SCITOO Yellow 37ft-59ft PTO Shaft 1-3/8ft 6-Spline - Telescoping Drive

In this review the SCITOO Yellow 37'-59' PTO Shaft is evaluated for farmers and homeowners who need a straightforward replacement driveline for mowers, brush hogs, and rotary tillers. The bottom line: it is best for users who want a robust, telescoping replacement with a clear fit specification and good value, because the shaft combines a solid carburized universal joint and a protective tube with a wide adjustable range that fits many common implements.

Key Features

• Adjustable length: The telescoping design compresses to 37 in and extends to 59 in, allowing quick length matching between tractor and implement.
• Defined power limits: Rated for up to 35 Hp and 460 Nm at 540 rpm, or 55 Hp and 380 Nm at 1000 rpm, so users can match the shaft to engine and implement requirements.
• Standard spline fit: Both tractor and implement ends are 1-3/8' x 6 splines, making it a direct replacement for many common PTO connections.
• Durable construction: Solid 20CrMnTi carburized steel universal joints and a Q345 steel tube inside the shield are intended to provide lasting strength under load.
• Simple assembly: The unit is designed for straightforward installation as a direct replacement, reducing downtime when swapping shafts.
• Broad compatibility: Suited for finish mowers, brush hogs, rotary tillers and similar implements used on small tractors and garden machinery.

Who It's For

The SCITOO 37'-59' PTO shaft is aimed at owners of small tractors and implements who need a replacement driveline that covers a common length range and uses the standard 1-3/8' 6-spline connection. It is a practical choice for landscapers, hobby farmers, and contractors who want predictable physical specs and a steel construction that feels solid in the hands.

It is not aimed at high-hour commercial operations that require slip clutches or advanced overload protection built into the shaft; those users should consider shafts with integrated clutching or heavier-duty rated alternatives. Also check the spline and length requirements carefully against your equipment before purchasing.

Pros & Cons

Pros

• Build quality feels substantial thanks to carburized universal joints and a reinforced tube.
• Practical adjustable range (37 in to 59 in) covers many common implement setups.
• Standard 1-3/8' x 6 spline at both ends simplifies replacement and fitment.
• Clear power and torque ratings allow matching to tractor PTO speeds.

Cons

• Durability reports are mixed from customers, so it may not match heavy commercial duty in long-term use.
• It does not include a slip clutch, so overload protection must come from other implement components.

Specifications

Compressed length	37 in / 950 mm
Extended length	59 in / 1500 mm
Tractor end	1-3/8' x 6 splines
Implement end	1-3/8' x 6 splines
Materials	20CrMnTi carburized universal joints; Q345 steel tube
Power rating	35 Hp (540 rpm) / 55 Hp (1000 rpm)
Torque	460 Nm at 540 rpm; 380 Nm at 1000 rpm

Our Verdict

The SCITOO 37'-59' PTO shaft is a sensible, value-oriented replacement for homeowners and small-farm operators who need a reliable telescoping driveline with standard 1-3/8' 6-spline ends. It offers clear specifications, solid materials, and easy fitment, though customers seeking heavy commercial endurance or integrated overload protection should consider purpose-built clutching shafts.

Frequently Asked Questions

Will this shaft fit my mower or tiller?
It fits implements that use a 1-3/8' x 6-spline connection and require a shaft length between 37 in and 59 in when adjusted; confirm both spline and length before buying.

Does this shaft include a slip clutch?
No, this model does not include a slip clutch; overload protection must be provided by the implement or a separate clutching device.

Is the shaft heavy-duty?
Construction uses carburized 20CrMnTi joints and a Q345 steel tube for durability, but customer feedback notes mixed long-term durability, so it is best for light to medium duty use.