Series 4 PTO Shaft 43-61 Inch – 1-3/8 6-Spline to Round End
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Finish mowers requiring a Series 4 driveline with matching ends
- Rotary cutters / brush hogs requiring the same length and torque class
- Tillers and spreaders with a round implement shaft and matching power demand
- 540-RPM tractor-and-implement combinations within the shaft rating
Product Overview
A bent driveline, frozen telescoping tubes, or a new implement with no shaft can stop field work immediately. This guarded T4 shaft covers a long working range for finish mowers, rotary cutters, and other equipment whose torque, ends, and collapsed length match.
PTO fitment is measured with the tractor and implement connected. A shaft that is too long can bottom out and damage the tractor; one that is too short can separate. Confirm series, yokes, horsepower, speed, and overlap.
This is an aftermarket replacement part and is not manufactured or supplied by the original equipment brand.
Key Features & Performance
- Series 4 telescoping PTO driveline
- 43 to 61-inch listed length range
- 1-3/8-inch six-spline tractor yoke
- Round implement-end connection
Common Uses
- Replacing a bent or seized PTO shaft
- Connecting a newly purchased implement
- Replacing a driveline with damaged guards or universal joints
- Matching a long tractor-to-implement distance
Technical Specifications
- Product Type: Telescoping PTO drive shaft
- Series: T4 / Series 4
- Length Range: 43 to 61 inches as listed
- Tractor End: 1-3/8 inch, 6 spline
- Implement End: Round
Installation & Fitment
- Measure collapsed and operating length on the connected equipment
- Confirm adequate telescoping overlap and bottom-out clearance
- Match PTO speed and implement power requirement
- Install and restrain all safety guards
- Grease fittings and check yoke locks before operation
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Model names alone may not guarantee fitment. Compare the original component, reference number, connector or mounting design, dimensions, and any serial-number or production-date break before purchase.
Frequently Asked Questions
Q: Does the shaft have six splines on both ends? A: The title identifies a six-spline tractor end and a round implement end; compare the product photos before ordering.
Q: Can I cut it shorter? A: Only using the driveline maker’s procedure while preserving tube and guard overlap.
Q: Will it fit any brush hog? A: No. Ends, length, series, speed, and torque rating must all match.
Part Summary
keywords: Series 4 PTO shaft, 43 61 inch tractor driveline, 1-3/8 six spline PTO, round end mower shaft, brush hog drive shaft replacement, T4 finish mower PTO
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.