The part is a heavy‑duty towing attachment designed for the HOWO A7 8X4 chassis. This 991-1491 semi-trailer truck pull hook is manufactured from high‑strength forged steel and features a robust “SK7” type design that provides secure and reliable coupling for semi‑trailers. Engineered to handle extreme pulling forces, The part ensures safe and efficient towing operations across diverse terrains. Its corrosion‑resistant finish and precision‑machined locking mechanism make The part a dependable choice for fleet operators.
At howo Parts, we supply the genuine 991-1491 semi-trailer truck pull hook that meets original equipment standards. Our 991-1491 semi-trailer truck pull hook includes the “SK7″type Hook, Hex bolt, and Self-locking screw – all precision‑engineered for a perfect fit and lasting durability. The part is designed for straightforward installation, allowing quick attachment to the vehicle frame. Regular inspection of The part is essential to maintain towing safety and prevent wear.
Proper towing equipment is critical for road safety, and The part plays a central role in connecting the tractor to the trailer. A well‑maintained 991-1491 semi-trailer truck pull hook ensures that the coupling remains secure, reducing the risk of accidental detachment. Trust our 991-1491 semi-trailer truck pull hook to provide reliable service for millions of kilometres, keeping your HOWO A7 8X4 ready for any towing task.
The “SK7″type Hook is the primary coupling component of The part. This forged steel hook features a safety latch and a wear‑resistant surface, ensuring a secure connection with the trailer’s ring. The “SK7” design is recognised for its strength and ease of use, making this 991-1491 semi-trailer truck pull hook a preferred choice for heavy‑duty applications. Its robust construction withstands the shock loads encountered during starting and braking.
The Hex bolt is a high‑strength fastener used to secure The part to the chassis bracket. Manufactured from alloy steel with a corrosion‑resistant coating, this hex bolt provides reliable clamping force and is easily torqued with standard tools. Proper tightening of the hex bolt is essential for the safe operation of The part.
The Self-locking screw is a prevailing‑torque nut that prevents loosening of the hex bolt due to vibration. This component is critical for maintaining the integrity of The part assembly. Its nylon patch or deformed thread design ensures that the fastener remains secure over long distances, enhancing the reliability of The part.
| Part NO. | Description |
|---|---|
| WG9000930047 | “SK7″type Hook |
| Q151B1655 | Hex bolt |
| 1.90004E+11 | Self-locking screw |
Our 991-1491 semi-trailer truck pull hook is forged from high‑grade steel and heat‑treated to achieve optimal hardness and toughness. This ensures that The part can withstand the highest tensile loads without deformation, providing long‑term reliability.
Every dimension of The part is precisely machined to match the original specifications. This guarantees a perfect fit with the vehicle bracket and the trailer coupling, making The part easy to install and operate.
We supply The part as a complete set, including the hook, hex bolts, and self‑locking nuts. This simplifies ordering and ensures you have all necessary components for a full replacement of The part.
We maintain a large inventory of 991-1491 semi-trailer truck pull hook assemblies and individual parts for fast worldwide delivery. Our technical team provides expert advice on installation and maintenance, ensuring your 991-1491 semi-trailer truck pull hook performs optimally.
The part is the primary connection point between the tractor and the semi‑trailer. Any failure in this 991-1491 semi-trailer truck pull hook can lead to catastrophic detachment, endangering lives and cargo. Regular inspection of The part for wear, cracks, or corrosion is essential for safe operation.
The part is coated with a durable anti‑corrosion finish that resists rust and pitting, even in salty or humid environments. This protective layer ensures that The part maintains its structural integrity and appearance over time, reducing the need for frequent replacements.
When installing The part, torque the hex bolts to the manufacturer’s specifications using a calibrated wrench. Apply a thread‑locking compound to the self‑locking screws for added security. Regularly re‑torque the fasteners of The part as part of routine maintenance.
We recommend inspecting The part every 25,000 km or before each major towing trip. Check for signs of deformation, cracking, or wear on the hook and the latch mechanism. Replace The part immediately if any damage is detected, to prevent failure during operation.
Our 991-1491 semi-trailer truck pull hook is specifically designed for the HOWO A7 8X4 chassis, matching the original mounting holes and bracket design. This ensures a direct bolt‑on replacement for The part, without the need for modifications.
Each 991-1491 semi-trailer truck pull hook undergoes 100% inspection, including dimensional verification and load testing. We stand behind our product with a comprehensive warranty, giving you confidence in the reliability of your 991-1491 semi-trailer truck pull hook.
We keep a large stock of 991-1491 semi-trailer truck pull hooks and individual components for immediate dispatch. Bulk orders for fleet maintenance are available with volume discounts. Contact us for custom requirements for your 991-1491 semi-trailer truck pull hook.
Investing in a genuine 991-1491 semi-trailer truck pull hook reduces the risk of towing accidents and minimises downtime. The durable construction of The part ensures lower total cost of ownership compared to inferior aftermarket alternatives.
Aftermarket pull hooks often use inferior materials that wear quickly and may fail under load. Our 991-1491 semi-trailer truck pull hook is built to the same stringent standards as the original equipment, ensuring safety and reliability. Trust The part from howo Parts for your HOWO A7 8X4.
A properly functioning 991-1491 semi-trailer truck pull hook ensures that the trailer remains securely attached, preventing sudden disengagement that could cause loss of control. Regular maintenance of The part contributes to overall road safety and driver confidence.
The part delivers consistent performance on highways, rough roads, and in adverse weather. Its robust design and corrosion‑resistant finish ensure that The part remains functional and reliable, regardless of the operating environment.
The part includes a spring‑loaded safety latch that prevents accidental release. This feature, combined with the self‑locking fasteners, provides multiple levels of security, making The part one of the safest towing attachments available.
Our 991-1491 semi-trailer truck pull hook is produced using advanced forging and heat‑treatment processes that optimise the grain structure for maximum strength and fatigue resistance. This ensures that The part can endure the repeated shock loads of heavy towing without failure.
The “SK7″type hook of The part features a generous opening and a smooth inner surface, making it easy to align and attach to the trailer ring. This user‑friendly design reduces the time and effort required for coupling, enhancing operational efficiency.
Many professional fleets rely on The part for its proven durability and safety record. By choosing our 991-1491 semi-trailer truck pull hook, you are joining thousands of operators who demand the best for their equipment.
Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.
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