Description
Overview:
This 0.50 oversize piston is a genuine OEM replacement for the Robin/Subaru EY08 small petrol engine. Machined from durable aluminium alloy for reliable heat transfer and strength, it restores correct piston-to-bore clearance and compression after a +0.50 mm rebore. The piston is designed to match the EY08's original geometry and ring groove layout for dependable sealing and smooth operation. It is well suited to construction and garden machinery powered by the EY08, such as compactors, generators, pumps, and tillers. Supplied to OEM specification under part number 230-23403-03, it helps maintain starting, power output, fuel efficiency, and low oil consumption. A precise fit reduces installation time and helps minimise downtime, making it a practical choice for workshops, hire fleets, and DIY users maintaining Robin/Subaru EY08 engines.
Key Features:
- Genuine OEM specification for Robin/Subaru EY08
- 0.50 oversize (+0.50 mm) to suit re-bored cylinders
- Aluminium alloy construction for strength and heat dissipation
- Accurate machining for proper ring seating and compression
- Smooth-running performance with reduced blow-by and oil usage
- Consistent fitment to speed up installation and reduce downtime
- Compatible with typical EY08-powered construction and garden equipment
- OEM reference 230-23403-03 for easy identification
Typical Applications:
Used in EY08 engines fitted to light construction and landscaping equipment, including plate compactors, small generators, water pumps, and rotary tillers. Ideal for engine rebuilds following cylinder reboring to +0.50 mm, or when restoring lost compression, power, and starting performance in hard-worked machines on site or in the garden.
Also known as:
0.50 oversize piston, +0.50 mm piston for EY08, Subaru Robin EY08 piston, EY-series piston, replacement piston for EY08 engine, engine rebuild piston for EY08.
Fits Models:
EY08
Alternate Part Numbers:
RB2302340303, 230-23403-03, 2302340303
Product Specifications
| L&S Part No. | RB230 23403 03 |
|---|---|
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Robin |
| Key Features | - Genuine OEM specification for Robin/Subaru EY08 - 0.50 oversize (+0.50 mm) for re-bored cylinders - Aluminium alloy for strength and heat dissipation - Accurate machining ensures proper ring seating - Compatible with EY08-powered construction and garden equipment |
| Fits Models | EY08 |
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