Kohler 1787412-s Piston Kit 0.25 Oversize

Product Description

The KOHLER 1787412-s is an oversize piston kit designed for engine rebuild and reconditioning work. This kit provides a 0.25 inch oversize piston intended to restore proper cylinder bore clearance in worn or re-bored engine cylinders. It is a factory-replacement component sourced directly from Kohler's parts and accessories line. Engine technicians and small-engine mechanics rely on oversize piston kits when standard-size pistons no longer provide adequate cylinder wall contact, making this part a core component in a complete engine overhaul. Proper fitment to the bore size is critical before installation.

This kit is suited for use in engine reconditioning applications where the cylinder bore has been re-bored or honed to 0.25 inch over the standard specification. It falls within Kohler's lawn and garden engine parts line, making it applicable to power equipment engines that accept this specific oversize piston. Technicians performing top-end or full engine rebuilds on compatible Kohler engines will find this kit appropriate for restoring compression and engine performance to within factory tolerances.

Key Features

• 0.25 inch oversize piston for use in re-bored or honed cylinder applications
• OEM Kohler replacement part for accurate fit and dimensional consistency
• Designed for engine reconditioning and overhaul work
• Part of Kohler's lawn and garden engine parts and accessories line

Compatibility

Designed as an OEM-style oversize piston kit replacement for compatible Kohler lawn and garden engines requiring a 0.25 inch overbore specification.

Installation Notes

Installation should be performed by a qualified small-engine mechanic or engine rebuilding technician. The cylinder bore must be measured and confirmed at the correct 0.25 inch oversize diameter before installing this piston. Disconnect all power sources and ensure the engine is fully drained of fuel and oil prior to disassembly. Follow Kohler engine service manual procedures for ring gap, piston orientation, and torque sequences during reassembly.

Technical Specifications

• Oversize: 0.25 inches
• Part Type: Piston Kit

Standard Information

• Brand: KOHLER
• Manufacturer Part Number: 1787412-s