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The driven plate assembly is a core component of the clutch system, responsible for transmitting engine torque to the gearbox while dampening torsional vibrations. The genuine SINOTRUK HOWO WG9921160810 Driven Plate Assembly (Ch430‑21 / Km1790A) is an OEM‑grade component manufactured to exacting tolerances for a perfect fit and lasting durability. As a critical element of the trusted Sinotruk howo parts family, this driven plate guarantees smooth engagement, reliable torque transfer, and long‑term reliability. Engineered for HOWO heavy‑duty trucks, this assembly withstands extreme loads, heat, and high‑mileage operation in mining, construction, and long‑haul applications. Its robust construction ensures your drivetrain stays protected and performs optimally under the most demanding conditions.
Driven Plate Assembly
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This driven plate (OEM WG9921160810) features a premium organic friction material bonded to high‑strength steel facings. This material is formulated to provide consistent friction coefficient across a wide temperature range, ensuring smooth engagement and preventing clutch chatter. Its excellent heat resistance minimizes fading during repeated heavy starts, making it ideal for stop‑and‑go traffic and off‑road gradients.
The hub of the assembly is precision‑splined and heat‑treated for maximum torsional strength. Integrated coil springs effectively absorb driveline shocks and reduce noise, vibration, and harshness (NVH). This design protects the gearbox and differential from impact loads, extending the life of the entire drivetrain.
Every driven plate is dynamically balanced to stringent tolerances, eliminating vibration at high rotational speeds. The riveted construction ensures that the friction facings remain securely attached even under extreme centrifugal forces. This attention to detail guarantees smooth operation and long service life, matching the original equipment fitted at the factory.
The table below provides detailed technical specifications for the genuine SINOTRUK HOWO WG9921160810 Driven Plate Assembly (Ch430‑21 / Km1790A). This data is essential for verifying compatibility and performance characteristics.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | WG9921160810 | SINOTRUK HOWO Original Code |
| Product Name | Driven Plate Assembly (Ch430‑21 / Km1790A) | Clutch disc for heavy‑duty transmissions |
| Friction Material | Non‑asbestos organic (NAO) with high‑temperature resin | Excellent wear resistance and stable friction |
| Spline Count | 21 | SAE standard for HOWO gearboxes |
| Spline Major Diameter | 38 mm (approx.) | Precision‑machined |
| Outer Diameter | 430 mm | Matches Ch430 clutch cover |
| Facing Thickness | 4.0 mm (nominal) | Riveted and bonded |
| Damper Springs | 6 coil springs | Torsional vibration damping |
| Maximum Torque Capacity | 2100 Nm | Designed for heavy‑duty diesel engines |
| Balancing Specification | Dynamic balance ≤ 50 g·cm | Vibration‑free operation |
| Operating Temperature Range | -40°C to +260°C | Sustains extreme clutch heat |
| Weight | 7.8 kg (approx.) | Robust yet manageable |
| Compatible Models | HOWO 6×4, 8×4, Tractor, Dump (with Ch430 clutch) | Check transmission spline count |
Replacing the driven plate requires careful attention to alignment and cleanliness. Always replace the clutch cover and release bearing simultaneously for optimal performance. Begin by removing the transmission and clutch cover. Support the driven plate (OEM WG9921160810) and inspect the flywheel surface for scoring or heat cracks. If necessary, have the flywheel resurfaced.
Use a clutch alignment tool to center the plate on the flywheel. Install the clutch cover and torque the bolts in a star pattern to the manufacturer’s specification (typically 80‑100 Nm). After installation, ensure the transmission input shaft slides freely into the splined hub. This assembly is designed to fit HOWO trucks with Ch430 clutch systems and 21‑spline input shafts. Always verify spline count and diameter by comparing with the original part.
Before installation, check that the damper springs move freely and that there is no grease or oil on the friction facings. A light coating of high‑temperature spline grease on the input shaft will prevent fretting corrosion and ensure smooth release.
The precisely matched friction material and damper springs of this driven plate provide progressive clutch take‑up, reducing driveline shock and improving driver comfort, especially under heavy loads.
By effectively dampening torsional vibrations, the genuine assembly protects the gearbox, driveshaft, and differential from premature wear, reducing maintenance costs over the vehicle’s lifetime.
The high‑grade friction material maintains stable friction even at elevated temperatures, preventing clutch fade during repeated engagements in demanding off‑road or urban conditions.
Investing in the genuine OEM part reduces downtime and prevents costly repairs caused by clutch failure. It is a small price for the reliability that keeps your HOWO on the road.
Over time, the driven plate friction material wears and the damper springs can fatigue. Common indicators that the plate needs replacement include clutch slippage under load, difficulty shifting gears, clutch chatter or vibration during engagement, and a burning smell. If the clutch pedal feels spongy or the free play is excessive, inspect the driven plate thickness through the inspection window.
Ignoring worn clutch components can lead to scoring of the flywheel and pressure plate, increasing repair costs. Replacing with a genuine SINOTRUK HOWO WG9921160810 restores original performance and ensures safe, reliable operation. As a rule, replace the driven plate whenever the transmission is removed for clutch service.
To extend the life of your driven plate, practice good driving habits: avoid riding the clutch, use the handbrake on inclines, and do not overload the vehicle. Regularly check the clutch actuation system for proper adjustment and fluid level (if hydraulic). Inspect for oil leaks from the engine rear main seal or transmission input shaft seal, as oil contamination will rapidly destroy friction facings.
During routine maintenance, listen for any unusual noises when depressing the clutch. If you detect a change in pedal feel or clutch operation, have the system inspected by a qualified technician. Following these practices will help your clutch provide hundreds of thousands of kilometers of reliable service.
Generic aftermarket driven plates often use inferior friction materials that wear quickly, have incorrect spline dimensions, and lack proper balancing. This can lead to clutch chatter, premature failure, and even damage to the transmission input shaft. The genuine SINOTRUK HOWO WG9921160810 driven plate is engineered to the exact specifications of your truck’s clutch system, ensuring correct spline fit, proper damping characteristics, and reliable torque capacity. It is manufactured under strict quality controls using the same materials and processes as the original part.
By choosing the authentic WG9921160810, you protect your investment, maintain drivability, and ensure reliable operation in the harshest environments. For fleet managers and owner‑operators who demand the best, the genuine OEM part is the only responsible choice for clutch repairs.
The WG9921160810 Driven Plate Assembly (Ch430‑21 / Km1790A) is a vital part of SINOTRUK’s comprehensive range of genuine clutch components. Whether your HOWO operates in demanding construction sites, long‑distance haulage, or severe off‑road conditions, this driven plate delivers dependable torque transmission and smooth engagement. Its robust construction resists wear and heat, 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 assembly ensures that every clutch replacement meets the highest standards. Customers will appreciate the smooth operation, long service life, and reliable performance. With the genuine part, you are not just replacing a clutch disc—you are safeguarding the entire drivetrain.
Remember, a properly maintained clutch system is essential for vehicle productivity. Using genuine SINOTRUK HOWO parts like the WG9921160810 is an investment in reliability, performance, and operational efficiency. Trust the original, trust the genuine component.
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