ECAS Solenoid Valve Internal Overhaul Repair Kit (For WABCO System)
Restore pinpoint pneumatic activation and eliminate permanent air suspension lag with this premium ECAS Solenoid Valve Repair Kit. Specifically curated for high-frequency fleet workshops, this kit provides a complete set of heavy-duty moving components and dynamic seals to overhaul the internal actuation of your vehicle's electronic ride height control valve block without the high expense of replacing the entire unit.
📌 Key Highlights
- Official WABCO Reference: Part number 4728909292 (472 890 929 2), cataloged as premium original quality within the ZF WABCO Aftermarket network.
- Advanced Internal Restoration: Goes beyond basic O-ring replacements by renewing the critical internal plunger assemblies, return springs, and valve cores liable to mechanical jamming or corrosion.
- Industrial Endurance: Constructed with premium oil-resistant elastomers and high-tensile alloy springs to sustain robust performance under a standard 22.0 bar maximum operating limit.
- Cost-Saving Workshop Solution: Weighing 0.65 kg, this kit offers a heavy-duty mechanical refresh that guarantees a secure, leak-free seat, stopping vehicle sagging overnight.
🔄 Cross References & Target Modulator Valves
This solenoid overhaul kit is designed to repair and restore the following central ECAS valve assemblies:
- Compatible WABCO Modulator Blocks: 4728900210, 4728900220 (OptiRide™ Series)
- Manufacturer Part Number (MPN): 4728909292 / 472 890 929 2
- EAN / GTIN Barcode: 04057885288142
🚚 Vehicle Fitment & Applications
| Vehicle Brand | Compatible Commercial Chassis | Suspension Family | Service Notes |
|---|---|---|---|
| SCANIA / DAF / MERCEDES-BENZ | Heavy Duty Trucks & Tractor Units (Euro 5 / Euro 6 Fleets) | WABCO 24V ECAS (Electronically Controlled Air Suspension) | Mechanical & Internal Valve Overhaul. No electronic parameterisation or computer recalibration required post-installation if the original vehicle ECU housing remains intact. |
| HINO / UD TRUCKS | Japanese Fleet Platforms & Rigid Cargo Chassis |
Workshop Tip: Prior to reassembling the internal pistons and springs, ensure the interior bore of the valve block is polished clean of any corrosion, scale, or moisture. Apply a light, even film of technical pneumatic grease to all moving surfaces to guarantee seamless piston travel.
⚙️ Package Contents & Technical Specs
- Product Type: ECAS Valve Internal Plunger & Sealing Rebuild Kit
- Kit Components: Dynamic Plungers, Heavy-Duty Compression Springs, Oil-Resistant O-Rings, Rubber Sealings, and Hardware Screws
- Gross Weight: 0.650 kg
- Condition: 100% Brand New Premium Original Quality Replacement
