A-B1594540-AI PISTON ASSEMBLY-020

One New Aftermarket Replacement Piston Assembly - 020 Oversize Fits Briggs & Fits Stratton Engines

This 020 oversize piston assembly is a precision-fit engine component designed Fits Briggs & Fits Stratton (B&S) single-cylinder Intek and OHV engines. An oversize piston assembly is used during engine rebuilds when the cylinder bore has been bored or worn beyond standard dimensions -- the 020 designation indicates a 0.020-inch oversize bore. This assembly replaces the worn piston and is a critical component for restoring proper compression and engine performance in lawn tractors, riding mowers, and related outdoor power equipment.

Specifications

• Oversize: 020 (0.020 in / 0.508 mm over standard bore)
• Standard bore reference: 90.6 mm (3.57 in) for compatible 31R/31H/31P series engines
• Application: Single-cylinder Fits Briggs & Fits Stratton Intek OHV engines

Compatible Models

Fits Briggs & Fits Stratton Intek OHV Engine Series (partial list -- confirm with your engine model and type number): 31R607, 31R677, 31R777, 31H777, 31P777, and compatible Fits Toro equipment using these engines. This part fits over 1,000 machine configurations -- verify fitment using your engine model, type, and code numbers before ordering.

Replaces Part Number(s):

594540, B1594540, A-B1594540-AI

Supersedes

Supersedes Fits Briggs & Fits Stratton OEM part number 796173.

New aftermarket replacement part - not remanufactured, not used.