Description
Overview:
The Cooling Blower for Robin EX21 Engine (OEM No. RB278 54101 H3) is a Genuine Robin/Subaru part designed to keep EX21 petrol engines running at the correct temperature. This component is a moulded, off-white plastic impeller that drives airflow through the engine shrouds and across the cylinder fins to remove heat during operation. It maintains consistent cooling performance under continuous or stop/start use, helping to protect internal components and preserve engine efficiency. Built to the original specification for the EX21, it replaces worn or damaged blowers and restores factory airflow. Suitable for construction and garden machinery powered by the EX21, it is a direct-fit solution that supports reliable starting, stable running, and long service life in demanding environments.
Key Features:
- Genuine Part - Robin/Subaru OE quality for assured fit and function
- Matches OEM No. RB278 54101 H3 for straightforward identification
- Robust moulded plastic impeller; lightweight, corrosion-proof and impact-resistant
- Efficient vane design to move cooling air across fins and shrouds
- Helps prevent overheating, power drop and premature component wear
- Direct replacement; installs with standard hand tools using existing fixings
- Stable running at operating RPM for smooth, low-vibration performance
- Suitable for EX21 engines across a wide range of site and garden machines
- Low maintenance; clean of debris as part of routine servicing
- Built to withstand dust, moisture and frequent start/stop use
Typical Applications:
For EX21 engines fitted to plate compactors, generators, pressure washers, water pumps, aerators and similar equipment. Ideal when the original blower is cracked, warped, missing vanes or contaminated, or during an engine overhaul. Replacing the blower restores designed airflow so machines run reliably in hot weather, confined spaces and dusty site or garden conditions.
Also known as:
Engine cooling fan, flywheel fan, blower wheel, air impeller, fan impeller, engine air blower, cooling impeller, fan rotor.
Fits Models:
EX21
Product Specifications
| L&S Part No. | RB278 54101 H3 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Robin/Subaru |
| OEM No. | RB278 54101 H3 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Robin |
| Key Features | - Genuine Robin/Subaru part for EX21 engines - Moulded plastic impeller; corrosion-proof and impact-resistant - Efficient vane design enhances cooling airflow - Direct replacement; installs with standard hand tools - Suitable for construction and garden machinery with EX21 engines |
| Fits Models | EX21 |
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