Carrier KR11HY229 Variable Pitch Motor Pulley 1VP56

The Carrier KR11HY229 is a genuine OEM variable pitch motor pulley designed for commercial and industrial HVAC applications. This single-groove pulley features the 1VP56 specification with a 5.35-inch outside diameter and is engineered to transfer rotational power from the motor to driven components in Carrier heating and cooling systems.

Key Features:

• Variable pitch design allows for speed adjustment and belt tension optimization
• Single groove configuration compatible with 3L, 4L, A, AX, and B series V-belts
• 5.35-inch outside diameter with adjustable pitch diameter range from 3.9 to 5.3 inches
• Cast iron construction for durability and reliable performance
• Precision-manufactured to ARPM standards for consistent quality
• Finished bore design for secure motor shaft mounting

This genuine Carrier replacement pulley ensures exact fit and proper system operation, maintaining the original equipment specifications and performance standards. Variable pitch pulleys provide the flexibility to fine-tune belt drive systems for optimal efficiency and extend belt life through proper tensioning.