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$28799
3 Day Lead Time
Due to limited availability, we will confirm your order and notify you within 1 business day.
WABCO 9753034730 Part Description
Manufacturer
Features & Benefits
- Includes a built-in check valve to isolate the reservoir supply air
- Equipped with an integrated tire inflation valve for roadside service applications
- Dual mounting configurations provide secure installation on compatible systems
- Durable internal sealing components help minimize high-pressure air leakage
WABCO Air Brake Unloader Valve
The WABCO Air Brake Unloader Valve eliminates unnecessary mechanical drag on commercial vehicle engines by venting residual pressure from the air compressor head during the unloading phase. As the primary storage reservoirs reach full capacity, the valve receives a pneumatic signal from the governor to open a dedicated exhaust path, allowing the compressor pistons to cycle freely without working against trapped system pressure. Without this pressure relief, unnecessary compressor loading can accelerate wear on internal components and increase engine demand over time. By controlling compressor unloading as intended, the WABCO 9753034730 helps reduce operating strain while supporting efficient air system performance.
WABCO 9753034730 Specifications
Product Attributes
| Size | 169 x 108 x 91 |
| Opening Pressure | 12.0 bar |
| Weight | 1.664 |
| Max. operating pressure | 362.6 psi |
| Temperature Range | -40°C to +80°C |
| Cut-Out Pressure | 8.1 bar |
| Port Thread 1-2 | M16 x 1.5 |
| Operational Range | 0.6+0.4 bar |
| Calculated Volume (dm³) | 1.661 |
| Port thread 3 | Union Ø 0.79 in |
| Port thread 1 | M22 x 1.5 |
| Version | With tire inflating valve |
| Port threads | M22 x 1.5 |
| Mounting | 2x Ø 8.8 mm |
| Port thread 22 | M12 x 1.5 |
| Type | With one way valve |
| Port thread 21 | M22 x 1.5 |
WABCO 9753034730 Cross References
| Brand | Part Number |
|---|---|
| 02516923, 02516973, 42085762, 81521016083, 81521016085, 81521016132, 0014310606, 0014313406, 0024314906, 7700051785 | |
| DAF | 1506504 |
| IVECO | 02516892 |
| KOGEL | 6789355 |
| MAN | 81521016076 |
| MERCEDES-BENZ | 0014310006 |
| MERITOR | S9753034730 |
| NEOPLAN | 1102733544138 |
| NEWSTAR | S-9976 |
| SCANIA | 5000243947 |
| SCHMITZ | 9454310 |
| WABCO | S9753034730 |
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