Continental Contitech 20043120 Timing Belt 390L 104 Teeth

Product Description

The CONTINENTAL CONTITECH 20043120 is an L-series positive drive timing belt designed for precise power transmission in mechanical and industrial drive systems. Built with a nylon construction and a fiberglass cord, this belt delivers consistent tooth engagement and dimensional stability under repeated load cycles. It features a trapezoidal tooth profile with 104 teeth and a pitch length of 390.00 mm (39.0 inches internal length), placing it squarely in the 390L belt designation. Installation is typically performed by maintenance technicians and mechanical drive specialists working on equipment requiring accurate timing and synchronization.

This timing belt is suited for residential, commercial, and light industrial applications where L-series positive drive belts are specified. The 390L designation is a standardized belt size used across a wide range of drive systems including HVAC equipment, conveyor drives, and general machinery requiring synchronous belt transmission. The trapezoidal tooth form ensures positive engagement with matching L-pitch sprockets, reducing slippage and maintaining drive timing under variable load conditions.

Key Features

• L-series positive drive belt with standardized 390L belt number
• 104 trapezoidal teeth for accurate, slip-free synchronous drive engagement
• Nylon belt material for durability and resistance to wear
• Fiberglass cord construction for dimensional stability and low stretch
• 39.0 inch internal length with 390.00 mm pitch length
• Sold individually as a single-unit package

Compatibility

Designed as an OEM-style replacement for drive systems specifying an L-series positive drive timing belt with the 390L belt designation and matching trapezoidal L-pitch sprockets.

Installation Notes

Timing belt replacement should be performed by a qualified technician familiar with synchronous drive systems. Always de-energize and lock out the equipment before beginning belt removal or installation. Verify that the replacement belt pitch, tooth count, and section match the existing drive configuration before fitting. Do not force the belt over sprocket flanges, as this can damage the cord or tooth profile.