Jason Industrial MXV4-390 Kevlar V-belt 0.5x39 in

Product Description

The JASON INDUSTRIAL MXV4-390 is a Kevlar-reinforced V-belt designed for demanding power transmission applications in farm, lawn, and garden equipment. Measuring 0.5 inches wide with a 39-inch outside circumference, this belt delivers high tensile strength and heat resistance where standard rubber belts fall short. The Kevlar cord construction resists stretching and cracking under heavy cyclical loads, making it a reliable choice for mower decks, tillers, and similar outdoor power equipment. Technicians and equipment service pros install this belt as a direct replacement when restoring drive train performance.

This belt is sized for use in farm, lawn, and garden equipment that requires a 4L or MXV cross-section V-belt. It fits drive systems where a 0.5-inch top width and approximately 39-inch length are specified. It is well suited for residential and light commercial outdoor power equipment, including walk-behind and riding mowers, garden tractors, and rotary tillers. Always verify the belt cross-section and length against equipment manufacturer specifications before installation.

Key Features

• Kevlar cord construction provides high tensile strength and reduced stretch compared to standard rubber belts
• 0.5-inch top width and 39-inch length for precise fitment in 4L/MXV-profile drive systems
• Heat and flex resistant for high-cycle outdoor power equipment applications
• Sold individually (unit of measure: EA)

Compatibility

Designed as an OEM-style replacement V-belt for farm, lawn, and garden equipment requiring a 4L or MXV cross-section belt with a 0.5-inch width and 39-inch length. Verify equipment manufacturer specifications for cross-section profile and length before installation.

Installation Notes

V-belt replacement is typically performed by equipment technicians or qualified service personnel. Disengage all power take-offs and disconnect the spark plug or power source before removing the old belt. Inspect pulleys and sheaves for wear or misalignment prior to installing the new belt, as damaged pulleys accelerate belt wear. Do not force the belt over pulley flanges using sharp tools, as this can damage the Kevlar cord structure.

Technical Specifications

• Belt Width: 0.5 inches
• Belt Length: 39 inches
• Belt Profile: MXV4 (4L/MXV cross-section)
• Cord Material: Kevlar
• Application: Farm, Lawn, and Garden Equipment
• Weight: 13 pounds
• Unit of Measure: EA
• Package Quantity: 25

Standard Information

• Brand: JASON INDUSTRIAL
• Manufacturer Part Number: MXV4-390