Continental Contitech 20042057 V-belt Section B 42 Inch B39

Product Description

The CONTINENTAL CONTITECH 20042057 is a Section B classical V-belt designed for power transmission in HVAC, industrial fan drive, and general mechanical drive applications. Built with Wingprene rubber-impregnated fabric construction, this belt delivers reliable torque transfer and resistance to heat, oil, and environmental exposure. It carries a 42-inch outside length (40.80-inch internal length) and is manufactured to the B39 belt standard. At 0.4 pounds, it is a direct single-belt replacement suited for service technicians and maintenance professionals working on belt-driven equipment.

This belt is used in residential and light commercial HVAC systems, exhaust fan assemblies, blower drives, refrigeration condensing unit fans, and general industrial drive applications where a Section B classical V-belt is specified. The HY-T Matchmaker designation indicates it is engineered for compatibility with standard and deep-groove Section B sheaves, making it a common service replacement across a wide range of belt-driven equipment. Technicians working on air handlers, rooftop units, and condenser fan drives will recognize the B39 designation as a standard stock item.

Key Features

• Wingprene rubber-impregnated fabric construction resists heat, oil, and ozone exposure
• Section B profile fits standard B-groove sheaves and pulleys
• 42-inch outside length, 40.80-inch internal length to B39 specification
• HY-T Matchmaker style engineered for use in matched sets or as a single replacement
• Rated for operating temperatures from -40 degrees F to 284 degrees F (140 degrees C maximum)
• Lightweight at 0.4 pounds for easy single-tech handling during service calls

Compatibility

Designed as an OEM-style replacement for equipment requiring a Section B, B39 classical V-belt with a 42-inch outside length and standard B-section sheave groove profile.

Installation Notes

Belt replacement should be performed by a qualified HVAC technician or mechanical maintenance professional. Always de-energize and lock out the equipment at the disconnect before removing belt guards or handling drive components. Never pry a V-belt over a sheave flange — loosen the motor mounting to relieve tension before removal and installation. After seating the new belt, adjust drive tension according to the equipment manufacturer's specification and confirm belt tracking before restoring power.