- ADDRESS：Wanda Plaza, Jinan, Shandong, China
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
Maintaining the integrity of your truck’s suspension is paramount for safety and performance. The genuine MR210731 Bushing Rr Susp Lwr Arm is a critical OEM component designed to absorb shocks, reduce vibration, and ensure precise alignment of the rear suspension lower arm on SANY heavy-duty trucks. As a vital part among SANY parts, the MR210731 bushing guarantees a perfect fit, restores original handling characteristics, and significantly extends the service life of the entire suspension system. Manufactured from premium, durable materials, it withstands extreme loads, constant stress, and harsh environmental conditions typical in construction, mining, and logistics operations.
Bushing Rr Susp Lwr Arm
Втулка задней подвески нижнего рычага
Buje del Brazo Inferior de la Suspensión Trasera
The primary function of the MR210731 bushing is to provide a flexible, yet robust connection between the rear suspension lower arm and the truck’s frame or axle. It acts as a pivotal damping element, absorbing and dissipating energy from road impacts, potholes, and uneven loads. This directly translates to reduced noise, harshness, and vibration (NVH) transmitted to the chassis and cabin. The specific design of the MR210731 component ensures it controls the precise arc of movement for the lower control arm, maintaining correct wheel alignment and tire contact with the ground. A failed or worn bushing, unlike a genuine MR210731, can lead to vague steering, irregular tire wear, and compromised vehicle stability.
Engineered for durability, the MR210731 features a multi-layer construction. Typically, it consists of a rugged outer metal sleeve for secure press-fitting into the arm, a middle layer of high-performance rubber or polyurethane compound for elasticity, and sometimes an inner metal collar. This compound is specifically formulated to resist oil, grease, ozone, and temperature extremes from -40°C to +120°C. The geometry of the MR210731 is precisely calibrated to handle both radial and axial forces encountered during cornering, braking, and load shifts. This sophisticated design makes the Bushing Rr Susp Lwr Arm a small but vital part for overall drivability and safety.
The table below details the essential technical parameters for the SANY MR210731 bushing. These specifications are crucial for engineers, fleet managers, and maintenance technicians to confirm the component’s compatibility with specific truck models and to understand its performance capabilities under operational stress.
| Parameter | Specification | Details / Significance |
|---|---|---|
| OEM Part Number | MR210731 | Official SANY Identification Code |
| Product Name | Bushing Rr Susp Lwr Arm | Rear Suspension Lower Arm Bushing |
| Primary Material | Synthetic Rubber / Polyurethane | Optimized for Flexibility & Durability |
| Outer Sleeve Material | Steel (Galvanized or Coated) | Corrosion-Resistant, Provides Structural Grip |
| Inner Diameter (ID) | Model-Specific (e.g., 30mm) | Determines Bolt/Stud Fit |
| Outer Diameter (OD) | Model-Specific (e.g., 50mm) | Determines Housing/Arm Bore Fit |
| Width/Height | Model-Specific (e.g., 40mm) | Overall Dimension for Space Constraints |
| Load Capacity | High (Rated for GVW of Truck) | Withstands Multi-Directional Forces |
| Operating Temp. Range | -40°C to +120°C | Suitable for All Climates |
| Compatible SANY Models | Various SY, SYL, SYM Series Trucks | Consult Model Fit Guide for MR210731 |
Replacing the MR210731 bushing requires proper tools and technical knowledge. The vehicle must be safely supported, and the rear suspension lower arm needs to be unloaded and possibly removed. The old, worn bushing is typically pressed out using a hydraulic press or specialized bushing removal tool. The new Bushing Rr Susp Lwr Arm component must be pressed in squarely and evenly to avoid damaging the rubber element or the metal sleeve. It is crucial to use the correct installation torque on the through-bolt to pre-load the bushing as per manufacturer specifications.
The MR210731 is designed for a direct, press-fit replacement in its designated position on compatible SANY truck models. Always verify the part number MR210731 against your truck’s service manual or VIN-based parts catalog. Using the exact OEM bushing like Bushing Rr Susp Lwr Arm ensures the suspension geometry and compliance remain unchanged. After installing the Bushing Rr Susp Lwr Arm, a wheel alignment check is highly recommended, as replacing suspension bushings can alter toe and camber settings. This step ensures optimal tire wear and handling post-installation.
When pressing in the new MR210731 bushing, applying a soapy water solution (never petroleum grease) to the outer metal sleeve can ease installation without compromising the bond or damaging the rubber compound.
Installing a genuine MR210731 bushing returns your SANY truck’s rear suspension to its designed performance envelope. It eliminates sloppy handling, improves steering response, and ensures predictable behavior under load and during evasive maneuvers. The precise damping characteristics of the component are essential for maintaining vehicle stability and driver confidence, especially when the truck is fully laden.
A worn suspension bushing like the MR210731 can cause a cascade of damage. It leads to accelerated wear of the lower arm ball joint, uneven tire wear, and stress on shock absorbers. By proactively replacing it with a high-quality OEM MR210731 part, you prevent these secondary, more expensive failures. This proactive maintenance is far more economical than repairing multiple components later.
The genuine MR210731 bushing is manufactured to SANY’s stringent quality standards, using materials tested for longevity under real-world conditions. This results in a service life that matches or exceeds the original component. Furthermore, as an authentic SANY part, the Bushing Rr Susp Lwr Arm is covered by the manufacturer’s warranty, providing reliability and support that generic parts cannot offer.
Recognizing the signs of a worn MR210731 bushing is key to preventative maintenance. Common symptoms include clunking or knocking noises from the rear suspension when going over bumps, excessive vibration felt in the chassis or steering wheel, and a general feeling of instability or “looseness” in the rear end, especially during lane changes. Visually, a cracked, torn, or misshapen rubber portion, or visible metal-to-metal contact indicates immediate need for replacement. Delaying the replacement of a faulty bushing with a genuine MR210731 unit puts undue stress on the entire suspension assembly.
The MR210731 is the engineered solution because it replicates the exact physical and dynamic properties of the original part. Its material composition and dimensions are calibrated to work in harmony with the specific weight, spring rates, and damping characteristics of your SANY truck model. Installing an inferior, non-OEM bushing can alter the suspension’s behavior, potentially making the vehicle less safe and causing other components to wear abnormally. The Bushing Rr Susp Lwr Arm ensures system integrity is maintained.
To ensure the longevity of your MR210731 suspension bushing, incorporate it into your routine vehicle inspection schedule. During regular service intervals, visually inspect the bushing for any signs of cracking, splitting, or extrusion of the rubber material. Check for any excessive play by using a pry bar (carefully) to see if there is movement between the inner and outer metal sleeves beyond normal flex. Listen for unusual sounds from the rear suspension during test drives.
Keep the area around the MR210731 component clean from heavy accumulations of mud and debris, which can trap moisture and accelerate corrosion of the metal sleeves. Avoid exposing the rubber to prolonged contact with petroleum-based solvents or fluids, as they can degrade the compound. Following the manufacturer’s recommended service intervals for suspension inspection is the best way to catch wear on the Bushing Rr Susp Lwr Arm bushing early, allowing for planned replacement rather than an emergency repair.
The suspension system is a critical safety network in any heavy-duty truck. Compromising on the quality of any component, especially a load-bearing bushing like the MR210731, can have serious consequences. Genuine OEM parts are developed alongside the vehicle, undergoing thousands of hours of testing to validate their performance, durability, and safety margins. The Bushing Rr Susp Lwr Arm is the result of this engineering process.
Choosing the authentic MR210731 Bushing Rr Susp Lwr Arm is not just about replacing a part; it’s about preserving the designed safety, handling, and longevity of your SANY investment. It guarantees material integrity, dimensional accuracy, and performance consistency. For fleet managers focused on total cost of ownership and for operators who prioritize safety, specifying the Bushing Rr Susp Lwr Arm for replacement is the only responsible choice.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.
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
