Description
Overview:
The Large End Bearing - Robin Part - RB243 22802 03 is a precision internal engine component used in small petrol engines commonly found in construction and garden machinery. Made from bearing-grade hardened steel with finely finished running surfaces, it supports the crankpin at the big end of the connecting rod, keeping friction low and oil film stable under load. Replacing a worn big-end bearing helps restore correct oil clearance, reduces knock, and protects the crankshaft from scoring. It is suitable for equipment such as generators, pumps, compactors, tillers, and mowers that use Robin/Subaru small engines, where this specification is called up. Designed as a direct replacement to the original part number RB243 22802 03, it helps maintain smooth, reliable operation and extends engine life when installed and lubricated according to the manufacturer's service guidance.
Key Features:
- Precision-engineered big-end bearing to OEM specification RB243 22802 03 for correct fit where specified
- Hardened bearing steel construction for high durability and wear resistance
- Smooth, low-friction running surfaces to support stable oil film and reduce heat build-up
- Helps restore correct clearances, minimising vibration and engine knock
- Consistent dimensions for reliable alignment with the connecting rod and crankpin
- Suitable for high load cycles typical of site and garden machinery engines
- Corrosion-resistant finish to protect during storage and service intervals
- Drop-in replacement design for straightforward fitting with standard workshop tools
- Supports reliable cold starts and sustained running at working revs
- Ideal for routine overhauls and preventative maintenance to extend engine service life
Typical Applications:
Used in Robin/Subaru small petrol engines fitted to generators, water pumps, plate compactors, trench rammers, concrete tools, chippers, tillers, lawn mowers, and similar equipment. Replace during an engine rebuild when oil pressure is low, the big end shows play, or bearings exhibit scoring. Suitable for workshop repairs and on-site maintenance to keep equipment running efficiently and reduce downtime.
Also known as:
Big-end bearing, connecting rod bearing, con-rod big end shell, crankpin bearing, rod journal bearing, engine big-end insert. Commonly referred to as a Robin or Subaru small engine big-end bearing in service manuals and parts lists.
Product Specifications
| L&S Part No. | RB243 22802 03 |
|---|---|
| Unit of Sale | 1 |
| Fits Brands | Robin |
| Key Features | - OEM specification RB243 22802 03 for precise fit - Hardened bearing steel for durability - Low-friction surfaces support stable oil film - Direct replacement for easy fitting - Suitable for Robin/Subaru small petrol engines |
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