EATON A8963B Synchro Fuller 7934 ST/2 FS6406
fits model: St.
( Brand: Eaton ), ( Manufacturer Part Number: A8963B )
Review EATON Replaced Synchro Assembly St/2 Nd Fuller For fits ST
The Eaton A8963B 7934 Synchro ST/2 Fuller FS6406 is a high-performance coupling designed for heavy-duty industrial applications. This coupling, manufactured by Eaton, is a part of the Fuller Synchro-Flex brand, which is known for its superior flexibility and excellent shock absorption capabilities.
The A8963B 7934 is a Type ST/2 Fuller Synchro-Flex coupling. It features a two-piece design, with each piece having two sets of teeth. This tooth design provides increased torsional stiffness and reduces the number of teeth in contact during operation, resulting in a longer coupling life. The teeth are also designed to interlock with one another, providing a positive drive connection.
The Fuller FS6406 is the size designation for this coupling. It has a bore size of 6 inches and a length of 40.625 inches. The input and output shafts have keyways and splines, ensuring a secure connection to the driven equipment. The coupling also features a flexible element, which is made of a high-strength elastomer material. This element allows for some degree of angular misalignment between the input and output shafts, reducing the stresses that can lead to premature failure.
The Eaton A8963B 7934 Synchro ST/2 Fuller FS6406 is built to handle high torque loads and is suitable for use in a wide range of industrial applications, including pumps, compressors, generators, and other rotating equipment. It is designed to provide reliable and efficient power transmission, even under heavy loads and extreme operating conditions.
Overall, the Eaton A8963B 7934 Synchro ST/2 Fuller FS6406 is a high-quality, heavy-duty coupling that is ideal for use in demanding industrial applications where reliability and durability are critical. Its unique tooth design, flexible element, and robust construction make it an excellent choice for power transmission applications where equipment misalignment is common or where shock loads are expected.
The Eaton A8963B 7934 Synchro-Starter and Fuller FS6406 are both crucial components in heavy-duty industrial equipment, serving different yet interconnected functions. A synchro-starter is an electrical device used to simplify the starting process of an engine by supplying maximum starting torque, while a full-vision air filter assembly, such as the Fuller FS6406, ensures clean air intake for the engine to improve its performance and longevity.
Pros of Eaton A8963B 7934 Synchro-Starter:1. High torque output: The Eaton A8963B 7934 Synchro-Starter provides a high starting torque, which is essential for heavy-duty applications where the engine needs to overcome significant inertia.
2. Reduced battery drain: The synchro-starter design reduces battery drain since it only draws power during the starting process and does not require a constant draw like a conventional starter.
3. Improved reliability: The Eaton A8963B 7934 Synchro-Starter features a rugged design and robust construction, ensuring reliable operation even in harsh industrial environments.
Pros of Fuller FS6406 Full-Vision Air Filter Assembly:1. Enhanced engine performance: The Fuller FS6406 Full-Vision Air Filter Assembly ensures clean air intake, which is crucial for optimal engine performance and fuel efficiency.
2. Durable design: The Fuller FS6406 is designed to withstand the rigors of heavy-duty industrial applications, providing long-lasting performance and minimal maintenance requirements.
3. Easy access: The full-vision design of the air filter assembly allows for easy inspection and maintenance, reducing downtime and increasing overall equipment effectiveness.
Cons of Eaton A8963B 7934 Synchro-Starter:1. Higher initial cost: Synchro-starters can be more expensive than conventional starters due to their more complex design and higher torque output capabilities.
2. Limited availability: Synchro-starters may not be as widely available as conventional starters, which could impact replacement or maintenance situations.
Cons of Fuller FS6406 Full-Vision Air Filter Assembly:1. Higher replacement cost: The Fuller FS6406 Full-Vision Air Filter Assembly may have a higher replacement cost compared to conventional air filter assemblies due to its superior design and materials.
2. Potential for increased maintenance: The full-vision design of the air filter assembly may require more frequent inspections and maintenance due to its exposed nature.
In conclusion, both the Eaton A8963B 7934 Synchro-Starter and Fuller FS6406 Full-Vision Air Filter Assembly offer unique benefits for heavy-duty industrial equipment applications. The synchro-starter provides high torque output, reduced battery drain, and improved reliability, while the air filter assembly ensures clean air intake, durable design, and easy access. However, both components may have higher initial or replacement costs and potential for increased maintenance.
Based on the pros and cons, it is recommended to consider the specific requirements and operational conditions of your heavy-duty industrial equipment when deciding between the Eaton A8963B 7934 Synchro-Starter and Fuller FS6406 Full-Vision Air Filter Assembly. If maximizing starting torque and reducing battery drain are key priorities, then the synchro-starter may be the better choice. Conversely, if optimizing engine performance, reducing downtime, and ensuring clean air intake are essential, then the full-vision air filter assembly is the recommended option. Ultimately, the decision should be based on a thorough analysis of your equipment's needs and the specific benefits each component offers.
Details:
Designed specifically for trucks, trailers, and buses. Manufactured following Strict OE Standards to work like the original component. Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle. A8963B Replaced A 7934 Synchro Assembly 1 St/2 Nd Fuller Fs6406 for Eaton: Part Number: Manufacturer: Eaton.
Engineered using the latest technology to ensure product lasts longer in service. Made of high-quality components for durability, reliability, and performance.
part #: a8963b prices
- $394.41-$735.98
specifications manutransmission:
- for models: St
- brand: Eaton
- mpn: A8963b
payments manutransmission:
- credit card: Diners-club
- wallet: Google-pay
- other
offer manutransmission:
- sold: 0
- best offers: True
- started: February 23, 2026
- options: Ship-to-home
- availability: In Stock
- quantity: 3
seller manutransmission:
- city: Los Angeles, California
- # reviews: 65376
- rating: 99.2%
general manutransmission:
- Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
- condition: New
shipping manutransmission:
- class: Standard
- service: Standard
- transit: 3-6 Days
- type: Fixed
- cost: $0.00
returns manutransmission:
- policy: Returns Accepted
- time: 30 Days
- paid by: Seller
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