Description
Overview:
The Piston O/S 0.50 for Robin RB270 engines (part reference 23403 03) is a durable aluminium alloy piston designed to restore correct clearances and compression after a cylinder has been rebored. It is intended for construction and garden machinery powered by Robin/Subaru petrol engines, such as plate compactors, generators, water pumps, and similar equipment. The +0.50 mm oversize ensures a precise fit in a properly machined bore, helping the engine seal efficiently, reduce oil consumption, and deliver reliable performance. Manufactured to tight tolerances, the piston supports consistent operation under heavy, continuous use typical of site and landscaping jobs. Suited to routine rebuilds or repairs, it helps extend engine life and keep equipment running smoothly. Compatible with the RB270 engine family.
Key Features:
- +0.50 mm oversize for accurate fit in rebored cylinders
- Engineered for Robin RB270 petrol engines for straightforward compatibility
- Aluminium alloy construction for strength, heat resistance, and good heat dissipation
- Precision-machined skirt and ring lands to support strong sealing and stable running
- Helps restore compression, power output, and fuel efficiency
- Supports reliable starting and reduced oil burning when used with the correct ring set
- Suitable for demanding site conditions in construction and landscaping machinery
- Straightforward to install by a competent technician, helping minimise downtime
Typical Applications:
Used during engine overhauls on Robin RB270-powered equipment such as plate compactors, generators, water pumps, pressure washers, and other small plant and garden machinery. Ideal where the cylinder has been rebored to accept a +0.50 mm piston, restoring proper piston-to-bore clearance and dependable performance for daily trade, hire fleet, and DIY use.
Also known as:
0.50 OS piston for Robin, RB270 0.50 oversize piston, 0.5 o/s engine piston for Robin/Subaru, RB270 rebore piston +0.50 mm, replacement piston for Robin RB270, part 23403 03 piston.
Fits Models:
RB270
Product Specifications
| L&S Part No. | RB270 23403 03 |
|---|---|
| Unit of Sale | 1 |
| Fits Brands | Robin |
| Key Features | - +0.50 mm oversize for rebored cylinders - Compatible with Robin RB270 petrol engines - Aluminium alloy for strength and heat resistance - Precision-machined for strong sealing and stability - Restores compression and fuel efficiency |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£83.17 £69.31 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£83.68 £69.73
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£83.17 £69.31 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£83.68 £69.73
