Description
Overview:
This genuine Robin/Subaru piston pin connects the piston to the connecting rod in EX17 and EX21 petrol engines, allowing the piston to pivot smoothly through each stroke. Manufactured from high-strength steel for durability and consistent performance, it is made to OEM specifications for correct fit and alignment within the small end of the con-rod and the piston bosses. Suitable for compact equipment using the EX-series engines, it helps maintain compression, reduce wear, and support reliable starting and running. Supplied as unused old stock, the pin may show light tarnishing or storage marks, but remains unused and fully serviceable. OEM reference: 277-23301-03. A straightforward like-for-like replacement for routine engine repair or rebuild work on Robin/Subaru EX17 or EX21 engines.
Key Features:
- Genuine Robin/Subaru part for assured compatibility and performance
- Steel construction for strength, wear resistance, and long service life
- Precision-made to OEM tolerances for correct fit in EX17 and EX21 engines
- Helps maintain smooth piston motion and reduces friction at the wrist pin joint
- Stable running and dependable sealing when used with serviceable piston and con-rod
- Suitable for preventative maintenance and engine overhauls
- Unused old stock; may show minor tarnish from storage but is unused and functional
- Direct replacement with no modifications required when used on the stated models
Typical Applications:
Used during piston and connecting rod service on Robin/Subaru EX17 and EX21 engines commonly found in generators, plate compactors, water pumps, pressure washers, and light construction or garden machinery. Ideal when rebuilding a worn top end, addressing piston slap, or restoring correct clearances after high hours or poor lubrication events.
Also known as:
Wrist pin, gudgeon pin, piston wrist pin, piston connector pin. Often referred to in workshop manuals as the pin linking the piston to the con-rod small end.
Fits Models:
EX17, EX21
Alternate Part Numbers:
RB277-23301-03, 277-23301-03, 277 23301 03, RB2772330103, 2772330103
Product Specifications
| L&S Part No. | RB277 23301 03 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Robin/Subaru |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Robin |
| Key Features | - Genuine Robin/Subaru part for EX17 and EX21 engines - High-strength steel for durability and wear resistance - Precision-made to OEM tolerances for correct fit - Suitable for generators, compactors, pumps, and washers - Direct replacement with no modifications required |
| Fits Models | EX21 | EX17 |
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