MultiStar Cold – Your Source for Bus Air Conditioner Parts
The Eberspächer Flowtronic 6000 SC (U4856) is a genuine 24V brushless circulating pump designed for Hydronic L series heaters and compatible with Webasto, Valeo, and Spheros systems. Featuring 210W power, 6,000 l/h flow rate, a sealless magnetic coupling, and supplied complete with mounting bracket, it delivers reliable coolant circulation for bus and commercial vehicle heating systems .
Multistar Cold is your one-stop supplier for bus AC parts and transport refrigeration parts – original new and China-made options at competitive prices.
Genuine OEM Brushless Circulating Pump – One-Stop Bus AC & Transport Refrigeration Parts Supplier
Eberspächer:
252488250100, 25.2488.25.0100
252488250000, 25.2488.25.0000
251818250000, 25.1818.25.0000
Valeo / Spheros:
11117198A, 11117198B, 11117198C
11117205, 11117284A
2710194A, 11117020A
SPH11117198A, SPH11117198B
Webasto:
9810016, 9810016A, 9810016B
1311280, 1311280B, 1311280C, 1311280D
EvoBus (Mercedes-Benz):
002 835 29 64, A002 835 29 64
002 835 58 64, A002 835 58 64
MAN:
36.77905.6003
Solaris:
1802.904.170, 1802900204
✨ Key Features & Benefits
- Genuine OEM Quality with Bracket – Original equipment reliability, supplied complete with mounting bracket for easy installation
- Brushless EC Motor – High efficiency, low power consumption, and long service life
- Sealless Magnetic Coupling – Watertight throughout entire lifetime, no mechanical seal to wear out; no steam leakage
- Soft Start – Motor ramps up to nominal speed within 5 seconds for material-friendly operation
- Dry-Running Protection – Automatically shuts off after 45 minutes of dry operation; reactivates after power disconnect
- Blocking & Overload Protection – Protects motor from impeller blockage and hydraulic overpressure
- Sleep Mode – Internal electronics switch off when not in use, consuming < 2 mA
- ECE-R110 Approved – Officially approved for installation in motor vehicles
- One-stop supplier for bus AC & transport refrigeration parts
📊 Technical Specifications
| Parameter | Specification |
|---|---|
| Part Numbers | 252488250100, 25.2488.25.0100, 25 2488 25 01 00 |
| Alternate Numbers | U4856, U4856.001, U4856.008, Aquavent 6000SC |
| Voltage | 24V DC |
| Nominal Power | 210W |
| Flow Rate | 6,000 l/h (against 0.4 bar) |
| Operating Voltage Range | 18 – 32V |
| Water Connection Diameter | Ø 38mm |
| Electrical Connector | AMP 6.3 |
| Motor Type | Brushless, magnetic coupling (sealless) |
| Dimensions (L x W x H) | 229 x 115 x 110 mm |
| Weight | 2.5 kg |
| Scope of Supply | Water pump, clip 90-110, bracket, 4x metal rubber buffers with nuts, installation instructions |
| Protection Features | Dry-running protection, blocking protection, overload protection, soft start |
🚛 Compatible Applications
This circulating pump is an original equipment part for Eberspächer Hydronic L16/L24/L30/L35 heaters and is also compatible with Webasto, Spheros, and Valeo pre-heaters .
| Application | Details |
|---|---|
| Eberspächer Heaters | Hydronic L16, L24, L30, L35 |
| Webasto Heaters | DBW 230, DBW 300, DBW 350, Thermo 230, Thermo 300, Thermo 350 |
| Spheros / Valeo | Aquavent 6000SC systems |
| Bus Brands | MAN, Mercedes-Benz, Volvo, Scania, Van Hool, EvoBus, Setra, Neoplan, Solaris, Ikarus |
| Advantage | Benefit |
|---|---|
| Factory Direct | No middlemen – competitive pricing |
| Quality Focus | OEM-grade materials and testing standards |
| Fast Delivery | Ready stock and quick production turnaround |
| Technical Support | Expert assistance for fitment verification |
| Global Reach | Shipping to 50+ countries worldwide |
| Flexible MOQ | Low minimum order quantities |
Multistar Cold – Your one-stop supplier for bus AC parts, transport refrigeration parts, Thermo King parts, and Carrier Transicold parts. OEM-grade quality, competitive pricing, and global shipping from China.