The Starter Solenoid for Honda GX390 & GX340 engines is a premium-quality replacement part engineered for reliable and consistent electric start performance. Designed to meet or exceed OEM standards, this solenoid delivers the dependable connection your starter motor needs for smooth engine ignition every time.

Built with high-temperature resistant materials and durable copper terminals, this solenoid provides excellent conductivity, long life, and resistance to corrosion — even in demanding outdoor or commercial environments. It’s an ideal replacement for pressure washers, generators, lawn equipment, and other power machinery using Honda GX390 or GX340 engines.

Features & Specifications:

• Part Type: Starter Solenoid

• Compatible Engines: Honda GX340, GX390, and clones

• Replaces OEM Part Numbers: 31204-ZA0-003, 31204-ZA0-013, and equivalents

• Voltage: 12V DC

• Construction: Heavy-duty plastic housing with copper terminals

• Performance:

  • Ensures consistent electrical contact for fast starts

  • Resistant to vibration, moisture, and corrosion

  • Maintains reliability under continuous use

• Applications:

  • Pressure washers

  • Generators

  • Compactors

  • Power trowels

  • Lawn and garden equipment

Benefits:

• Direct OEM-style fit — plug-and-play installation

• Restores proper starter function

• Reduces wear on starter motors and electrical systems

• Perfect for both residential and commercial engines