Description
Overview:
The Jet A for Robin EX21 Engine is a genuine replacement carburettor fuel jet designed to meter fuel accurately for reliable running and clean combustion. Manufactured from precision‐machined brass for durability and resistance to corrosion, it restores correct fuel delivery within the EX21 carburettor. Supplied under OEM No. RB278 62400 08, it is a direct fit for the Robin EX21, helping to resolve issues caused by worn or blocked jets such as poor starting, hesitation, or uneven idle. This is genuine Robin stock and is unused; however, as a vintage part it may show light tarnishing or storage marks that do not affect performance. Ideal for tradespeople and DIY users maintaining compact plant, generators, pumps, and garden machinery powered by the EX21.
Key Features:
- Genuine Robin part for assured compatibility and performance
- OEM reference RB278 62400 08 for accurate identification
- Precision brass construction for long service life and corrosion resistance
- Restores correct fuel metering for stable idle and consistent power under load
- Helps improve starting, throttle response, and fuel efficiency when the old jet is worn or clogged
- Direct-fit design for straightforward installation with standard hand tools
- Suitable for routine maintenance or refurbishment of Robin EX21 carburettors
- Reliable choice for heavy, frequent use in site and garden equipment
- Unused vintage stock; minor storage tarnish or dust may be present without affecting function
- Supports cleaner running and reduced fouling when paired with clean fuel and a serviced carburettor
Typical Applications:
Used during carburettor service on Robin EX21 engines found in generators, pressure washers, plate compactors, pumps, and larger garden machines. Ideal when addressing symptoms such as surging, flat spots, high fuel use, or hard starting. Fits as part of preventative maintenance, post-storage recommissioning, or after contamination from stale fuel or debris.
Also known as:
Carburettor fuel jet, carb jet, metering jet, Jet A (EX21), fuel orifice, carburettor nozzle for EX21, EX21 fuel metering screw jet, Robin EX21 carb jet.
Fits Models:
EX21
Product Specifications
| L&S Part No. | RB278 62400 08 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Robin |
| Key Features | - Genuine Robin part ensures compatibility with EX21 engines - OEM No. RB278 62400 08 for precise identification - Precision-machined brass resists corrosion and wear - Restores fuel metering for stable idle and power - Direct-fit design simplifies installation with standard tools |
| Fits Models | EX21 |

