanced gearing and control systems.
  • Fracturing and Well Stimulation: The transmission’s robust design and high torque capabilities make it suitable for the intense demands of fracturing and well stimulation.
  • Pumping: For various industrial pumping applications, the CLT 5860 offers the reliability and performance needed to ensure continuous operation.

Features and Benefits

Durability and Reliability:

The Allison CLT 5860 is built to last, with a design that emphasizes durability and long-term reliability. This makes it a cost-effective choice for companies looking to minimize downtime and maintenance costs.

Versatile Control Systems:

The availability of both manual electronic and manual hydraulic control systems allows operators to choose the best configuration for their specific needs. This versatility ensures that the transmission can be adapted to a wide range of applications and operational requirements.

Enhanced Torque Multiplication:

The various torque converter ratios available provide enhanced torque multiplication, essential for handling varying loads and ensuring smooth operation across different scenarios.

Ease of Maintenance:

S&W Power Systems offers fully remanufactured and rebuilt versions of the Allison CLT 5860, ensuring that each transmission is thoroughly tested and guaranteed to perform. This focus on quality and reliability means that maintenance is straightforward and less frequent, further reducing operational costs.

Advanced Cooling System:

The remote-mounted cooler element ensures that the transmission remains within optimal temperature ranges, even during prolonged use. This is particularly important in high-stress applications, where overheating can lead to significant downtime and damage.

Why Choose the Allison CLT 5860?

The Allison CLT 5860 Transmission stands out in the market due to its combination of power, durability, and advanced features. Here’s why it’s a preferred choice for industrial applications:

Proven Performance:

With a track record of reliability and performance, the CLT 5860 has proven itself in various demanding applications. Its robust design and high-quality components ensure that it can handle the toughest jobs with ease.

Tailored Solutions:

S&W Power Systems offers a range of configurations for the CLT 5860, ensuring that customers can find the perfect match for their specific needs. Whether it’s a particular mounting option or a specific torque converter ratio, the flexibility offered by the CLT 5860 is unmatched.

Comprehensive Support:

Choosing the CLT 5860 means gaining access to comprehensive support and service from S&W Power Systems. From initial installation to ongoing maintenance, customers can rely on expert support to keep their operations running smoothly.

Economic Efficiency:

The durability and reliability of the CLT 5860 translate into economic efficiency. With fewer breakdowns and less frequent maintenance, companies can save on operational costs and ensure higher productivity.


The Allison CLT 5860 Transmission is a powerhouse designed to meet the rigorous demands of industrial applications. Its combination of high power, versatile control systems, and robust construction makes it an invaluable asset for operations that require reliability and performance. Whether it’s drilling, well servicing, or any other demanding application, the CLT 5860 delivers the power and precision needed to get the job done right. Investing in this transmission means choosing a solution that offers long-term reliability, economic efficiency, and unmatched performance in the toughest conditions.