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The AZ992316001223 clutch pressure plate assembly is a genuine SINOTRUK HOWO component engineered to deliver precise clamping force and smooth engagement in heavy‑duty truck transmissions. As a critical element of the trusted Sinotruk howo parts family, this pressure plate ensures reliable torque transfer from the engine to the gearbox, even under the extreme loads of mining, construction, and long‑haul operations. Manufactured from high‑strength nodular cast iron with precision‑ground friction surfaces, the AZ992316001223 assembly features diaphragm springs engineered for consistent clamp load over millions of cycles. Its robust construction guarantees positive clutch release, reduced pedal effort, and long service life. Investing in this authentic component maintains driveline integrity and minimizes downtime.
Clutch Pressure Plate Assembly
Нажимной диск сцепления
Plato de presión de embrague
The AZ992316001223 pressure plate features a high‑grade nodular cast iron (GGG‑50) housing that provides exceptional strength and resistance to distortion under high thermal and mechanical loads. The diaphragm spring is manufactured from heat‑treated spring steel (50CrV4) and precisely heat‑treated to maintain stable clamp load over its entire service life. The pressure plate friction surface is precision ground to a flatness tolerance of 0.05 mm, ensuring even contact with the clutch disc and preventing hotspots.
Each AZ992316001223 assembly undergoes 100% dynamic balancing to minimize vibration and ensure smooth operation at engine speeds up to 3000 rpm. The cover is fitted with hardened steel drive straps that transmit torque without play, reducing wear on the clutch disc hub. The release fingers are induction‑hardened for durability against release bearing contact. This meticulous engineering guarantees reliable performance in the most demanding heavy‑duty applications.
The table below provides detailed technical data for the genuine SINOTRUK HOWO AZ992316001223 clutch pressure plate assembly. These specifications are essential for verifying compatibility and understanding its performance capabilities.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | AZ992316001223 | SINOTRUK HOWO Original Code |
| Product Name | Clutch Pressure Plate Assembly | Complete with cover and diaphragm |
| Cover Material | Nodular cast iron GGG‑50 | High strength, heat resistant |
| Diaphragm Spring Material | 50CrV4 spring steel | Heat‑treated for stability |
| Outer Diameter | 430 mm | Standard for Howo heavy‑duty |
| Inner Diameter (friction surface) | 240 mm | Matches clutch disc |
| Clamp Load (nominal) | 22,000 N | ±10% at installation height |
| Release Travel | 12 mm (minimum) | Ensures full disengagement |
| Number of Drive Straps | 3 (heavy‑duty) | Forged steel, heat treated |
| Balancing Grade | G6.3 (DIN ISO 1940) | Dynamic balance test |
| Maximum Engine Torque | 2,100 Nm | Matched to Howo engines |
| Applicable Transmissions | HW19710, HW19712, HW25716 | With appropriate clutch disc |
| Included Components | Pressure plate assembly, bolts | Check packaging |
The AZ992316001223 clutch pressure plate assembly is a direct OEM replacement for the push‑type clutches used in Howo heavy‑duty trucks, including the T7H, A7, and classic Howo‑7 series. It is designed to work with 430 mm clutch discs and is compatible with the HW19710, HW19712, and HW25716 transmissions. The assembly provides the necessary clamping force to transmit the high torque output of WD615, MC11, and MC13 engines without slippage, even under full load.
In chassis applications, the clutch pressure plate is a wear item that must withstand frequent engagements in stop‑and‑go traffic, as well as the shock loads of off‑highway operation. A worn pressure plate can cause clutch slip, overheating, and difficulty shifting. Using the genuine AZ992316001223 ensures that the clamp load remains within specification, providing smooth engagement and maximizing the life of the clutch disc and release bearing. It is also used in some vocational vehicles equipped with PTOs that rely on clutch engagement.
When replacing the pressure plate, always inspect the flywheel friction surface for cracks or heat damage. Replace the clutch disc and release bearing at the same time to ensure balanced performance. Torque the pressure plate bolts in a criss‑cross pattern to the specified value (typically 80‑90 Nm).
Correct installation of the AZ992316001223 pressure plate is critical to ensure proper clutch function and long service life. Follow these steps:
Clean the flywheel surface thoroughly, removing any oil or residue. Inspect the flywheel for cracks, heat discoloration, or warpage; machine or replace if necessary. Ensure the pilot bearing is in good condition.
Place the new clutch disc using an alignment tool. Position the pressure plate over the dowels and install the bolts hand‑tight. Tighten bolts gradually in a criss‑cross sequence to final torque. Remove the alignment tool.
Check the release bearing and fork for wear. Install the transmission and verify clutch pedal free play. Start the engine and test engagement for smoothness and absence of drag.
A worn pressure plate can lead to clutch slip, shudder, or failure. Common signs that replacement is needed include:
If any of these symptoms are observed, immediate replacement with a genuine AZ992316001223 is recommended. Continuing to operate with a worn pressure plate can damage the flywheel and clutch disc, leading to more expensive repairs.
Consistent clamp load ensures no power loss between engine and transmission, improving fuel efficiency and drivability.
High‑grade materials and precision manufacturing resist wear and heat, reducing the frequency of clutch replacements.
Balanced assembly and optimized diaphragm spring reduce vibration and provide progressive engagement for driver comfort.
To maximize the service life of your AZ992316001223 pressure plate, follow these best practices:
By adhering to these guidelines, you ensure that the AZ992316001223 pressure plate performs optimally throughout its intended service interval.
Aftermarket pressure plates often use inferior cast iron that can warp under heat, or diaphragm springs that lose tension quickly, leading to premature clutch failure. The genuine AZ992316001223 is manufactured to the exact specifications of the original equipment, using high‑grade nodular iron and precision‑heat‑treated springs. Each assembly is tested for clamp load, balance, and release characteristics, guaranteeing that it will perform exactly as the original part.
By choosing authentic SINOTRUK HOWO parts, you protect your investment and ensure your truck maintains its reliability and resale value. The Sinotruk howo parts catalog includes a full range of clutch and driveline components engineered for maximum durability. For fleet managers and owner‑operators who demand the best, the genuine AZ992316001223 is the only responsible choice.
The AZ992316001223 pressure plate is used across a wide range of Howo models: T7H, A7, and classic Howo‑7 series equipped with WD615, MC11, MC13, and D10 engines. It is designed for 430 mm clutches and fits flywheels with the standard bolt pattern (12 bolts on a 320 mm PCD). Always verify the transmission type and clutch disc spline count (typically 1 ¾” 10‑tooth).
Each AZ992316001223 is individually packaged in a heavy‑duty cardboard box with foam supports to prevent damage during shipping. The package includes the pressure plate assembly and a set of high‑strength mounting bolts. Installation instructions and torque specifications are printed on the box.
Production of the AZ992316001223 takes place in IATF 16949 certified facilities, using precision CNC machining and robotic assembly. Statistical process control ensures that dimensional variations are kept to a minimum, far exceeding the requirements of the original design. Every batch is accompanied by a material certificate and clamp load test report, guaranteeing that the pressure plates delivered are identical to those fitted on new Howo trucks at the factory.
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