Piston Assembly - Briggs & Stratton 391288 - .020" Oversize

This high-quality piston assembly (SKU B1SB8826) is a direct replacement for the OEM Briggs & Stratton 391288, engineered to .020" oversize for precision engine rebuilding. Designed for small engines in lawn mowers, generators, and pressure washers, it delivers reliable compression and long-lasting durability. The assembly includes the piston, rings, and wrist pin for a complete drop-in fit, making it an excellent choice for professional or DIY repairs.

• OEM-equivalent replacement with .020" oversize bore for worn cylinder restoration.
• Includes piston, rings, and wrist pin for a complete, hassle-free installation.
• Durable cast-iron ring set ensures consistent compression and reduced oil consumption.

• Briggs & Stratton single-cylinder engines (e.g., 8–16 HP models)
• Lawn mowers and ride-on mowers
• Pressure washers and generators

Small Engine Parts - Piston Assemblies