198522 - Miller 198522 Fuel Cap for Honda GX Engines (Ref 17620-ZH7-023)

Reliable Fuel Cap Replacement for Industrial Engines

The Miller 198522 Fuel Cap is a critical replacement component designed to maintain the integrity and safety of your industrial equipment's fuel system. Specifically sourced to replace the Honda reference part number 17620-ZH7-023, this cap is engineered for compatibility with the widely used Honda GX series engines. These engines are the workhorses of the industrial world, powering everything from generators and pressure washers to the heavy-duty welding machines found in your fleet. A compromised fuel cap can lead to fuel contamination, dangerous leaks, or engine stalling due to improper venting, making this simple replacement a vital part of your maintenance routine.

Constructed typically from durable chrome-plated steel, this fuel cap is built to withstand the rigors of construction sites and workshops. Unlike cheaper plastic alternatives that may crack under UV exposure or impact, the metal construction ensures longevity and resistance to deformation. The cap features a knurled edge or easy-grip design, allowing operators to remove and tighten it securely even when wearing heavy work gloves. Inside, a high-quality rubber gasket provides a tight seal against the fuel tank neck, preventing fuel slosh during transport and keeping moisture and debris out of your fuel supply.

Proper venting is essential for any gravity-fed or fuel-pump-driven engine. The Miller 198522 cap includes an integrated vent that allows air to enter the tank as fuel is consumed. This prevents a vacuum from forming inside the tank, which can starve the carburetor of fuel and cause the engine to sputter or die unexpectedly—a scenario that causes unnecessary downtime on the job. Whether you are servicing a fleet of rental equipment or maintaining your own shop tools, ensuring your Honda GX engines have a functional, sealing fuel cap is a small investment that protects the engine's longevity.

Key Compatibility

This cap is designed to fit a broad range of Honda commercial engines, including:

• Honda GX120
• Honda GX160
• Honda GX200
• Honda GX240
• Honda GX270
• Honda GX340
• Honda GX390

By choosing the correct specification part, you ensure that the thread pitch and locking mechanism match your tank perfectly, avoiding the frustration of generic caps that never quite seal correctly.