Battery Main Switch for Volvo Trucks & Renault | OE 21243844

Product Description: Heavy-Duty Battery Main Switch (Disconnect)

Ensure complete electrical safety and reliable power management for your fleet with our high-durability Battery Main Switch. Designed specifically for Volvo and Renault heavy-duty commercial vehicles, this disconnect switch allows for the secure isolation of the vehicle’s electrical system during maintenance or prolonged periods of inactivity, preventing battery drain and mitigating short-circuit risks.

Engineered to meet or exceed OEM specifications, this switch is built to survive the demanding environments of the trucking and transport industry. It features a robust, weather-resistant housing designed to resist vibration, moisture, and extreme temperature fluctuations common in chassis-mounted electronics. As a direct-fit replacement, it provides the reliability needed to keep your vehicles operational and safe.

Key Features

• Positive Isolation: Provides a reliable physical disconnect for the main battery circuit, essential for vehicle storage and electrical repairs.

• Ruggedized Construction: Industrial-grade, sealed design prevents corrosion and electrical arcing, ensuring longevity in harsh road conditions.

• OEM-Matched Compatibility: Precisely engineered to match the electrical load requirements and mounting configurations of Volvo and Renault chassis.

• Fleet Safety Compliance: An essential component for maintaining safety protocols and protecting sensitive vehicle electronic control units (ECUs).

Compatibility & Applications

This battery main switch is engineered for a wide range of Volvo and Renault commercial platforms:

OE Reference Cross-Reference

Use this switch as a direct, high-quality replacement for the following original equipment (OE) reference numbers:

• Volvo: 20514309, 21199003, 21243844

• Renault: 74 21 199 003