Starter Relay Solenoid For Honda Sportrax TRX400EX 1999 2000 2001 2002 2003 2004

Starter Relay Solenoid for Honda Sportrax TRX400EX

This starter relay solenoid is an aftermarket replacement electrical component that routes battery current to the starter motor on the Honda Sportrax TRX400EX, restoring reliable push-button starting.

Overview

This starter relay solenoid for Honda Sportrax TRX400EX models replaces a worn or failed relay so the starter motor receives the current it needs to crank the engine. The starter relay solenoid is a direct-fit style unit built for riders servicing a 1999 through 2004 Sportrax TRX400EX. Install it whenever the machine clicks, cranks weakly, or refuses to turn over from a faulty relay.

Built For Performance

• Heavy-duty copper contacts for consistent current transfer during every start
• Sealed housing that resists mud, water splash, and trail dust
• Direct-fit mounting pattern matching the factory relay location
• Rated for the amperage draw of the TRX400EX electric start system
• Corrosion-resistant terminals for dependable long-term connections
• Sold as a complete solenoid unit ready for plug-in installation

Fits These Machines

• for Honda Sportrax TRX400EX 1999
• for Honda Sportrax TRX400EX 2000
• for Honda Sportrax TRX400EX 2001
• for Honda Sportrax TRX400EX 2002
• for Honda Sportrax TRX400EX 2003
• for Honda Sportrax TRX400EX 2004

On-The-Job Use

• Replacing a relay that clicks but will not crank the engine
• Routine electrical maintenance on high-hour Sportrax quads
• Trailside repairs after a sudden no-start condition
• Restoring an older TRX400EX that has sat unused

Specs At A Glance

Good To Know

Q: How do I know the relay is the problem and not the battery? A: A single loud click with no crank often points to the relay, while a weak or slow crank usually points to the battery. Test the battery first, then check for voltage at the starter terminal when the button is pressed.

Q: Is this an original Honda part? A: No, this is an aftermarket starter relay solenoid made for Honda Sportrax TRX400EX models and is not an original equipment part. Always compare the connector and mounting layout with the unit being replaced before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.