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The handlebar riser bushing bolts are essential for maintaining proper steering geometry and rider comfort in heavy‑duty trucks. The genuine SINOTRUK HOWO WG1642440040 Handlebar Riser Bushing Bolts are OEM‑grade fasteners manufactured to exacting tolerances for a perfect fit and lasting durability. As a critical element of the trusted Sinotruk howo parts family, these bolts guarantee a secure connection between the handlebar riser and the frame, reducing vibration and ensuring precise steering control. Made from high‑strength alloy steel with a corrosion‑resistant finish, the WG1642440040 bolts withstand the extreme loads and vibrations of mining, construction, and long‑haul applications.
Each bolt is precision‑threaded and heat‑treated to achieve the optimal balance of tensile strength and ductility. The included high‑quality bushings dampen shock loads, protecting the steering components from premature wear. Investing in this authentic set ensures your HOWO maintains its responsive handling and operator comfort for years to come.
Handlebar Riser Bushing Bolts
Болты втулки подъема руля
Pernos de buje elevador del manillar
The WG1642440040 bolts are manufactured from high‑grade 10.9 alloy steel, providing exceptional tensile strength and resistance to shearing forces. Each bolt is heat‑treated and quenched to achieve a consistent hardness that prevents stretching or failure under heavy loads. The threads are rolled after heat treatment for superior fatigue resistance, ensuring the bolts maintain their clamping force even after millions of steering cycles.
The kit includes precision‑molded polyurethane bushings that absorb vibration and shock loads from the road. These bushings are formulated to resist oil, grease, and ozone, maintaining their elasticity in extreme temperatures from -40°C to +120°C. The combination of robust bolts and compliant bushings ensures the handlebar riser remains securely mounted while isolating the driver from harsh feedback.
A multi‑layer anti‑corrosion coating, including zinc‑plating and a clear chromate seal, protects the WG1642440040 bolts from rust caused by road salt, moisture, and chemicals. This finish has been tested to withstand over 500 hours of salt spray, ensuring the hardware remains serviceable even after years of exposure. All components are packaged as a complete set with the correct washers and nuts for a hassle‑free installation.
The table below provides detailed technical specifications for the genuine SINOTRUK HOWO WG1642440040 Handlebar Riser Bushing Bolts. This data is essential for verifying compatibility and performance characteristics.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | WG1642440040 | SINOTRUK HOWO Original Code |
| Product Name | Handlebar Riser Bushing Bolts (Kit) | Includes bolts, bushings, washers, nuts |
| Bolt Material | Alloy steel, grade 10.9 | Tensile strength ≥ 1040 MPa |
| Bushing Material | High‑grade polyurethane (95A Shore) | Oil, ozone, and wear resistant |
| Thread Size | M16 x 1.5 | Fine pitch for precise adjustment |
| Bolt Length (under head) | 90 mm | Accommodates riser and bushings |
| Bushing Dimensions | OD 30 mm, ID 16.2 mm, height 25 mm | Designed for controlled compliance |
| Finish | Zinc‑plated + yellow chromate | >500 h salt spray resistance |
| Torque Specification | 180–200 N·m | Apply thread locker |
| Kit Weight | 0.85 kg | For a set of 4 bolts + components |
| Compatible Models | HOWO 6×4, 8×4, Tractor, Dump (select years) | Verify with service manual |
Correct installation of the WG1642440040 handlebar riser bushing bolts is essential for steering precision and safety. Begin by safely supporting the front of the truck and removing any components obstructing access to the handlebar riser. Carefully remove the old bolts and bushings, noting their orientation. Clean the mounting surfaces on the frame and riser, removing any rust or debris that could affect alignment.
Insert the new polyurethane bushings into the riser and frame brackets. Apply a medium‑strength thread locker to the threads of the new WG1642440040 bolts. Insert the bolts through the washers, bushings, and riser, then thread on the new nuts. Tighten the bolts evenly in a crisscross pattern to the specified torque of 180–200 N·m. After installation, cycle the steering lock‑to‑lock to verify smooth operation and no binding. The WG1642440040 kit is a direct OEM replacement for SINOTRUK HOWO models; always confirm compatibility by matching the part number with your vehicle’s service manual.
Before final tightening, ensure the handlebar riser is centered and the bushings are seated squarely. Apply anti‑seize to the bolt shanks where they pass through the bushings to prevent corrosion and ease future removal. After 500 km, re‑check torque as the bushings may settle.
The rigid yet compliant mounting provided by the WG1642440040 kit eliminates handlebar wobble and reduces steering input lag. Drivers experience more direct feedback and improved handling, especially on rough terrain.
The advanced polyurethane bushings absorb high‑frequency vibrations before they reach the handlebars, significantly reducing driver fatigue during long hauls. This leads to a more comfortable and productive workday.
The zinc‑plated finish with chromate seal ensures the WG1642440040 bolts remain free of rust, even after years of exposure to road salt, rain, and chemicals. This makes future disassembly easier and prevents bolt seizure.
Grade 10.9 bolts and durable polyurethane bushings outlast standard hardware by a wide margin. Fewer replacements mean lower maintenance costs and less downtime for your fleet.
Over time, handlebar riser bushings and bolts can wear due to constant steering loads and vibration. Common indicators that the WG1642440040 kit needs replacement include excessive handlebar free play, clunking noises when turning, visible cracking or deformation of the bushings, and rust or corrosion on the bolts. If the steering feels loose or wanders, inspect the riser mounting immediately.
Ignoring worn riser hardware can lead to accelerated wear of steering components, such as the steering box and tie rod ends, and in extreme cases, loss of steering control. Replacing the bolts and bushings promptly with genuine WG1642440040 restores precise steering and ensures driver safety. Always replace all bolts in the set, even if only one appears damaged, to maintain balanced clamping.
To maximize the life of your WG1642440040 bolts and bushings, perform regular visual inspections during routine maintenance. Check for any signs of bushing cracking, swelling, or hardening. Ensure the bolts are tight and free of corrosion. During chassis lubrication, inspect the area for grease or oil contamination that could degrade the polyurethane.
If the truck operates in severe conditions (e.g., constant off‑road, high vibration environments), consider inspecting the riser hardware every 50,000 km. When replacing other steering components, it is a good practice to also replace the riser bushings and bolts to ensure consistent performance. Always use genuine SINOTRUK HOWO replacement parts for steering system repairs.
Generic aftermarket bolts often use lower‑grade steel, incorrect thread pitches, and substandard bushings that fail prematurely. The genuine SINOTRUK HOWO WG1642440040 handlebar riser bushing bolts are engineered to the exact specifications of your truck’s steering system, ensuring correct fit, clamping force, and vibration damping. They are manufactured under strict quality controls using the same materials and processes as the original parts fitted at the factory.
By choosing the authentic WG1642440040, you protect your investment, maintain steering precision, and ensure driver safety. For fleet managers and owner‑operators who demand the best, the genuine WG1642440040 is the only responsible choice for maintaining the legendary handling of SINOTRUK HOWO trucks.
The WG1642440040 Handlebar Riser Bushing Bolts are part of SINOTRUK’s comprehensive line of genuine steering and suspension components. Whether you operate in extreme cold, desert heat, or humid coastal environments, this hardware delivers dependable performance. Its robust construction resists wear and corrosion, providing peace of mind for every journey. Always insist on genuine parts to keep your HOWO running at its best.
For workshops and service centers, stocking the genuine WG1642440040 ensures that every steering repair meets the highest standards. Customers will appreciate the improved feel, quiet operation, and long service life. With the WG1642440040, you are not just replacing fasteners—you are restoring the precision and safety of the steering system.
Remember, a well‑maintained steering system is crucial for driver control and vehicle safety. Using genuine SINOTRUK HOWO parts like the WG1642440040 is an investment in reliability, performance, and operational efficiency. Trust the original, trust the WG1642440040.
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