Piston Rings - Briggs & Stratton 391780

This high-quality replacement piston ring set (SKU: B1SB1466) is designed for Briggs & Stratton engines, offering a precise fit and reliable compression. With a cylinder diameter of 3.4375 inches, these rings are compatible with OEM numbers 391780, 394665, 394959, and 499996, making them a durable choice for restoring engine performance in lawnmowers and outdoor power equipment.

• Precision-engineered for a tight seal and optimal compression in Briggs & Stratton engines.
• Durable construction ensures long-lasting performance in demanding outdoor conditions.
• Easy to install as a direct replacement for worn or damaged piston rings.

• Briggs & Stratton single-cylinder engines with 3.4375” bore (e.g., 8-16 HP models).
• Compatible with many Briggs & Stratton lawnmower engines from the 1980s-2000s.
• Replacement for OEM part numbers 391780, 394665, 394959, and 499996.

Engine Piston Rings – Essential for restoring compression and power in small engines, these rings are a cost-effective repair solution for Briggs & Stratton equipment.