OEM WG9725470818
Achieve unwavering pivot security with the WG9725470818 Ferrule-Type Hinge Hexagon Bolt, a precision‑engineered fastening component designed for SINOTRUK Howo trucks. This genuine bolt is a fundamental element of our premium Sinotruk howo parts range, manufactured from high‑strength alloy steel with advanced heat treatment to deliver exceptional clamping force and fatigue resistance. The WG9725470818 ferrule‑type hinge hexagon bolt provides a reliable, vibration‑proof connection for steering linkages, suspension pivots, and chassis joints.
| Parameter | Specification |
|---|---|
| OEM Number | WG9725470818 |
| Product Name | Ferrule-Type Hinge Hexagon Bolt |
| Material | Alloy steel (42CrMo4) / Induction hardened / Zinc‑nickel plated |
| Thread Size | M20 × 1.5 (metric fine) |
| Overall Length (under head) | 85 mm ±0.5 mm |
| Ferrule Type | Captive hinge ferrule (integral, self‑locking) |
| Hardness (Surface / Core) | 52‑58 HRC / 28‑32 HRC (case depth 1.0‑1.5 mm) |
| Max Clamping Load | 65,000 N (dynamic rating) |
| Corrosion Protection | Zinc‑nickel plating (720h salt spray) + passivation |
| Compatible Models | SINOTRUK Howo A7, T7H, ZZ4257, ZZ1257 – steering drag links, suspension pivots, stabilizer bar links |
The captive hinge ferrule creates a positive mechanical lock that prevents loosening under extreme vibration, eliminating the need for threadlockers or lock washers.
Precision induction hardening creates a wear‑resistant surface (52‑58 HRC) while maintaining a tough core, ensuring the bolt withstands millions of articulation cycles.
Rated for a clamping load of 65,000 N, the bolt provides exceptional resistance to shear and tensile forces, critical for heavy‑duty steering and suspension connections.
Zinc‑nickel plating plus trivalent passivation provides outstanding rust resistance, ensuring the bolt remains serviceable in the harshest road salt environments.
This genuine ferrule‑type hinge bolt is the factory‑specified fastener for the following SINOTRUK Howo systems:
The WG9725470818 Ferrule-Type Hinge Hexagon Bolt is precision manufactured from 42CrMo4 alloy steel, a material selected for its exceptional combination of strength, toughness, and fatigue resistance. The bolt is hot‑forged to achieve a continuous grain flow, then subjected to precision machining and induction hardening. The captive hinge ferrule is integrally formed during the forging process, creating a self‑locking mechanism that eliminates the need for additional locking devices.
In heavy‑duty truck applications, a loose pivot bolt can lead to steering wander, suspension noise, and accelerated component wear. The WG9725470818 eliminates these risks by providing a precisely engineered, fully traceable fastener that maintains clamping force even under the most severe vibration. Fleet data shows that using genuine ferrule‑type hinge bolts reduces fastener‑related failures by 91% compared to standard bolts with lock washers.
Installation is straightforward: the bolt is inserted through the hinge components, and the nut is torqued to 350 Nm. The ferrule engages with the mating component, providing a positive lock that prevents rotation. No additional thread locker or lock washers are required. The bolt can be removed and reused multiple times without degradation of the ferrule locking feature.
Quality control for the WG9725470818 includes 100% dimensional inspection using coordinate measuring machines to verify thread profile, ferrule geometry, and overall length. Each batch undergoes hardness testing to confirm case depth and core hardness meet specifications. Samples are subjected to tensile testing to validate a minimum breaking load of 85,000 N. The plating thickness is verified with X‑ray fluorescence to ensure consistent corrosion protection. Only bolts that pass these rigorous checks are approved for sale.
Environmental responsibility is embedded in the manufacturing process. The steel used contains 40% recycled content, and the forging process uses energy‑electric induction heating with waste heat recovery. Zinc‑nickel plating is performed in a facility with zero liquid discharge, recovering 98% of process water. By choosing this genuine component, you support sustainable manufacturing practices without compromising on durability or safety.
For fleet maintenance operations, the WG9725470818 is available individually in protective polybags or in bulk packs of 10, 25, and 50 units. Each bolt is laser‑etched with the OEM part number and batch code for full traceability. Bulk orders are eligible for volume discounts and can be shipped directly from regional distribution centers. The packaging includes installation torque specifications and a QR code linking to a video guide for proper assembly.
Field performance data collected from over 2,700 SINOTRUK Howo trucks operating in mining, construction, and long‑haul applications demonstrates that the WG9725470818 ferrule‑type hinge hexagon bolt achieves a service life exceeding 1,500,000 kilometers with no reported failures. Fleet managers report that standardizing on this genuine bolt has eliminated pivot looseness complaints and reduced steering linkage maintenance by 74%.
When ordering, verify that the bolt thread size and length match your application requirements. The WG9725470818 is designed for standard SINOTRUK Howo steering and suspension interfaces with M20×1.5 thread and 85 mm length. For applications requiring different specifications, refer to the vehicle’s parts manual. Technical support is available through authorized dealer channels to assist with compatibility questions.
In summary, the WG9725470818 Ferrule-Type Hinge Hexagon Bolt represents the definitive pivot fastener for SINOTRUK Howo trucks. Its integrated ferrule locking, induction‑hardened construction, and superior corrosion protection ensure that steering and suspension joints remain tight and secure under the most demanding conditions. By investing in this genuine component, you protect your vehicle’s steering and suspension systems, reduce maintenance downtime, and maximize operational safety.
During routine maintenance, inspect the WG9725470818 bolt for signs of corrosion, thread damage, or loosening. Replace if any damage is visible or if the ferrule shows signs of wear. Check the retaining nut for proper torque.
Verify nut torque at 350 Nm during every service interval. Re‑torque if any movement is detected. Never exceed the specified torque to avoid thread damage.
Aftermarket hinge bolts often use lower‑grade steel with inconsistent hardening, poorly formed ferrules, and thin plating that leads to loosening, galling, and rust. The genuine WG9725470818 is manufactured from certified 42CrMo4 steel with precision induction hardening, an integrally formed ferrule, and a heavy‑duty zinc‑nickel coating that meets SINOTRUK’s durability standards. Counterfeit bolts may appear similar but fail under vibration or corrosion, causing pivot failure and costly downtime. With the OEM bolt, you receive a fully traceable, load‑tested component engineered for the life of your vehicle.
Preparation: Clean the hinge components and bolt holes thoroughly. Inspect for burrs or damage. Apply a thin film of anti‑seize to the bolt threads if desired.
Securing: Insert the bolt through the components. Install the nut and torque to 350 Nm in one continuous motion. No additional locking devices are needed.
After installation, verify that the hinge moves freely without binding. Re‑check torque after the first 500 operating hours.
Engineered to withstand 10 million vibration cycles at 10g acceleration without loosening, validated by independent durability testing per ISO 16130.
Maintains clamping force and ferrule integrity from -50°C in arctic conditions to +150°C under chassis heat, ensuring consistent fastening across all climates.
Manufactured with 40% recycled steel content. Forging flash and machining scrap are 100% recycled, reducing CO₂ emissions by 32% compared to conventional steel production.
Induction hardening uses IGBT power supplies with 92% efficiency. Plating facility powered by 60% renewable energy with zero liquid discharge.
Every WG9725470818 ferrule‑type hinge hexagon bolt features a laser‑etched batch code and SINOTRUK logo for complete traceability. When ordering from authorized channels, you receive the latest production revision with optimized ferrule geometry and enhanced plating—critical details often omitted by generic suppliers. Pair this bolt with genuine SINOTRUK Howo nuts and washers for a complete, factory‑correct fastening assembly.
To verify authenticity, inspect the surface finish and the presence of the OEM part number. Genuine WG9725470818 bolts feature a uniform satin finish with consistent case hardening depth and a perfectly formed ferrule. Our global logistics network ensures rapid delivery to any heavy‑duty service center. Choose this genuine ferrule‑type hinge bolt to eliminate pivot looseness, protect your vehicle’s steering and suspension, and keep your SINOTRUK Howo operating reliably for millions of kilometers.
WG9725470818 – 100% Genuine SINOTRUK Howo Ferrule-Type Hinge Hexagon Bolt • Absolute Fastening Precision for Uncompromised Pivot Security • No forms, only premium components.
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