Hardened Pto Adaptor, 1-3/8" 21-Spl X 2"

Hardened Pto Adaptor, 1-3/8" 21-Spl X 2"

The Hardened PTO Adapter, 1-3/8″ 21-Spline × 2″ Round Bore is a heavy-duty round bore PTO adapter designed to adapt a 2″ round shaft to a male 1-3/8″ 21-spline PTO connection. Built for high-load driveline use, it features a keyway with set screws for secure shaft retention and is rated up to 90 HP for dependable performance in demanding PTO applications.

Country of Origin: Varies by production batch

Key Features / Specifications

• Product Type: Round bore PTO adapter
• Spline Size: 1-3/8″ – 21 spline
• Inner Diameter (Round Bore): 2″
• Overall Length: 6-5/8″
• Construction: Hardened
• Function: Adapts round shaft to male PTO spline
• Retention: Keyway with set screws
• Power Rating (as stated): 90 HP

Ideal For

• Converting a 2″ round shaft to a 1-3/8″ 21-spline PTO connection
• PTO-driven equipment requiring a keyed, set-screw secured round bore adapter
• High-load applications needing a hardened adapter and a 90 HP rating
• Farm and equipment repairs where matching shaft-to-PTO spline fit is critical