199112410058 HOWO Steering Knuckle

 

 

The 199112410058 HOWO steering knuckle is a key part for front-axle steering. It connects the steering system, suspension and wheel hub. This lets drivers control wheel angles exactly. So steering stays steady and quick-whether on highways, city roads or construction sites.It's made with strong materials and precise machining. So it can handle heavy loads, road hits and tough conditions like mud, shaking and temperature changes. It keeps its solid structure over time. This makes HOWO trucks' steering reliable and safe.

 

 

①Applicable Vehicles: SINOTRUK HOWO A7, T7H, T5G, W5G, 371, 420 series heavy trucks; also suitable for modified heavy trucks, engineering transport vehicles and special vehicles based on HOWO chassis.

②Adaptable System: Fully matches the original steering system (steering arm, tie rod, hub bearing, brake caliper) and suspension system of HOWO models, no modification, cutting or debugging required during installation.

③OE Reference Number: 199112410058

④Interchangeability: Complies with original installation dimensions, hole spacing, bolt specifications and connection interfaces. It can be directly replaced with the original steering knuckle, no need to adjust steering trapezoid angle, bracket position or brake assembly, saving maintenance time and labor costs.

⑤Value-added Service: Confirm fit via vehicle VIN code, chassis model and axle type; provide pre-installation inspection and post-installation steering adjustment guidance.

 

 

• Rated Bearing Capacity: 12000-15000kg (single knuckle, for HOWO heavy-duty axle)
• Steering Angle Range: Left 38°~42°, Right 35°~38° (adjustable by chassis configuration)
• Working Temperature: -40℃~120℃ (suitable for extreme cold, high temperature and plateau areas)
• Installation Method: Bolted to axle beam, fixed with locking washer and high-strength bolts
• Overall Dimensions: 480mm×260mm×210mm (L×W×H)
• Overall Weight: 22.8kg (excluding bolts, washers and other accessories)
• Hole Diameter: Main mounting hole Φ50mm, steering arm connecting hole Φ22mm (matches original bolts)
• Matching Axle Type: SINOTRUK HOWO 7-ton/10-ton heavy-duty drive axle/steering axle
• Control Mode: Mechanical transmission (matches original steering system, no extra electronic components)

 

Core Materials

Knuckle body is made of 40Cr alloy structural steel, with high tensile strength, yield strength and impact toughness, capable of withstanding heavy load and complex road impact. Hub installation surface and bearing matching surface adopt 20CrMnTi alloy steel, wear-resistant and corrosion-resistant. Connecting bolts are 10.9-grade high-strength alloy bolts, not easy to loosen or break. Sealing ring is high-temperature and oil-resistant fluorine rubber, preventing dust, water and oil leakage, and extending the service life of internal parts.

Surface Treatment

Knuckle body surface is treated with overall shot blasting and electrophoresis, enhancing corrosion and rust resistance, suitable for rainy, snowy and dusty harsh working environments. Bearing matching surface is precision ground and chrome-plated, reducing friction coefficient, improving wear resistance and ensuring smooth hub rotation. Mounting surface and connecting hole are precision machined and coated with anti-seize agent, facilitating installation and disassembly, and preventing bolt jamming.

Production Craftsmanship

Knuckle body is formed by one-piece precision forging, eliminating internal defects such as shrinkage and porosity, ensuring uniform structure and high strength. All key surfaces and holes are processed by CNC machine tools, with high dimensional accuracy and good consistency. Assembly uses precision positioning tools to ensure coaxiality of mounting holes and matching accuracy of steering arms. Each steering knuckle undergoes strict dimensional inspection, hardness test, impact test and fatigue test before leaving the factory to ensure qualification.

Production Capacity

Equipped with advanced forging equipment, CNC machining centers, precision grinders and testing equipment, monthly output is ≥8,000 units. It can accept large-batch orders, support flexible stock, ensure timely delivery, and meet the needs of distributors, maintenance workshops and automobile manufacturers.

 

 

①Quality Grade: OE-matching, compliant with SINOTRUK factory standards and national heavy-duty auto parts standards. Passed 1000-hour fatigue test and extreme environment simulation test, performance is consistent with original parts, suitable for heavy load, long-distance and complex road operations.

②Inspection Items: Dimensional accuracy detection, hardness test (HRC38-42), impact toughness test, fatigue test, surface corrosion resistance test, mounting hole coaxiality detection and appearance inspection.

③Quality System: Certified by IATF16949 and ISO9001 quality management systems, implementing full-process quality control from raw material procurement, production processing to finished product delivery.

④Batch Tracking: Each steering knuckle is laser-marked with OE number, batch number and production date, clear and wear-resistant. Quality records are kept for more than 3 years, facilitating batch tracking and quick solution of quality problems.

 

 

①Average Service Life: ≥3 years (300,000km), matching the maintenance cycle of HOWO heavy trucks, reducing replacement frequency and maintenance costs.

②Performance Advantages: Integral forging structure, high strength and good impact resistance, no deformation or fracture; precision machining ensures steering accuracy and stable driving; excellent surface treatment, corrosion and rust resistance, long service life; smooth steering, no jitter or deviation, high driving safety.

③Harsh Environment Adaptability: Can work normally at -40℃ low temperature and 120℃ high temperature, not easy to crack or deform. Suitable for dusty, rainy and snowy conditions, preventing dust and water from entering, ensuring stable performance. It can also adapt to plateau low-pressure environment without performance degradation.

 

Common Fault Optimization

Aiming at common faults of original steering knuckles, such as deformation, fracture, matching surface wear, bolt loosening and oil leakage, this product adopts upgraded materials and precision processing technology, greatly reducing fault rate, avoiding steering deviation, jitter, wheel locking and other problems caused by steering knuckle failure, and ensuring normal vehicle operation.

 

Maintenance & Replacement Value

Direct on-site replacement, no modification or debugging required, shortening maintenance time by 45% compared with original parts replacement. Fully compatible with original system, no need to replace other accessories, low maintenance cost. Stable performance ensures vehicle driving safety, reduces downtime caused by steering knuckle failure, and improves vehicle operation efficiency. Accessories are interchangeable with original parts, facilitating later maintenance and replacement.

 

 

Packaging Configuration

Three-layer protective packaging: inner plastic film (dust-proof and moisture-proof), middle EVA shock pad (anti-collision and anti-scratch), outer corrugated carton (pressure-resistant and wear-resistant). Each steering knuckle is fixed with a special bracket in the carton to avoid collision and damage during transportation. Connecting holes and matching surfaces are protected by plastic plugs to prevent dust and scratches. Matching bolts, washers and other accessories are independently packaged and placed in the same carton.

 

Marking Specifications

Outer Carton: OE number, product name (HOWO Steering Knuckle), applicable vehicle models, quantity, batch number, net weight, gross weight, warning signs (anti-collision, moisture-proof), and multilingual installation instructions for export.

Product Marking: Laser-marked OE number (199112410058), rated bearing capacity, production date and batch number on the knuckle body, clear, wear-resistant and not easy to fall off.

Customization Service: Neutral packaging or LOGO customized packaging is available. Carton printing content, size and color can be adjusted according to different market and customer needs.

 

 

①Inventory Status: Sufficient stock for regular specifications (matching mainstream HOWO models), supporting immediate spot delivery, no need to wait for production.

②MOQ: 3 units; tiered price discounts for bulk orders (≥50 units); customized production is supported according to customer's special size and material requirements, and production cycle can be adjusted flexibly.

③Delivery Cycle: Spot orders are shipped within 24-48 hours; bulk orders are shipped within 6-9 days; foreign trade orders provide professional customs clearance services and complete export documents (commercial invoice, packing list, certificate of origin, etc.).

④Supply Stability: Equipped with independent production lines and stable raw material supply chains, monthly output is stably ≥8,000 units, avoiding delivery delays due to insufficient production capacity, and ensuring stable supply for long-term cooperative customers.

 

 

Q1: Is it compatible with all HOWO series heavy trucks?

A1: Fully compatible with HOWO A7/T7H/T5G/W5G/371/420 series heavy trucks. For modified HOWO chassis or special models, please provide vehicle VIN code and axle type for confirmation.

 

Q2: What are the installation precautions?

A2: Before installation, check whether the steering knuckle is damaged or deformed, and clean the mounting surface and connecting hole; use matching 10.9-grade high-strength bolts, and fasten them evenly according to the specified torque; after installation, check steering flexibility and adjust steering angle if necessary.

 

Q3: Can foreign trade packaging and documents be customized?

A3: Yes, neutral packaging or LOGO customized packaging is available; multilingual (English, Russian, Spanish, etc.) installation instructions and complete export customs clearance documents can be provided according to customer needs.

 

Q4: What to do if the steering knuckle is deformed or fractured during the warranty period?

A4: Take photos of the fault and provide product batch number and purchase certificate, our after-sales team will confirm the fault. If it is a quality problem, a new product will be sent immediately, and the round-trip freight will be borne by us.

 

Installation Requirements

Before installation, carefully check the steering knuckle for cracks, deformation and surface damage; clean the mounting surface, connecting hole and hub matching surface to remove oil stains, rust and dust; align the mounting hole with the axle beam, use original or matching high-strength bolts to fasten evenly, and install locking washer to prevent bolt loosening; after installation, connect the steering arm and tie rod, adjust the steering angle to ensure flexible and smooth steering, and no jitter or deviation during idling.

 

Regular Inspection

Check the tightness of connecting bolts every 10,000km; check the steering knuckle for deformation, cracks and oil leakage every 20,000km; check the wear of hub matching surface and bearing every 50,000km; clean the steering knuckle surface every 30,000km, and touch up paint if there is rust to enhance corrosion resistance.

 

Storage Requirements

Store in a dry, ventilated and clean warehouse, avoid moisture, dust and direct sunlight; place horizontally on the shelf, do not stack heavily to prevent deformation; seal oil ports and connecting holes with plastic plugs to prevent dust and moisture from entering; shelf life is 1.5 years, before installation after unpacking, clean the surface and apply a small amount of lubricating oil to protect the matching surface.

 

Replacement Tips

When the vehicle has steering deviation, jitter, difficult steering, or the steering knuckle is found to be deformed, cracked, or the matching surface is severely worn, replace the steering knuckle in time. When replacing, it is recommended to replace connecting bolts and sealing rings at the same time; after replacement, debug the steering angle and check steering flexibility to ensure normal operation of the steering system.

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