Products Description
AZ9725520235 is an exclusive balance shaft housing for Sinotruk HOWO heavy-duty trucks. Its core function is to fix the balance shaft assembly, transmit and distribute longitudinal and transverse loads during vehicle operation, offset vibrations generated by engine operation, reduce stress damage to the frame and chassis, and ensure the stability and handling safety of the entire vehicle. Suitable for multiple scenarios such as long-distance transportation, heavy loading, mining operations, and engineering construction, it is crucial for extending the service life of the chassis and improving driving comfort.
Adaptability and Compatibility
1.Applicable Vehicles: Sinotruk HOWO A7, T7H, TH7 series heavy-duty trucks
2.Adaptable Engines: Compatible with mainstream HOWO engine models such as WD615, MC11, MC13
3.OE Reference Number: AZ9725520235 (international purchaser standard reference number)
4.Interchangeability: Can directly replace the same-model balance shaft housing of HOWO original factory without additional adaptation
5.Value-added Service: Supports VIN code accurate matching verification
Key Technical Parameters
Main Dimensions: Length 420±2mm, Width 280±2mm, Height 180±2mm (matching original factory installation dimensions)
Material Specification: QT450-10 ductile iron (main body), 40Cr alloy steel (mounting bushing)
Rated Load: ≤8000kg (longitudinal static load)
Operating Temperature: -30℃ to 120℃
Mounting Hole Specification: 8 M16×1.5 threaded mounting holes, hole spacing 150±1mm
Vibration Resistance: 1-8Hz low-frequency vibration, 50-200Hz high-frequency vibration
Materials and Processes
Core Materials: The main body is made of QT450-10 high-toughness ductile iron with tensile strength ≥450MPa and elongation ≥10%; the mounting bushing is 40Cr alloy steel subjected to quenching and tempering treatment
Surface Treatment: Overall phosphating rust-proof treatment, outer surface sprayed with high-temperature resistant rust-proof paint, salt spray corrosion resistance ≥500 hours
Production Process: Resin sand precision casting molding, CNC machining finishing, ultrasonic flaw detection for key parts
Production Line Capacity: Equipped with self-made mold capability, with a complete production line including casting, machining, and automatic testing, monthly output ≥3000 pieces
Quality Grade and Inspection
Quality Grade: High-quality aftermarket (high-quality replacement parts, comparable to OEM standards)
Inspection Items: Dimensional accuracy inspection, tensile strength test, hardness test (HB180-220), ultrasonic flaw detection, salt spray corrosion test, vibration fatigue test
Quality System: Certified by IATF16949 and ISO9001
Batch Tracking: Each batch of products is attached with a unique batch number, supporting full-process traceability
Service Life and Performance
Average Service Life: ≥6 years (or 400,000-500,000 kilometers)
Performance Improvement: Impact toughness increased by 25%, wear resistance 30% better than original factory standards, vibration buffering effect enhanced by 20%
Harsh Environment Adaptation: Adaptable to heavy working conditions such as desert high temperature, dusty mining areas, cold region low temperature, and coastal high salt spray, with excellent protection performance
Fault Improvement and Replacement Value
Common Fault Improvement: Solves problems such as easy cracking of the original balance shaft housing, excessive bushing wear, and severe corrosion
Maintenance Value: Reduces secondary damage such as chassis abnormal noise and frame deformation caused by balance shaft housing failures, and lowers subsequent maintenance costs by 50%
Packaging and Marking
Packaging Configuration: Plastic bag + EPE foam wrapping + five-layer corrugated carton packaging, lined with anti-rust paper and desiccant
Outer Carton Marking: Clearly marked with OEM number, applicable vehicle model, product quantity, production batch number, gross weight/net weight
Product Marking: Each product is attached with barcode and serial number label, with product model and production date laser engraved
Customization Service: Supports neutral packaging or customer-customized packaging requirements
Supply Capacity
Inventory Status: Hot-selling models are in stock for long-term supply
Minimum Order Quantity (MOQ): 5 pieces
Delivery Cycle: Spot orders are shipped within 3 working days, bulk orders are shipped within 7-15 working days
Supply Stability: With a monthly production capacity of over 3000 pieces, supporting long-term bulk supply, molds and core processes are independently controllable
Certification and After-sales Guarantee
Certification Qualifications: IATF16949 automotive industry quality certification, providing third-party test reports (material, strength, corrosion, etc.)
Quality Guarantee Policy: 18-month warranty, free replacement and return within 7 days for quality problems
Technical Support: 24-hour response to adaptation consultation, providing electronic installation drawings and torque parameters
Return and Exchange Policy: Under non-human damage conditions, direct return and exchange are allowed within the warranty period, and the freight is borne by the supplier
Scenario Cases
Africa Market: Adapted to local HOWO T7H mining trucks, running stably for 3 years without failure in high-temperature (45℃+) and dusty mining area environments
Southeast Asia Market: Serving Malaysian long-distance logistics HOWO A7 heavy-duty trucks, bearing heavy load (60 tons+) working conditions, service life exceeding 450,000 kilometers
Domestic Application: Widely used in HOWO TH7 engineering vehicles in mining areas of Shanxi and Inner Mongolia, solving the problem of easy cracking of the original shell, and extending the maintenance cycle by 1 time
FAQ
Q1: Does it support accurate matching by VIN code?
A1: Yes, providing the VIN code can verify the adaptability to ensure accurate supply.
Q2: What are the differences between different quality grades?
A2: This product is a high-quality aftermarket part. Its materials and processes are benchmarked against OEM standards, and its tensile strength and wear resistance are consistent with original factory parts, with higher cost performance.
Q3: Can samples be provided?
A3: Samples are available. The sample fee can be deducted from the bulk order, and the sample delivery cycle is 3 working days.
Q4: What payment methods are supported?
A4: Supports mainstream payment methods such as T/T, L/C, and Alipay. Payment terms can be negotiated for bulk orders.
Maintenance and Precautions
Installation Notes: Control the bolt torque at 80-100N·m during installation, and tighten in diagonal order in batches; clean the mounting surface and bushing before installation to avoid impurities affecting the fit.
Daily Inspection: Check every 50,000 kilometers for cracks and deformation of the shell, loose mounting bolts, and excessive bushing wear (replace if the gap >0.5mm).
Storage Requirements: Uninstalled products should be stored in a dry and ventilated environment, avoiding stacking and extrusion to prevent shell deformation; avoid contact with corrosive substances.
Replacement Reminder: When the vehicle has phenomena such as chassis abnormal noise, driving jitter, and tire irregular wear, it is recommended to check the status of the balance shaft housing and replace it in a timely manner if necessary.
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