Autoparts Contactor Solenoid Replacement 48V 400A for Heavy Duty Golf Carts (MZJ-400A)

Upgrade Your 48V Golf Cart Power

The Autoparts Contactor Solenoid Replacement is engineered for heavy duty golf carts running on 48V systems. Designed to align with the MZJ-400A 400A specification, this solenoid offers robust actuation with a compact footprint, delivering a crisp engagement that supports smooth transitions from idle to acceleration in daily golf cart use.

In practical terms, this replacement is built to handle demanding electrical behavior. The unit supports an inrush current up to 800A and a continuous load around 600A, making it suitable for carts that experience frequent start/stop cycles or high-demand operation on busy courses and maintenance routes. With a mechanical life rated near 300,000 cycles, it’s positioned as a durable option for long-term service in converting or upgrading older systems.

Key specs at a glance

• Voltage: 48V
• Current rating: 400A (continuous)
• Inrush current: up to 800A
• Continuous load: up to 600A
• Mechanical life: ~300,000 cycles
• Replacement for Part Number: MZJ-400A, 400A48V

What’s included and fitment

Package includes: 1 x Contactor Solenoid. This replacement is intended for Heavy Duty Golf Cart 48V MZJ-400A 400A systems. Please check the model before purchase and compare the screw hole position to ensure proper fit.

Installation and compatibility notes

Professional installation is highly recommended to ensure correct fit and wiring integrity. This solenoid is designed to integrate with standard 48V control architectures and mounting patterns, offering a convenient upgrade path for compatible carts.

Why choose Autoparts for this replacement

Designed to mirror essential electrical characteristics, this solenoid replacement aims to preserve original performance and reliability. While results can vary by application, users may experience consistent switching and reliable engagement when installed in compatible 48V golf carts.