The Piston Assembly (STD) for Briggs & Stratton 10–12 HP engines is a precision-engineered OEM-quality replacement part designed to restore compression, reduce oil consumption, and improve overall performance. Built to factory specifications, this standard-size piston assembly provides a perfect fit and long-lasting durability, making it ideal for rebuilds, repairs, and preventative maintenance.

Specifications & Details:

• Application: Briggs & Stratton small engines

• Horsepower Range: 10–12 HP

• Part Type: Standard size piston assembly (STD)

• OEM-quality replacement component

• Restores engine compression and efficiency

• Reduces blow-by and oil consumption

• Precision fit to Briggs & Stratton factory specifications

• Durable construction for extended service life

• Includes piston only (rings, wrist pin & keepers sold separately unless noted)

Replaces

• BRIGGS & STRATTON: 391285, 393271, 394661, 394955, 498584, 499282, 499284, 499956