Briggs & Stratton 595790 – Piston Assembly

The Briggs & Stratton 595790 Piston Assembly is a genuine OEM replacement component designed for select 49-series V-Twin engines. Manufactured to precise Briggs & Stratton engineering tolerances, this standard-size piston restores correct compression, smooth operation, and long-term reliability — essential for maintaining performance in ride-on mowers, zero-turns, and commercial outdoor power equipment.

• Part No.: 595790

• Type: Piston Assembly

• Size: Standard (STD)

• Includes:

  • Piston

  • Wrist pin / Gudgeon pin

  • Circlips

  • Piston rings

• Application: Crankshaft Group / Cylinder Group (varies by engine model)

• Brand: Briggs & Stratton (OEM)

Fits the Following Briggs & Stratton Engine Series

• 499777 Series

• 49C877 Series

• 49E777 Series

• 49E877 Series

• 49J677 Series

• 49R977 Series

• 49S777 Series

• 49S877 Series

• 49T777 Series

• 49T877 Series

• 49V677 Series

• 49X977 Series