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Upgraded PTO Extender Adapter For Tractor 1 3/8 6 Spline Female Male 1 3/8

Upgraded PTO Extender Adapter For Tractor 1 3/8 6 Spline Female Male 1 3/8

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$87.99
Sale price  $87.99 Regular price 

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This PTO Extender Adapter is a durable tractor driveline extension with 1-3/8 inch 6-spline female and male ends, rated for up to 70HP applications.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.

Randy W. — Verified customer

Product Overview

This PTO extender adapter spaces the tractor power take-off shaft rearward to clear implement hitches, guards, or front-mounted attachments. Built for 1-3/8 inch 6-spline connections, the PTO extender adapter transmits power from the tractor to PTO-driven implements without altering shaft engagement. Operators using compact and utility tractors rely on this PTO extender adapter to maintain safe driveline clearance during demanding fieldwork.

Key Features & Performance

  • 1-3/8 inch 6-spline female input and male output ends
  • Rated for tractors and implements up to 70 horsepower
  • Heavy-duty steel construction withstands high torque and continuous use
  • Extends PTO shaft length to prevent coupling interference
  • Sherardized or corrosion-resistant finish for long outdoor service life
  • Maintains standard 540 RPM PTO speed without modification

Fitment & Compatibility

  • Fits tractors and implements with 1-3/8 inch 6-spline PTO shafts
  • Compatible with most Category 1 and Category 2 PTO drivelines up to 70HP
  • Works with brush mowers, rotary cutters, tillers, post hole diggers, and other PTO-driven attachments

Common Uses

  • Extending the tractor PTO stub to clear mounted implement frames or quick hitches
  • Preventing U-joint binding on short drivelines with front-end attachments
  • Adding clearance for safety shields and guards on modern implements
  • Adapting standard PTO shafts when implement connection points are recessed

Technical Specifications

  • Spline Size: 1-3/8 inch, 6 spline
  • Ends: 1-3/8" 6-spline female x 1-3/8" 6-spline male
  • Maximum HP Rating: 70HP

Frequently Asked Questions

Q: Will this extender work with a 1-3/8 inch 6-spline PTO shaft? A: Yes, both ends are 1-3/8 inch 6-spline, designed to connect standard 540 RPM PTO shafts.

Q: What is the maximum tractor horsepower this adapter can handle? A: It is rated for up to 70HP, making it suitable for compact and mid-sized tractors used with mowers and tillers.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.

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