Core Product Functions
AZ9731430130 straight pull rod assembly is a key steering transmission component for SINOTRUK HOWO T7H/T5G/A7/TX, as well as HOWO engineering/mining dumpers. It connects steering gear and steering knuckle, transmits steering torque to wheels, realizes synchronous steering, and ensures straight running and flexible turning. Bearing large axial/radial forces, it has excellent tensile, compressive and anti-fatigue performance for heavy load, long-distance, mining and construction environments. With precision matching structure, it features small transmission clearance, no jamming, and stable operation, improving driving safety and steering stability.
Compatibility & Interchangeability
①Applicable Vehicles: SINOTRUK HOWO T7H/T5G/A7/TX, and HOWO engineering/mining dumpers with the same steering transmission system.
②Adaptable System: Matches original steering system (steering gear/knuckle interface, mounting clip, locking structure). No modification needed; direct installation after disassembly.
③OE Reference Number: AZ9731430130
④Interchangeability: Follows original standards (length, rod diameter, thread, interface, mounting hole). Directly replaces original, avoids debugging/cuttingting/welding, shortens maintenance by 40%.
⑤Value-added Service: Our team verifies fit via vehicle model, chassis number and production year. Provides pre-installation check and post-installation steering test to avoid deviation and jamming.
Key Technical Parameters
|
Parameter Name |
Specification |
|
Applicable Vehicle Model |
SINOTRUK HOWO T7H/T5G/A7/TX series |
|
Rod Body Diameter |
50mm |
|
Overall Length |
1280mm (±3mm error) |
|
Thread Specification |
M36×2 |
|
Material Hardness |
HRC 38-42 |
|
Max Tensile Force |
≥120kN |
|
Operating Temperature Range |
-40℃ ~ +120℃ |
|
Transmission Clearance |
≤0.3mm |
|
Overall Weight |
8.6kg |
|
Connection Type |
Ball hinge + thread locking |




Materials & Craftsmanship
Core Materials
Rod body uses high-strength alloy steel (40CrNiMoA) for excellent tensile, compressive and anti-fatigue performance to bear steering forces. Ball hinge adopts GCr15 bearing steel, high precision, wear-resistant and impact-resistant for smooth rotation. Thread part uses quenched-tempered high-quality carbon steel, high hardness, wear-resistant and non-slip. Sealing uses high-temperature wear-resistant fluorine rubber ring to prevent dust, water and impurities.
Surface Treatment
Rod body undergoes overall quenching and tempering + electroplating hard chrome, improving surface hardness, wear resistance, corrosion resistance and rust resistance for harsh environments. Ball hinge surface is precision ground and polished to reduce friction. Thread part is galvanized and passivated to prevent oxidation and ensure firm locking.
Production Craftsmanship
Adopts precision forging + CNC machining + heat treatment integrated process, ensuring dense rod body structure without pores. Thread is precision rolled for high precision and strong tensile force. Ball hinge is precision fitted with strictly controlled clearance. Each assembly passes tensile, torque and rotation tests before delivery.
Quality Grade & Inspection
①Quality Grade: OE-equivalent, complying with HOWO standards and national steering transmission component requirements. Passed 2,000-hour anti-fatigue test and 100,000-time rotation test, stable in harsh environments.
②Inspection Items: Tensile force, torque, material hardness, thread precision, transmission clearance, surface treatment and sealing performance.
③Quality System: Factory passed IATF16949 and ISO9001, full-process quality control from raw materials to delivery.
④Batch Tracking: Each assembly has laser-engraved OE, batch number and production date. Records kept ≥3 years for full traceability.
Service Life & Performance
①Average Service Life: ≥4.5 years (450,000km), consistent with original, matching HOWO maintenance cycle, reducing replacement and costs.
②Performance Advantages: High-strength alloy steel rod resists tension/compression/fatigue; precision ball hinge ensures smooth rotation; electroplated hard chrome enhances corrosion/wear resistance; fluorine rubber seal prevents dust/water entry.
③Environment Adaptability: Stable in -40℃ ~ +120℃, adapting to alpine, high-temperature, humid and dusty environments. Strong vibration resistance for heavy-duty road jolts.
Fault Improvement & Replacement Value
Common Fault Optimization
Aiming at original faults (rod deformation, thread slipping, ball hinge jamming, oil leakage, excessive clearance, rust), optimized materials, structure and surface treatment. High-strength alloy steel, precision ball hinge and electroplated hard chrome fundamentally solve these faults, avoiding steering deviation and safety hazards.
Maintenance & Replacement Value
Simple structure, easy to disassemble and assemble for on-site replacement, shortening maintenance time. Fully compatible, no extra debugging, quick to use. Stable performance reduces vehicle downtime, high interchangeability cuts user costs.
Packaging & Marking
Packaging Configuration
Shockproof anti-collision packaging: inner EVA foam, middle plastic sleeve, outer reinforced carton. Assembly is fixed with positioning bracket to avoid bending/collision. Ball hinge and thread are protected by plastic caps. Matching accessories (locking nuts, gaskets) are independently packaged.
Marking Specifications
1. Outer Carton: Printed with OE, product name, vehicle model, quantity, batch number, weight, moisture-proof/shock-proof/fragile signs. Export has multilingual (English, Russian, Arabic) instructions.
2. Product Marking: Laser-engraved OE, rod diameter, thread specification and batch number on rod body, wear-resistant and clear.
3. Customization Service: Neutral packaging and LOGO customization available. Carton printing, language and size adjustable by market needs.
Supply Capacity
①Inventory Status: Sufficient AZ9731430130 stock, covering all applicable HOWO models, immediate spot delivery for urgent needs.
②MOQ: 3 pieces; bulk discounts (≥80 pieces); large customized orders' cycle adjustable by delivery time.
③Delivery Cycle: Spot orders shipped in 24-48hrs; bulk in 8-12 days. Foreign trade provides customs clearance and export documents, optional transport.
④Stability: Stable raw material supply and production lines, monthly output ≥6,000 pieces, no delivery delays.
Certification & After-sales Guarantee
①Certification Qualifications: IATF16949 and ISO9001 certified. Third-party test reports available for import/export.
②Quality Guarantee: 27-month warranty. Free return/replacement for non-human faults (deformation, slipping, jamming, oil leakage, etc.).
③Technical Support: 24-hour online team, providing installation guidance, fault diagnosis and maintenance training.
④Return Policy: We bear freight for quality faults; free replacement for transport-damaged products.
Frequently Asked Questions (FAQ)
Q1: Compatible with all HOWO T7H/T5G/A7/TX models?
A1: Yes, fully compatible. Provide model and production year for precise verification.
Q2: Installation key points?
A2: Clean interfaces; connect assembly and lock nuts by specified torque; check clearance and steering flexibility; test vehicle for no deviation
Q3: Foreign trade customization?
A3: Yes, neutral/LOGO packaging, multilingual manuals and full export documents.
Q4: Ball hinge jamming during warranty?
A4: Provide fault photos, batch number and vehicle model; free replacement + freight for quality issues.
Maintenance & Precautions
Installation Requirements
Disconnect power; check assembly integrity, ball hinge flexibility and thread/seal condition; clean interfaces; install and fasten nuts evenly; check clearance and test steering.
Regular Inspection
Check for deformation, rust and thread damage every 10,000km; inspect ball hinge for jamming/oil leakage, add lubricant if needed; re-tighten loose nuts; replace if clearance is excessive.
Storage Requirements
Store in dry, dust-free warehouse, away from corrosives and high temperature; place horizontally to avoid deformation; protect ball hinge/thread with plastic caps; 12-month unopened shelf life; apply anti-rust oil after opening.
Replacement Tips
Replace for steering deviation, jamming, deformation, slipping or excessive clearance. Replace locking nuts/gaskets together; test steering after replacement.
Hot Tags: az9731430130 straight pull rod assembly, China az9731430130 straight pull rod assembly manufacturers, suppliers, factory, Power Steering Gear Box, howo steering system, Steering Gear Box, HOWO Steering Straight Tie Rod Assembly, AZ9719470228 Steering Gear, AZ9719470228










