Hardened Pto to Shaft Coupler, 1-3/8" 21-Spl X 1-3/4" Keyed bore

Hardened Pto to Shaft Coupler, 1-3/8" 21-Spl X 1-3/4" Keyed bore

The 1132800H-21 Hardened PTO-to-Shaft Coupler (1-3/8″ 21-Spline x 1-3/4″ Keyed Bore) is a heavy-duty driveline coupler designed to connect a 1-3/8″ 21-spline PTO output to a 1-3/4″ keyed shaft. Built from hardened material for durability in high-torque applications, it’s a practical solution for adapting PTO-driven equipment to larger keyed-shaft components while maintaining a secure mechanical connection.

Country of Origin: Varies by production batch

Key Features / Specifications

• Part Number: 1132800H-21
• Product Type: PTO-to-shaft coupler / adapter
• PTO Side: 1-3/8″, 21-spline
• Output Bore: 1-3/4″ keyed bore
• Construction: Hardened for improved wear resistance and durability
• Function: Adapts PTO spline output to a keyed shaft connection for driveline/power transmission use

Ideal For

• Adapting a 1-3/8″ 21-spline PTO to a 1-3/4″ keyed shaft
• PTO-driven implements and driveline setups needing a size/connection conversion
• High-torque farm and equipment applications where a hardened coupler is preferred
• Maintenance and repair situations requiring a direct replacement coupler/adaptor