AZ9118340006 Brake Drum Howo Rear

AZ9118340006 rear brake drum is a key rear-axle braking part for SINOTRUK HOWO T7H/T5G/A7/TX, suitable for HOWO engineering trucks and mining dumpers. It works with brake shoes and friction linings to achieve vehicle deceleration and parking through friction braking-converting kinetic energy into heat during braking, which is critical for driving safety. It endures high friction and extreme temperature during operation, so it's built with strong high-temperature resistance, wear resistance and thermal fatigue. It fits heavy-load, long downhill, mining and construction site operations perfectly. Made by precision casting with uniform wall thickness, it dissipates heat well, won't deform under high temperature, ensures stable and even braking, and prevents vehicle deviation during braking.

①Applicable Vehicles: Fits rear axles of SINOTRUK HOWO T7H/T5G/A7/TX series, and HOWO engineering/mining dumpers equipped with the same rear brake system.

②Adaptable System: Fully matches the original rear brake components-brake shoes, friction linings, wheel hub, bearing and mounting bolts. No modification required; just disassemble the old one and install the new one directly.

③OE Reference Number: AZ9118340006

④Interchangeability: Complies with original factory standards, including inner/outer diameter, width, wall thickness, and mounting hole position/quantity. It can directly replace the original brake drum, no need for secondary machining or debugging, cutting maintenance time by 50%.

⑤Value-added Service: Our technical team verifies the fit according to your vehicle model, rear axle model and chassis number. We also provide pre-installation inspection tips and post-installation braking test guidance to avoid braking deviation.

Core Materials

Brake drum body uses high-quality gray cast iron (HT250), with excellent high-temperature resistance, wear resistance, thermal fatigue and heat conductivity to dissipate braking heat, avoiding deformation and cracking. Friction surface adds alloy elements (chromium, molybdenum) to improve hardness and wear resistance, reducing loss and extending service life. Mounting flange uses high-strength cast iron for rigidity and load-bearing, ensuring firm connection with wheel hub.

Surface Treatment

Outer surface is treated with high-temperature anti-rust paint, with strong adhesion, corrosion and rust resistance for harsh environments. Inner friction surface is precision machined and polished, ensuring uniform contact with friction linings, improving braking efficiency and avoiding deviation. Mounting flange surface is precision milled for flatness and tight fit with wheel hub.

Production Craftsmanship

Adopts precision sand casting + CNC machining + heat treatment integrated process, using resin sand mold to ensure dense structure without pores, shrinkage cavities or cracks. Precision casting controls uniform wall thickness for good heat dissipation. Inner friction surface is precision turned and ground for dimensional accuracy and smoothness. Each brake drum passes thermal fatigue and pressure tests before delivery.

①Quality Grade: OE-equivalent, complying with HOWO standards and national brake component requirements. Passed 3,000-hour thermal fatigue test and 50,000-time braking cycle test, stable without deformation/cracking under high temperature and heavy load.

②Inspection Items: Dimensional accuracy, material hardness, thermal fatigue, surface treatment, internal defect detection, flatness and mounting hole position.

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

④Batch Tracking: Each brake drum 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. For heavy-load/long-downhill conditions, ≥3 years (300,000km).

②Performance Advantages: HT250 body with alloy elements resists high temperature, wear and thermal fatigue; uniform wall thickness ensures heat dissipation and avoids brake fading; precision friction surface ensures stable, uniform braking; anti-rust paint enhances corrosion resistance.

③Environment Adaptability: Stable at ≤600℃, adapting to long downhill, alpine, high-temperature, humid and dusty environments. Strong impact resistance for heavy-duty road jolts.

Common Fault Optimization

Aiming at original faults (thermal deformation, cracking, excessive wear, uneven braking, brake fading, rust), optimized materials, structure and surface treatment. HT250 with alloy elements, uniform wall thickness and precision machining fundamentally solve these faults, avoiding braking 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 Configuration

Heavy-duty shockproof anti-collision packaging: inner EVA foam, middle steel frame protective cover, outer reinforced carton. Brake drum is fixed with positioning fixture to avoid collision/deformation. Inner friction surface is protected by plastic film. Matching accessories (bolts, washers) are independently packaged.

Marking Specifications

Outer Carton: Printed with OE, product name, vehicle/rear axle model, quantity, batch number, weight, moisture-proof/shock-proof/fragile signs. Export has multilingual (English, Russian, Arabic) instructions.

Product Marking: Laser-engraved OE, inner diameter, wall thickness and batch number on outer surface, wear-resistant and clear.

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

①Inventory Status: Sufficient AZ9118340006 stock, covering all applicable HOWO models and rear axles, immediate spot delivery for urgent needs.

②MOQ: 2 pieces; bulk discounts (≥50 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 ≥4,000 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 (deformation, cracking, excessive wear, 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 rear axles?

A1: Yes, fully compatible. Provide vehicle and rear axle model for precise verification.

Q2: Installation key points?

A2: Clean interfaces; install brake drum and fasten bolts by specified torque; check fit with brake shoes; test braking for no deviation.

Q3: Foreign trade customization?

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

Q4: Brake drum cracking during warranty?

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

Installation Requirements

Disconnect power and remove rear wheel; check brake drum integrity, friction surface and mounting hole; clean interfaces; install and fasten bolts evenly; adjust brake clearance, install wheel and test braking.

Regular Inspection

Check for deformation, cracking and rust every 15,000km; measure inner diameter and wear, replace if exceeding limit; clean friction surface; re-tighten loose bolts; check heat dissipation during long downhill.

Storage Requirements

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

Replacement Tips

Replace for braking deviation, fading, deformation, cracking or excessive wear. Replace brake shoes/friction linings together; adjust clearance and test braking after replacement.

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