AZ9719470228 Steering Gear

AZ9719470228 steering gear is a core control component of SINOTRUK HOWO heavy-duty vehicle steering system, mainly matched with HOWO T7H, T5G, A7, TX models and HOWO engineering/mining dumpers. It converts steering wheel rotation into steering tie rod linear motion, transmits torque, reduces steering effort, and ensures precise, stable steering. Bearing road impact and steering torque, it has excellent load-bearing capacity and stability for heavy load, long-distance, mining and construction environments. With precision transmission structure, it features small steering clearance, sensitive response and stable operation, improving driving safety and handling comfort.

①Applicable Vehicles: SINOTRUK HOWO T7H/T5G/A7/TX, as well as HOWO engineering/mining dumpers and special vehicles with the same steering system.

②Adaptable System: Matches original steering system (steering wheel, column, tie rod, power assistance, mounting bracket). No modification needed; direct installation after disassembly.

③OE Reference Number: AZ9719470228

④Interchangeability: Follows original standards (size, mounting hole, transmission ratio, interface, torque). Directly replaces original, avoids debugging, shortens maintenance by 45%.

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.

Core Materials

Shell uses high-strength nodular cast iron (QT600-3), with excellent rigidity, impact and wear resistance to bear road impact and steering torque. Steering screw and nut adopt high-carbon alloy steel (40Cr) with quenching and tempering treatment, high hardness and fatigue resistance. Steel ball uses GCr15 bearing steel, high precision and wear resistance for smooth transmission. Sealing part uses high-temperature and high-pressure nitrile rubber ring to ensure no oil leakage.

Surface Treatment

Shell outer surface is electrophoretic painted, with strong corrosion, rust and wear resistance for harsh environments. Steering screw and nut are precision ground and chrome-plated, reducing friction and improving transmission efficiency and service life. Mounting surface is precision machined for flatness and tight fit with vehicle frame.

Production Craftsmanship

Adopts precision casting + CNC machining + heat treatment integrated process, ensuring dense shell structure without pores. Steering screw, nut and steel ball are precision ground and sorted for transmission accuracy. Power assistance oil circuit is high-pressure flushed and deburred for unobstructed oil flow. Each steering gear passes strict assembly and performance tests before delivery.

①Quality Grade: OE-equivalent, complying with HOWO standards and national steering component requirements. Passed 2,500-hour durability test and 100,000-time steering cycle test, stable in harsh environments.

②Inspection Items: Steering precision, torque, pressure resistance (no oil leakage), steering clearance, surface treatment, material hardness and assembly accuracy.

③Quality System: Factory passed IATF16949 and ISO9001, full-process quality control from raw materials to delivery.

④Batch Tracking: Each steering gear has laser-engraved OE, batch number and production date. Records kept ≥3 years for full traceability.

①Average Service Life: ≥5 years (500,000km), consistent with original, matching HOWO maintenance cycle, reducing replacement and costs.

②Performance Advantages: Nodular cast iron shell resists impact and deformation; precision screw and nut ensure smooth steering; GCr15 steel balls improve wear resistance; nitrile rubber ring prevents oil leakage; electrophoretic painting enhances corrosion resistance.

③Environment Adaptability: Stable in -40℃ ~ +120℃, adapting to alpine, high-temperature, humid and dusty environments. Strong vibration resistance for heavy-duty road jolts.

Common Fault Optimization

Aiming at original faults (steering deviation, jamming, oil leakage, excessive clearance, abnormal noise), optimized materials, structure and assembly. High-precision components, high-pressure sealing rings and electrophoretic treatment solve these faults, avoiding steering-related safety hazards.

Maintenance & Replacement Value

Reasonable 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 Configuration

Heavy-duty shockproof packaging: inner EVA foam, middle steel frame protective cover, outer reinforced carton. Steering gear is fixed with positioning fixture to avoid collision. Oil port is sealed with plastic plug. Matching accessories (bolts, gaskets) are independently packaged.

Marking Specifications

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.

Product Marking: Laser-engraved OE, transmission ratio, working pressure and batch number on shell, wear-resistant and clear.

Customization Service: Neutral packaging and LOGO customization available. Carton printing, language and size adjustable by market needs.

①Inventory Status: Sufficient AZ9719470228 stock, covering all applicable HOWO models, immediate spot delivery for urgent needs.

②MOQ: 2 pieces; bulk discounts (≥60 pieces); large customized orders' cycle adjustable by delivery time.

③Delivery Cycle: Spot orders shipped in 24-48hrs; bulk in 10-15 days. Foreign trade provides customs clearance and export documents, optional transport.

④Stability: Stable raw material supply and production lines, monthly output ≥3,000 pieces, no delivery delays.

①Certification Qualifications: IATF16949 and ISO9001 certified. Third-party test reports available for import/export.

②Quality Guarantee: 30-month warranty. Free return/replacement for non-human faults (deviation, 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.

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 mounting surface and oil port; fasten steering gear with bolts; connect column and tie rod; add oil and exhaust; test steering for no deviation/jamming.

Q3: Foreign trade customization?

A3: Yes, neutral/LOGO packaging, multilingual manuals and full export documents.

Q4: Oil leakage during warranty?

A4: Provide fault photos, batch number and vehicle model; free replacement + freight for quality issues.

Installation Requirements

Disconnect power and steering oil circuit; check steering gear integrity, sealing ring and dimensions; clean mounting surface and oil port; install and fasten bolts evenly; connect column and tie rod, add oil and exhaust; test steering.

Regular Inspection

Check for oil leakage every 10,000km; inspect steering clearance and adjust if needed; re-tighten loose bolts; replace steering oil every 60,000km; clean oil filter regularly.

Storage Requirements

Store in dry, dust-free warehouse, away from corrosives and high temperature; place horizontally to avoid deformation; seal oil port; 12-month unopened shelf life; apply anti-rust oil after opening.

Replacement Tips

Replace for deviation, jamming, oil leakage, excessive clearance or abnormal noise. Replace sealing ring and bolts together; test steering after replacement.

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