Description
Overview:
The Piston - Robin Part - RB234 23401 03 is a replacement engine piston for small petrol engines commonly found in construction and garden machinery. Made from durable cast aluminium alloy, it is designed to withstand high temperatures and repeated cycles while keeping weight low for efficient engine response. The piston converts combustion pressure into mechanical motion and works with the connecting rod via a gudgeon pin, helping to maintain compression, power, and smooth running. Suitable for equipment such as plate compactors, generators, water pumps, lawn mowers, tillers, and similar machines, it supports reliable starts and consistent performance. Use it as part of scheduled maintenance or to restore lost power and efficiency when the original piston is worn or damaged.
Key Features:
- Robust cast aluminium alloy construction for strength-to-weight efficiency and heat resistance
- Precision-machined dimensions for an accurate fit and dependable compression
- Smooth skirt finish to support proper lubrication and reduced friction
- Stable performance under continuous use in dusty and high-vibration environments
- Compatible with typical small-engine service tools for straightforward fitting
- Helps restore power output, fuel efficiency, and easy starting when replacing worn parts
- Corrosion-resistant materials to support long service life
- Suitable for both professional and domestic machinery maintenance schedules
- OEM-equivalent fitment characteristics to minimise setup and running-in time
- Supports clean combustion and reduced blow-by when used with serviceable rings and cylinder
Typical Applications:
Used in small Robin/Subaru-style petrol engines powering site equipment and garden tools. Common on plate compactors, generators, water pumps, cement mixers, pressure washers, lawn mowers, scarifiers, rotavators, and tillers. Ideal when rebuilding engines after scoring, poor compression, excessive oil consumption, or overheating, and as a preventative replacement during full top-end services.
Also known as:
Engine piston, cylinder piston, piston component, piston assembly (less rings), small petrol engine piston, Robin/Subaru replacement piston, internal combustion piston, top-end piston, compressor piston for small engines, piston for compactors/generators/pumps.
Product Specifications
| L&S Part No. | RB234 23401 03 |
|---|---|
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Robin |
| Key Features | - Cast aluminium alloy for strength and heat resistance - Precision-machined for accurate fit and compression - Compatible with small petrol engines in construction and garden machinery - Supports reliable starts and consistent performance - OEM-equivalent fitment for minimal setup time |

