Description
Overview:
The Piston with Ring Set for Kohler K91 engines is a Genuine Kohler part designed to restore and maintain correct compression and smooth running. Supplied as a matched piston and ring pack, it is built to Kohler specifications for a precise fit in the K91 cylinder. The piston is a durable aluminium alloy for strength with low mass, while the rings are hardened steel/cast iron to seal the combustion chamber, control oil, and minimise blow‐by. This set is a direct replacement for OEM No. 46 874 01-S and is suitable for routine maintenance or a top-end refresh on machinery powered by Kohler K91 single-cylinder engines. It supports reliable performance in garden and light construction equipment used by trades, businesses, and DIY users.
Key Features:
- Genuine Kohler part for assured compatibility and reliability with K91 engines (OEM 46 874 01-S)
- Matched piston and ring set to help restore compression and starting performance
- Aluminium alloy piston for strength, heat transfer, and reduced reciprocating mass
- Hardened steel/cast iron rings for long service life and stable sealing
- Helps reduce oil consumption and exhaust smoke by improving ring control
- Direct-fit replacement to Kohler factory dimensions for straightforward installation
- Suitable for scheduled maintenance or repair after wear, scuffing, or loss of power
- Supports efficient running, fuel economy, and engine longevity under regular use
Typical Applications:
Used when overhauling the top end of Kohler K91-powered equipment such as walk-behind mowers, small garden tractors, rotavators, generators, pumps, and light construction tools. Ideal where engines show low compression, hard starting, increased oil use, or reduced power. Suitable for professional service work and home workshop repairs to keep machinery dependable and compliant with routine maintenance schedules.
Also known as:
Piston kit for Kohler K91, piston and ring kit, piston assembly, piston and rings set, engine piston set, top-end piston set, ring and piston pack, replacement piston for K91, engine rebuild piston kit.
Fits Models:
K91
Alternate Part Numbers:
46 874 01S, 4687401-S, 4687401S
Product Specifications
| L&S Part No. | 46 874 01-S |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
| Applications | K91 |
| Machine Type | Engines |
| Fits Brands | Kohler |
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