- ADDRESS:Jinan City, Shandong Province
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com


The 513-1000800 Sealing Bag is a high-quality protective component designed to shield critical chassis joints and pivot points from contamination, moisture, and abrasive debris in SINOTRUK Howo heavy-duty trucks. As a trusted supplier of genuine Sinotruk howo parts, we offer this sealing bag as a direct OEM replacement, manufactured to the exacting standards of the original equipment. The 513-1000800 sealing bag features a durable, flexible elastomer construction with reinforced sealing lips, a precision-engineered fit for specific chassis components, and excellent resistance to oils, greases, and extreme temperatures, ensuring long-lasting protection and reliable performance in the most demanding operating environments.
This 513-1000800 sealing bag plays a crucial role in preserving the integrity of suspension ball joints, steering linkages, or axle pivot points by preventing the ingress of dirt and water while retaining internal lubrication. Its robust design withstands repeated flexing and compression, maintaining a positive seal even under high-pressure washing and severe off-road conditions, thereby extending the service life of the protected components.
OEM direct replacement • Oil and grease resistant • Flexible elastomer • Reinforced sealing lips
The 513-1000800 is a flexible boot-style sealing bag designed for use on various chassis pivot points and ball joints in SINOTRUK Howo trucks. It replaces the original equipment sealing bag, offering identical dimensions, mounting characteristics, and sealing performance.
The sealing bag is manufactured from a specially formulated synthetic rubber compound that exhibits excellent elasticity, tear resistance, and memory. Its bellows-like structure allows it to accommodate angular and linear movement of the joint while maintaining a constant sealing pressure against the mating surfaces. The internal sealing lips are precision-molded to ensure a tight fit around the stud or shaft, effectively excluding contaminants and retaining grease.
The material is resistant to a wide range of automotive fluids, including engine oil, gear oil, grease, brake fluid, and road salts, ensuring long-term durability. The 513-1000800 is engineered to perform reliably in temperatures ranging from -40°C to +100°C, making it suitable for use in all climatic conditions.
This sealing bag is a vital component for protecting expensive chassis components from premature wear and failure, contributing to reduced maintenance costs and increased vehicle uptime.
The 513-1000800 sealing bag is specifically designed for use on SINOTRUK Howo heavy-duty trucks, including popular models such as Howo A7, T7H, and other series that employ this sealing bag on suspension ball joints, steering tie-rod ends, or axle pivot connections. It is a direct replacement for the OEM part, ensuring identical fit and function.
This sealing bag is suitable for a wide range of applications, including long-haul transport, construction, mining, and off-road operations, where reliable protection of critical joints is essential for safety and durability. It is also compatible with many aftermarket suspension and steering components that use the same boot dimensions.
The 513-1000800 is typically installed during suspension or steering system servicing, but can also be replaced as a standalone maintenance item when the original boot shows signs of cracking, splitting, or hardening.
Always verify the joint diameter and length requirements before ordering to ensure compatibility. When replacing, inspect the joint itself for play or damage, and replace if necessary.
Installing the 513-1000800 sealing bag requires basic hand tools and care to avoid damaging the new boot. Begin by safely lifting and supporting the vehicle, and remove the wheel or access panel to reach the joint.
Clean the joint stud and housing thoroughly to remove old grease, dirt, and debris. If the joint has a grease fitting, apply fresh grease to purge any contaminants from the old boot.
Slide the new 513-1000800 sealing bag over the stud, ensuring the small end seats firmly against the stud shoulder and the large end covers the housing lip. Use a suitable installation tool or a soft-faced mallet to gently tap the boot into position, taking care not to puncture or distort the rubber.
Secure the boot using the original clamp or a new tie-wrap (if specified), ensuring the clamp is tight enough to prevent leakage but not so tight as to cut the rubber. After installation, cycle the joint through its full range of motion to verify that the boot does not bind or contact other components.
Regular maintenance includes periodic visual inspection of the sealing bag for cracks, tears, or hardening. If any damage is detected, replace the 513-1000800 immediately to prevent contamination of the joint. Also, check the clamp tightness during routine service intervals.
The 513-1000800 sealing bag is manufactured in an ISO 9001-certified facility, adhering to stringent quality control standards. Every batch of rubber compound is tested for hardness, tensile strength, and elongation to ensure consistent material properties.
Each sealing bag undergoes 100% dimensional inspection, with critical diameters and lip profiles verified using precision gauges. Samples are also subjected to flex testing, ozone aging, and fluid immersion tests to simulate real-world operating conditions and confirm long-term durability.
Our commitment to quality ensures that the 513-1000800 delivers reliable, long-lasting protection, reducing the risk of premature joint failure, steering play, and suspension noise. With a comprehensive warranty, this sealing bag offers peace of mind for fleet operators and owner-operators alike.
Choose genuine quality for your chassis protection – choose the 513-1000800.
The 513-1000800 sealing bag is a simple yet essential component for preserving the integrity and longevity of your SINOTRUK Howo truck’s chassis joints. Its high-quality elastomer construction, precision sealing lips, and robust design ensure that critical suspension and steering components remain free from contaminants and properly lubricated.
By choosing this OEM-grade sealing bag, you avoid the risks associated with inferior aftermarket boots, such as premature cracking, poor fitment, and inadequate sealing. The 513-1000800 is engineered to deliver dependable protection, reducing wear, noise, and play in the steering and suspension systems.
Fleet operators will benefit from reduced component replacement frequency, improved vehicle handling, and lower maintenance costs. Owner-operators will gain confidence in their truck’s reliability, knowing that critical chassis parts are properly sealed and protected.
Invest in the 513-1000800 Sealing Bag and experience the difference that a genuine SINOTRUK Howo part makes. Its proven reliability and engineering excellence make it the smart choice for professionals who demand the best for their vehicles.
Order your 513-1000800 today and ensure your truck’s chassis joints remain protected for miles to come.