WG79000320013 Howo Reducer Rear Nut

The WG79000320013 Howo Reducer Rear Nut is the factory-specified component for Howo heavy-duty truck reducers. We install it to securely lock the gear shafts and bearings inside the reducer assembly. Its job is to prevent loosening from high-frequency vibration and heavy shock loads during operation, keeping power transfer to the drive axle stable and reliable. The threads match Howo’s original standards exactly, so once installed, it fits tightly against the reducer housing and shaft. This close fit helps avoid oil leaks caused by gap issues and extends the reducer's service life. Use this nut to maintain safety and performance in every reducer repair or overhaul.

Send Inquiry

Description

Technical Parameters

The WG79000320013 Howo Reducer Rear Nut is the factory-specified component for Howo heavy-duty truck reducers. We install it to securely lock the gear shafts and bearings inside the reducer assembly. Its job is to prevent loosening from high-frequency vibration and heavy shock loads during operation, keeping power transfer to the drive axle stable and reliable. The threads match Howo's original standards exactly, so once installed, it fits tightly against the reducer housing and shaft. This close fit helps avoid oil leaks caused by gap issues and extends the reducer's service life. Use this nut to maintain safety and performance in every reducer repair or overhaul.

WG79000320013 Howo Reducer Rear Nut

Key Specifications

Part Number: WG79000320013

Material: High-strength alloy steel, heat-treated for durability

Installation: Requires proper torque application to maintain correct bearing preload

Application: Specifically engineered for Howo truck reducer assemblies

Service Life: Extended durability under heavy-duty operating conditions

Compatibility: Direct replacement for factory original parts

advantages

Stays Tight Under Heavy Vibration: we machine this nut from 40Cr alloy steel and apply medium-frequency quenching to the bearing contact surface. This creates a component that maintains consistent clamping force even after repeated torque cycles. In practice, it reliably resists loosening under heavy shock loads, keeping your reducer assembly securely locked.

Precision Fit for Optimal Sealing: our cold rolling process forms perfectly calibrated threads that match OEM tolerances. When torqued to spec, the nut creates uniform axial pressure against the seal ring. This eliminates uneven gaps that typically lead to oil leaks at the reducer output shaft.

Simplified Maintenance: the standard hex design works with common heavy-duty sockets, making installation straightforward with standard shop tools. The heat-treated surface resists edge rounding during torque application, allowing for repeated removal and reinstallation when performing reducer overhaul services.

Compatible Models

Fits Howo T7, T5G, and A7 series trucks. Also compatible with Sinotruk ZZ3257, ZZ3317, and similar heavy-duty models equipped with HW19710 series reducers.

FAQ

Q: What's the main advantage of this specific rear nut?
A: Honestly, it's all about preventing vibration loosening. The WG79000320013 Howo Reducer Rear Nut uses a precision cold-rolled thread profile that mates perfectly with the reducer shaft. Combined with its flange design, this creates a much more secure lock than standard nuts.

Q: Is special tooling required for installation?
A: Not at all. You can install it with standard heavy-duty sockets. The key is using a torque wrench and following the factory spec - that's what ensures proper bearing preload. Just make sure the threads are clean and apply the recommended thread locker.

Q: Will this definitely solve oil leakage problems?
A: It makes a big difference. The precise machining creates an even sealing surface against the oil seal. When torqued correctly, the WG79000320013 eliminates those tiny gaps that cause leaks. Just pair it with a new seal during installation for best results.

Hot Tags: wg79000320013 howo reducer rear nut, China wg79000320013 howo reducer rear nut manufacturers, suppliers, factory