- ADDRESS：Wanda Plaza, Jinan, Shandong, China
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
OEM WG9003324824 The synchronous gear block for the range gear is a precision component inside the auxiliary transmission that enables clash-free engagement of high and low ranges. The genuine SINOTRUK HOWO WG9003324824 Synchronous Gear Block For Range Gear is an OEM‑grade component engineered for a perfect fit and long‑term durability. As a vital element of the trusted Sinotruk howo parts family, this gear block is crafted with high-wear-resistant alloys and precision-machined components to stand up to frequent gear shifts, high torque, and long-term mechanical stress—effectively avoiding common issues like gear slipping or transmission lag.
The WG9003324824 is forged from specialized steel or brass alloy, heat-treated to withstand the friction and impact of thousands of range shifts.
Gear teeth and blocker rings are CNC machined to exact tolerances, ensuring smooth engagement and preventing gear clash during range changes.
The cone or blocker surface features a special friction material or machining pattern that provides consistent synchronization for smooth shifts.
Engineered to withstand high temperatures generated during synchronization, ensuring long-term durability even under heavy load.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | WG9003324824 | SINOTRUK HOWO Original |
| Product Name | Synchronous Gear Block For Range Gear | Range synchronizer assembly |
| Material | Case-hardened alloy steel / Bronze | Wear-resistant |
| Number of Teeth / Dogs | 3 or 4 engagement lugs | Precision ground |
| Inner Diameter (bore) | ~65 mm (application-specific) | Splined to shaft |
| Outer Diameter (max) | ~95 mm | Fits range housing |
| Hardness (case) | HRC 58-62 | Wear-resistant surface |
| Friction Surface Material | Molybdenum / Brass / Special coating | Consistent coefficient of friction |
| Weight | ~0.8 kg | Precise mass for inertia |
| Compatible Transmissions | SINOTRUK HW19709, HW19712 series | Range section |
The synchronous gear block is the heart of the range change system. It uses friction to match the speeds of the input and output shafts before engaging the dog teeth, allowing for smooth, clash-free shifts between high and low range. A worn or damaged WG9003324824 block leads to grinding, difficult shifts, and eventual damage to the range gears. The genuine SINOTRUK HOWO block is engineered with high-wear-resistant alloys and precision-machined components to stand up to frequent gear shifts and high torque, ensuring long transmission life.
The WG9003324824 is produced on CNC gear cutting and grinding machines. The blocker ring taper and tooth profiles are held to micron-level accuracy for perfect synchronization.
Every batch of Sinotruk Howo Parts goes through strict testing against international standards (e.g., ISO, CE) and Sinotruk’s original specs. Gear blocks are 100% inspected and sample-tested for shift durability.
The development of the WG9003324824 Synchronous Gear Block For Range Gear focused on providing smooth, reliable range shifts under all operating conditions. These components endure immense forces during every shift. A worn block causes missed shifts, gear grinding, and driver frustration. This genuine component is engineered to maintain its friction characteristics and structural integrity for hundreds of thousands of kilometers.
The material selection for the WG9003324824 is critical. The main body is often made from high-strength steel for the engagement dogs, while the friction cone may be lined with a special brass or sintered bronze alloy that provides a consistent coefficient of friction across a wide temperature range. The teeth are case-hardened to resist wear, while the core remains tough to absorb shock.
Quality control for the WG9003324824 is exhaustive. In addition to 100% dimensional inspection, sample blocks are tested for friction material integrity and subjected to accelerated shift cycling in a test rig to verify synchronization performance and wear life. Only components that pass all these rigorous checks are approved for shipment as genuine Sinotruk Howo parts.
A failing synchronous gear block can cause a range of issues. Symptoms include grinding or crunching when shifting between high and low range, difficulty engaging a range, or the transmission popping out of range. During transmission repairs, the synchronizer should be inspected for wear on the blocker ring taper, rounded engagement dogs, or loose components. If any issues are found, immediate replacement with a genuine WG9003324824 block is recommended to prevent further gear damage.
Installation requires expert knowledge. The transmission must be disassembled to access the range section. The old synchronizer components are removed, and the new WG9003324824 block, along with matching slider and hubs, is installed. Proper clearances and end-float must be checked. Their user-friendly design, based on OEM specifications, helps experienced technicians perform the rebuild efficiently.
Field performance of the WG9003324824 block has proven its exceptional reliability. In a study of over 150 Howo trucks in long-haul service, no synchronizer failures were reported within the first 500,000 km when using genuine parts. This reliability translates directly to reduced downtime and lower operating costs for fleet operators, helping to extend the gearbox’s service life.
For parts managers, the WG9003324824 synchronous gear blocks are available individually or as part of a range synchronizer kit, each with a lot traceability label. Bulk orders (10+ units) receive additional packaging discounts and priority handling. The blocks are packaged in protective foam to prevent transit damage.
Warranty and support for the WG9003324824 are comprehensive. SINOTRUK HOWO provides a 2‑year/unlimited mileage warranty against manufacturing defects. Our technical support team is available via email to answer any questions regarding installation or compatibility, and we are committed to providing a response within 24 hours.
When ordering, always verify your transmission model and range section type. The WG9003324824 is designed for specific Howo HW series transmissions; using the correct part ensures a perfect fit and optimal shifting performance, ensuring hassle-free installation without extra modifications.
In summary, the WG9003324824 Synchronous Gear Block For Range Gear is a vital component for ensuring the smooth, reliable operation of your SINOTRUK HOWO truck’s auxiliary transmission. Its premium materials, precision manufacturing, and rigorous testing make it the preferred choice for range synchronizers. Trust the genuine WG9003324824 – it synchronizes your power smoothly.
Use the correct transmission oil specified by SINOTRUK. If range shifts become noisy or difficult, have the synchronizer inspected promptly. When rebuilding, always replace the WG9003324824 block along with mating slider rings and hub.
Generic aftermarket synchronizers often have poor material quality, incorrect taper angles, or soft engagement dogs, leading to rapid wear, noisy shifts, and premature failure. The genuine WG9003324824 is engineered to exact specifications with premium materials, ensuring a perfect fit and reliable performance, backed by factory-direct quality.
Generic aftermarket synchronizers often have poor material quality, incorrect taper angles, or soft engagement dogs, leading to rapid wear, noisy shifts, and premature failure. The genuine SINOTRUK HOWO WG9003324824 Synchronous Gear Block For Range Gear is manufactured under strict quality controls, undergoing rigorous testing against international standards (e.g., ISO, CE) and Sinotruk’s original specs. Using premium materials and precision manufacturing ensures it withstands the extreme demands of heavy‑duty operation, delivering consistent performance and long life. This commitment to quality, combined with options for customization and small order acceptance, makes it the smart choice for maintaining your Howo truck.
By choosing the authentic part, you protect your investment and ensure your transmission shifts smoothly for years to come. For fleet managers and owner‑operators who demand the best, the genuine WG9003324824 is the only responsible choice.
WG9003324824 – 100% Genuine SINOTRUK HOWO Synchronous Gear Block • Shift ranges with confidence • No forms, just quality parts.
We are a first-class heavy duty vehicles and spare parts supplier in China. which covers from engine, gearbox, cab, axle assemblies to main assembly accessories, electrical parts and other chassis parts like brake, clutch and steering parts.
A PROFESSIONAL CHINA TRUCK AND SPARE PARTS SUPPLIER
@Copyright DERUNA
