Piston Pin Retainer PARSUN F4-04020006

Compatible Engines

The piston pin retainer is a critical structural component designed to secure the wrist pin within the piston bore, preventing uncontrolled movement during engine operation. The part identified by catalog number F4-04020006 from the reputable manufacturer PARSUN is engineered to withstand high mechanical loads and extreme temperatures found in the combustion chamber. Due to the nature of the aftermarket parts industry, where a single OE number may correspond to various mounting variants, precise compatibility verification is essential. We do not provide a specific list of engine models to avoid selection errors. We recommend checking if part number F4-04020006 matches the original equipment (OE) part number in your owner's manual, or contact our customer service team to verify fitment based on your drive unit's serial number.

Installation and Operation

• Original PARSUN Quality – guarantees dimensional and material compliance with factory requirements.
• Failure Prevention – prevents the pin from sliding out, protecting the piston and cylinder walls from damage.
• Easy Replacement – a simple component to install, ideal for regular service maintenance.
• Precise Fit – minimal clearance ensures quiet operation and piston stability.

During replacement, we recommend inspecting the condition of the entire piston assembly. Even a new retaining ring will not perform its role if the pin or piston bore are worn. Regular inspection of these components extends the lifespan of your outboard motor.