The PTO Shaft replacement of the Weasler 12 Series PTO drive shaft is a high-quality, durable component designed for agricultural and industrial machinery. PTO drive shafts are essential for transferring mechanical power from tractors to attached implements, such as mowers, balers, or tillers. The 12 Series PTO shaft is a specific model of PTO shaft known for its robust construction, reliability, and compatibility with a wide range of equipment.
The 12 Series PTO drive shaft is particularly suited for medium-duty applications, making it ideal for tasks that require consistent and efficient power transmission. It features high-strength steel components, precise machining, and a telescoping design that allows the shaft to adjust to different lengths, ensuring a secure connection between the tractor and the implement. Additionally, the PTO drive shaft often includes protective guards to enhance operator safety and reduce the risk of accidents.

Note: Our products are replacement parts and not original equipment. We provide perfect replacement products for original equipment. If you need to purchase the original equipment, please contact the original supplier.
Replacement of Weasler 12 Series PTO Shaft Parts

Tractor Yokes
| Dim. “A” Bore | Dim. “B” |
Spring-Lok | 1 3/8” × 6 Spl. | 4” |
1 3/8” × 21 Spl. | 4” |
Quick Disconnect | 1 3/8” × 6 Spl. | 4” |
1 3/8” × 21 Spl. | 4” |
| Dim. “A” Bore | Dim. “B” | Shear Bolt |
Ball Shear Device With Spring-lok | 1 3/8” × 6 Spl. | 4 5/8” | 5/16” – 18 Gr. 5 |
1 3/8” × 21 Spl. | 4 5/8” | 5/16” – 18 Gr. 5 |
PTO Shaft Cross & Bearing Kit
| Dim. “A” | Dim. “B” |
 | 1 1/16” | 2 1/2” |
Shaft Weld Yoke
| Dim. “A” Bore | Dim. “B” |
With Bearing Groove | 1” × 1 1/8” | 3 3/8” |
15/16” Sq. | 2 3/4” |
Tube Weld Yoke
| Dim. “A” Bore | Dim. “B” Fits Tube Size | Dim. “C” |
With Bearing Groove | 1 1/4” × 1 3/8” | | 3 3/8” |
3/4” | 2” (.083 Wall) | 3 7/8” |
15/16” Sq. | | 2 3/4” |
Shaft
| Length |
1” × 1 1/8” Rectangular | 6'/3′ |
PTO Shaft Tube
| Length | Fits Shaft |
1 1/4” × 1 3/8” Rectangular O.D. | 6' | 1” × 1 1/8” |
3' | 1” × 1 1/8” |
2” (.083 Wall) | 6' | |
3' | |
Slip Sleeve
| Length | Dim. “A” Bore | Fits Tube Size |
With Grease Groove | 5” | 1” × 1 1/8” Rect. | 2” (.083 Wall) |
Implement Yoke
| Dim. “A” Bore | Dim. “B” | Standard Keyway |
Round Bore With Keyway & Set Screw | 3/4” | 3 1/2” | 3/16” |
7/8” | 3 1/2” | 3/16” |
15/16” | 3 1/2” | 1/4” |
1” | 3 1/2” | 1/4” |
1 1/8” | 3 1/2” | 1/4” |
1 3/16” | 3 1/2” | 1/4” |
1 1/4” | 3 1/2” | 1/4” |
1 3/8” | 3 1/2” | 5/16” |
1 1/2” | 3 7/8” | 3/8” |
| Dim. “A” Bore | Double Keyway | Dim. “B” |
Double Keyway & Set Screw | 1” | 1/4” & 3/16” | 3 1/2” |
1 1/8” | 1/4” & 3/16” | 3 1/2” |
1 1/4” | 1/4” & 3/16” | 3 1/2” |
| Dim. “A” Bore | Dim. “B” |
Spline Bore With 1/4” Pin Hole | 1 3/8” × 6 Spl. | 3 1/2” |
1 3/16” × 10 Spl. | 3 1/2” |
0.90” × 13 Spl. w/Set Screw | 3 1/2” |
1 1/8” × 6 Spl. | 3 1/2” |
1 3/8” × 21 Spl. | 3 1/2” |
| Dim. “A” Bore | Dim. “B” |
Shear pin With 1/4” Pin Hole | 1” | 3 1/2” |
1 1/8” | 3 1/2” |
1 1/4” | 3 1/2” |
1 3/8” | 3 1/2” |
| Dim. “A” Bore | Dim. “B” |
Square Bore With Set Screw | 7/8” | 3 1/2” |
1” | 3 1/2” |
1 1/8” | 3 1/2” |
1 1/4” | 3 7/8” |
| Dim. “A” Bore | Dim. “B” |
Hexagon Bore With Set Screw | 1 1/8” | 3 1/2” |
1 1/4” | 3 1/2” |
| Dim. “A” Bore | Dim. “B” | Dim. “C” |
Stock Bore With Hub O. D. Turned | 1/2” | 3 1/2” | 2” |
| Dim. “A” Bore | Dim. “B” |
Slip Yoke | 1“ Sq. | 5 1/4” |
1” Rd. w/1/4” Keyway | 5 1/4” |
1 1/8” Hex | 5 1/4” |
PTO Shaft Universal Joints:
| Dim. “A” Bore | Dim. “B” | Dim. “C” |
Spring Lok to Shaft Weld Yoke | 1 3/8” × 6 Spl. | 1” × 1 1/8” Rect. | 7 1/2” |
Drivelines

Tractor Yoke | Implement Yoke | Overall Compressed Length Dim. “A” | Max Running Length | Application |
1 3/8” × 6 Spl Q.D. | 1 1/4” Rd 1/4” Keyway | 48” | 78” | Post Hole Digger |
1 3/8” × 6 Spl. Spring Lok | 1 1/4” Rd 1/4” Keyway | 48” | 77” | Augers |
Typical Applications of Weasler 12 Series PTO Drive Shaft
The 12 Series PTO drive shaft is a versatile and reliable component commonly used in agricultural and industrial applications. Its primary purpose is to transfer mechanical power from a tractor or other power source to attached implements, enabling the operation of machinery essential for various tasks. The 12 Series is designed for medium-duty applications, making it ideal for equipment that requires consistent and efficient power transmission. Here are some of the typical applications of the PTO drive shaft:
- Rotary Mowers and Cutters: One of the most common uses of the Weasler 12 Series is in rotary mowers and cutters. These implements are used for cutting grass, weeds, and brush in fields or pastures. The PTO drive shaft transfers power from the tractor to the mower blades, ensuring smooth and effective cutting performance.
- Hay Balers: The 12 Series PTO drive shaft is frequently used to power hay balers, which compact cut hay into dense, manageable bales. The shaft ensures that the baler's internal mechanisms, such as rollers and knotters, operate smoothly and efficiently.
- Tillers and Cultivators: In soil preparation, the replacement of Weasler 12 Series is used in tillers and cultivators to break up soil, incorporate nutrients, and prepare fields for planting. The PTO shaft provides the necessary power to drive the rotating tines or blades.
- Post Hole Diggers: For fencing or construction projects, the Weasler 12 Series is essential in powering post hole diggers. These tools require significant torque to dig deep, uniform holes in the ground.
- Manure Spreaders: The 12 Series PTO drive shaft is also used in manure spreaders, which distribute organic material evenly over fields. It powers the spinning mechanism responsible for spreading the manure.
- Snow Blowers: In winter applications, the 12 Series can power snow blowers, which remove snow by throwing it away from the path being cleared. The PTO shaft ensures the impeller and auger systems operate effectively.

Advantages of Using the Weasler 12 Series PTO Shaft
The replacement of Weasler 12 Series PTO Shaft offers several advantages that make it a preferred choice for power transmission in agricultural applications:
- Durable and Long-Lasting Construction: The 12 Series PTO shaft is built with high-strength steel components that ensure durability and resistance to wear and tear. Its robust design allows it to withstand the harsh conditions of agricultural environments, making it a reliable choice for demanding applications.
- Versatility Across Implements: This PTO shaft is compatible with a wide range of agricultural equipment, including mowers, balers, tillers, and more. Its adaptability makes it suitable for farmers who use multiple implements, reducing the need for specialized shafts for different machines.
- Telescoping Design for Flexibility: The 12 Series features a telescoping design that allows for length adjustment, ensuring a proper fit between the tractor and implement. This flexibility accommodates varying distances and enhances the ease of connecting and disconnecting machinery.
- Enhanced Safety Features: The PTO shaft comes with optional protective guards to shield operators from moving parts, reducing the risk of injury during operation. These safety features are crucial in maintaining a secure working environment on the farm.
- Efficient Power Transfer: Engineered for medium-duty applications, the 12 Series delivers consistent and efficient power transmission. This ensures optimal performance of equipment, improving productivity and reducing the likelihood of mechanical failures during critical tasks.
- Ease of Maintenance: The Weasler 12 Series PTO drive shaft is designed to be low-maintenance, with easily accessible components for lubrication and servicing. Its simple maintenance requirements minimize downtime, allowing farmers to focus on their work rather than equipment repairs.

Why Choose AGKNX's Agricultural PTO Shaft?
AGKNX specializes in developing, manufacturing, and marketing PTO shafts, industrial cardan shafts, car driveshafts, u-joint coupling shafts universal joints, etc. The annual turnover is 60 million RMB, 9 million dollars, and it's increasing year by year. Our products gained a great reputation from Europe, America, Asia, Australia, and North American customers. We are among the top 3 professional OEM suppliers for many agricultural implement factories in the domestic market. We already have the CE, TS/16949, and ISO9001 certificates and systematic manufacturing equipment and QC team to guarantee our quality and delivery. We warmly welcome every friend to visit us and establish a mutually beneficial long-term relationship cooperation.
Advantages of AGKNX:
- Safety Shield Types and Colors Based on Your Requirements: We offer a variety of safety shield types and colors to meet your specific needs. Whether you require shields for agricultural or industrial applications, we can customize designs to ensure durability and compliance with safety standards, providing optimal protection.
- Wide Range of Universal Joints: Our product range includes a comprehensive selection of universal joints for various applications. Designed to ensure reliability and performance, our universal joints are compatible with multiple machines and equipment, delivering smooth operation and reduced wear over time.
- Large Inventory for Fast Delivery: We maintain a substantial inventory of products, allowing us to provide quick and efficient delivery to meet your deadlines. Our streamlined logistics and stock management systems ensure that you receive the products you need without unnecessary delays.
- Variety of Abrasives, Tools, and Parts: In addition to shafts and joints, we supply a wide range of abrasives, tools, and components to support your agricultural and industrial operations. Our diverse selection guarantees that you have access to the parts necessary for efficient and seamless workflows.
- Customization and OEM Support: We specialize in providing highly customized solutions and OEM services tailored to your specific requirements. Whether you need unique designs, branding, or specialized manufacturing, our team works closely with you to deliver products that match your exact specifications.

