Shandong Shengyue Technology Development Co.,Ltd is one of the most professional sinotruk sitrak c7 howo t7 t5g hand brake valve 811w52315-6156 manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
SINOTRUK SITRAK C7 HOWO T7 T5G Hand Brake Valve 811w52315-6156
As a manually operated pressure control valve, it directly regulates the supply of air to-or the exhausting of air from-the spring brake chamber (parking brake cylinder). When the handbrake is engaged (pulled up), the valve cuts off the air supply and vents the air pressure, allowing the powerful spring to expand and lock the brakes. When the handbrake is released (pushed down), the system is re-pressurized, overcoming the spring force to disengage the brakes.
Common Failure Modes and Maintenance
1. Air leakage from the valve body: Typically caused by wear or aging of the internal rubber seal (O-ring), or by the presence of impurities (such as moisture or oil) in the air circuit that damage the valve spool.
2. Handle sticking or failing to return to its original position: Often due to fatigue or damage to the internal return spring, or a lack of lubrication in the mechanical operating linkage.
3. Slow release of the parking brake: Usually caused by a partial blockage in the valve's exhaust port or a check valve, which results in an excessively slow pressure drop within the lines.
Sinotruk Hand Brake Valve Replacement BOM Detail List
| No. | Part Number | Part Name (EN) | Specification / Parameter | Qty | Replacement Recommendation |
|---|---|---|---|---|---|
| 1 | 811W52315-6156 | Hand Brake Valve Assembly | Genuine Sinotruk / 3-Port Main Line Interface | 1 pc | Core Component (Replace as whole assembly if faulty) |
| 2 | 811W52315-6156/SK | Valve Body Seal Repair Kit | Includes V-rings, O-rings, and Dust Seals | 1 set | Optional (Used for air leak repair without replacing assembly) |
| 3 | WG9000360121 | Straight Push-in Connector | M16×1.5 - Φ8mm | 2 pcs | Replace if damaged during disassembly (Inlet/Outlet) |
| 4 | WG9000360522 | Elbow Push-in Connector | M16×1.5 - Φ8mm | 1 pc | Replace if damaged (Used for tight space clearance) |
| 5 | 90003989304 | Dowty Seal Ring (Bonded Washer) | M16 (Copper/Rubber Composite Material) | 3 pcs | Mandatory Replacement (Must be renewed once disassembled) |
| 6 | WG9000360601 | High-Pressure Nylon Brake Hose | OD Φ8mm × ID Φ6mm | 3 m | Replace if old hose shows aging, scratches, or kinks |
| 7 | 90003930263 | Exhaust Muffler / Silencer | M16×1.5 (Porous Muffler Cap) | 1 pc | Recommended (Old one gets clogged easily with oil and mud) |
| 8 | Q150B0620 | Hexagon Head Bolt | M6×20 (Grade 8.8 High-Strength Zinc-Plated) | 2 pcs | Replace if rusted or thread-stripped |
| 9 | Q40306 | Spring Washer | 6mm (Anti-Loosening Spring Washer) | 2 pcs | Recommended (Ensures secure mounting to cabin base) |
| 10 | N/A | Pneumatic Brake System Silicone Grease | Low-Temperature, High-Viscosity Lubricant | A.R. | Essential Consumable (For O-rings and connector threads) |
DETAILS
| DESCRIPTION | Hand Brake Valve | PART NUMBER | 811w52315-6156 |
| WEIGHT | 1kg | VOLUME |
110mm × 95mm × 165mm |
| TRUCK MOLDE | SINOTRUK | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | CABIN |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
Hot Tags: sinotruk sitrak c7 howo t7 t5g hand brake valve 811w52315-6156, manufacturers, suppliers, factory, parts, genuine, original, HOWO fan belt, howo Front cover, HOWO Heater water tank, HOWO SUN SHADE, sinotruk HOWO cabin parts, Sinotruk V Belts
