1. Product Overview
The WG79000320013 Reduction Gear Nut (Rear) is a precision fastening component used in the rear reduction gear assembly of SINOTRUK HOWO heavy-duty trucks. It securely locks the reduction gear components in place, ensuring accurate torque transmission and maintaining the stability of the final drive system. A properly installed reduction gear nut helps prevent loosening under heavy loads, reduces drivetrain wear, and improves vehicle reliability during long-term operation.
This part is widely used in heavy-duty trucks operating in mining, construction, long-haul transportation, and other demanding working conditions.
2. Vehicle Compatibility
OEM Number
WG79000320013
Suitable Vehicle Models
SINOTRUK HOWO
HOWO A7
HOWO T5G
HOWO T7H
Compatible with selected SINOTRUK heavy-duty axle reduction gear assemblies
Compatibility Services
OEM number matching
VIN number verification available
Technical support for compatibility confirmation before ordering
3. Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Reduction Gear Nut (Rear) |
| OEM Number | WG79000320013 |
| Material | High-strength alloy steel |
| Thread Type | Precision machined metric thread |
| Surface Treatment | Anti-corrosion coating / Phosphating |
| Hardness | Heat-treated for high strength |
| Installation Position | Rear reduction gear assembly |
| Application | Heavy-duty truck drive axle |
4. Material & Manufacturing Process
Manufactured from premium alloy steel, the nut undergoes precision CNC machining and controlled heat treatment to achieve excellent tensile strength and wear resistance.
Production features include:
Precision thread machining
Heat treatment for enhanced hardness
Anti-rust surface treatment
Strict dimensional tolerance control
100% thread inspection before shipment
These manufacturing processes ensure reliable fastening performance even under continuous heavy-load operation.
5. Quality Control
Quality Level:
OEM Quality
High-quality Aftermarket Available
Inspection Includes:
Thread accuracy inspection
Dimensional inspection
Hardness testing
Surface finish inspection
Material verification
Quality Management:
ISO 9001 Manufacturing System
Batch traceability available
6. Service Life & Performance
Designed for long-term heavy-duty operation, this reduction gear nut offers:
Excellent resistance to vibration loosening
High fatigue strength
Stable torque retention
Excellent corrosion resistance
Reliable performance under high-load and high-temperature conditions
Suitable for trucks operating in:
Mining sites
Construction projects
Desert environments
Mountain roads
Long-distance freight transportation
7. Replacement Benefits
Replacing worn or damaged reduction gear nuts can help:
Maintain proper gear preload
Prevent bearing movement
Reduce abnormal drivetrain noise
Improve transmission efficiency
Lower maintenance costs
Extend axle service life
8. Packaging
Packaging Options:
Neutral Packaging
Customized Brand Packaging
Export Carton
Wooden Case (for bulk orders)
Protection:
Anti-rust treatment
Moisture-proof packaging
Shock-resistant packing
Identification:
OEM Label
Barcode
Batch Number
Product Identification Label
9. Supply Capacity
Regular stock available for fast-moving items
Fast delivery for standard orders
Flexible MOQ
Stable production capacity for bulk purchasing
Export experience to Africa, Southeast Asia, the Middle East, and South America
10. Technical Support & After-sales Service
We provide:
OEM number confirmation
VIN matching service
Installation guidance
Professional technical consultation
Product warranty according to quality agreement
Fast response after-sales support
11. OEM & ODM Service
We support:
OEM manufacturing
ODM customization
Drawing-based production
Customized packaging
Laser marking
Material customization
Small batch sample production
12. Application Cases
The WG79000320013 Reduction Gear Nut has been widely supplied for SINOTRUK HOWO trucks used in:
Mining trucks
Dump trucks
Tractor trucks
Cargo trucks
Construction vehicles
Our products are exported to customers in Africa, Southeast Asia, the Middle East, South America, and other international markets.
Frequently Asked Questions (FAQ)
Q1: Can you verify compatibility by VIN number?
Yes. We provide professional VIN matching services before shipment.
Q2: Is OEM quality available?
Yes. We offer OEM-quality products as well as high-quality aftermarket options.
Q3: Do you support custom packaging?
Yes. Neutral packaging, branded packaging, and customized labels are all available.
Q4: What is your minimum order quantity?
MOQ is flexible and depends on the product and order requirements.
Q5: Can samples be provided?
Yes. Sample orders are available for quality evaluation before bulk purchase.
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