Series 4 Round Bore Shear Bolt PTO Driveline — 60", 1-1/4" Bore, 35 HP

The Braber 69.777.053 is a Series 4 shear bolt PTO driveline that transfers tractor power to an implement while protecting the driveline from overload through a sacrificial shear bolt. Built on the BY-PY #4 Series, it pairs a 6-spline 1-3/8" quick-disconnect tractor connection with a 1-1/4" round bore shear bolt implement connection — sized specifically for post hole augers with a 1-1/4" input shaft. Rated for 35 HP at 540 RPM with a 60" collapsed length, it's a direct replacement for part 69.000.053.

Power Transfer With Shear Bolt Protection

A PTO driveline is the telescoping, universal-jointed shaft that carries power from the tractor's PTO to the implement's gearbox. This one protects what's behind it with a shear bolt: when the implement overloads or the auger binds on a rock or root, the sacrificial bolt is engineered to break, disconnecting the drive before the shock can damage the driveline, gearbox, or tractor PTO. That's especially valuable on a post hole auger, where sudden stops are part of the job. Replacing a broken shear bolt is a quick, inexpensive job — so it pays to keep spares on hand.

Features

BY-PY #4 Series Driveline

A BY-PY #4 Series driveline delivers reliable power transfer sized for lighter-duty 540 RPM applications.

1-1/4" Round Bore Shear Bolt Connection

A 1-1/4" round bore shear bolt implement connection fits a smooth 1-1/4" round input shaft, with the shear bolt passing through to drive the load and provide overload protection — matched to common post hole auger inputs.

Quick-Disconnect Tractor Connection

A 6-spline 1-3/8" quick-disconnect tractor connection makes hookup fast and tool-free.

Triangular-Profile Shafting

Triangular-profile shafting — a 36 mm inner tube (4.5 mm wall) and 43.5 mm outer tube (3.4 mm wall) — telescopes smoothly through the implement's travel while transmitting torque securely.

35 HP Rating

Rated for 35 HP at 540 RPM, the driveline suits lighter-duty implements.

60" Collapsed Length

A 60" collapsed length suits wider tractor-to-implement spacing, extending and retracting through operation.

Built for Post Hole Augers

With its shear-bolt protection and 1-1/4" round bore, the 69.777.053 is suited for:

• Post hole augers with a 1-1/4" input shaft
• 540 RPM applications where sudden binding and overloads are a risk
• Lighter-duty PTO-driven work within its rating
• Replacing a worn or damaged 69.000.053 driveline

Warranty

This PTO driveline is backed by Braber Equipment's limited warranty — contact your dealer for current warranty terms and coverage details.

Product Specifications

• Type: Series 4 Round Bore Shear Bolt PTO Driveline
• Driveline Series: BY-PY #4 Series
• Tractor Connection: 6-Spline 1-3/8" Quick-Disconnect
• Implement Connection: 1-1/4" Round Bore Shear Bolt
• Shafting: Triangular Profile — 36 mm Inner (4.5 mm Wall) / 43.5 mm Outer (3.4 mm Wall)
• Power Rating: 35 HP at 540 RPM
• Collapsed Length: 60"
• Replaces: Part 69.000.053
• SKU: 69.777.053
• Brand: Braber Equipment

Note: Always replace with the correct shear bolt specified for the driveline — substituting a standard or higher-grade bolt defeats the overload protection and can cause serious damage or injury. Confirm spline sizes, bore, length, and speed compatibility for your tractor and implement before use. Always operate with the driveline guard in place. Product may vary slightly from images shown. Specifications are subject to change without notice — confirm details with your dealer prior to purchase.

Reliable Power, Simple Protection — Built by Braber

The Braber 69.777.053 combines a BY-PY #4 driveline, a 1-1/4" round bore shear bolt connection, triangular-profile shafting, and quick-disconnect hookup into one 60" PTO shaft built for post hole augers. For 540 RPM auger work, the 69.777.053 keeps the power flowing and the driveline protected.

69.777.053 — Series 4 Round Bore Shear Bolt PTO Driveline, 60", 1-1/4" Bore, 35 HP.