T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
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WG9731540001
Sinotruk HOWO
| Attribute | Description |
|---|---|
| Official Name | Exhaust Brake Valve Assembly / Exhaust Pipe with Butterfly Valve |
| Common Names | Exhaust Brake, Engine Brake Valve, Butterfly Valve, EVB |
| OEM Brand | SINOTRUK (China National Heavy Duty Truck Group) |
| Part Number | WG9731540001 |
| Design Type | Bolt-on exhaust pipe with integrated pneumatic butterfly valve |
| Material | High-temperature resistant cast iron body + stainless steel alloy piping |
| Weight | Approx. 8.5 kg – 9.2 kg (varies slightly by production batch and wall thickness) |
| Compliance Standards | ISO9001, TS16949, Euro II / III / IV emission compatibility |
| Origin | Jinan, Shandong Province, China |
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Confirm correct model: Ensure WG9731540001 matches your engine and chassis configuration.
Inspect new unit: Check for cracks, deformation, or damaged threads on mounting flanges.
Verify actuator function: Manually test diaphragm movement using clean compressed air (~6 bar).
Clean mating surfaces: Remove old gasket material, rust, and carbon deposits from exhaust manifold and downstream pipe.
Disconnect Old Unit:
Drain air system if necessary.
Disconnect control air hose from actuator.
Loosen all flange bolts and remove old exhaust pipe/valve assembly.
Install New Gasket:
Place new VG2600110036 gasket on both ends (upstream and downstream).
Do not reuse old gaskets.
Position New Assembly:
Align WG9731540001 carefully into place.
Ensure butterfly valve disc rotates freely and does not bind.
Secure with Bolts:
Insert M10x1.5 high-temperature bolts finger-tight first.
Torque evenly in crisscross pattern to 35–45 N·m (refer to service manual).
Reconnect Air Line:
Attach control air tube to pneumatic actuator.
Ensure no kinks or leaks; use quick-connect seal if provided.
Test Operation:
Start engine and activate exhaust brake switch.
Listen for "hiss" of air and observe valve actuation.
Confirm full open/close motion of butterfly plate.
✅ Post-Installation: Recheck bolt tightness after first 300–500 km due to thermal expansion/contraction.
