SINOTRUK HOWO TX 400HP Dump Truck Wear Parts List | 6 Systems Failure Prevention & Maintenance Guide

SINOTRUK HOWO TX 400HP Dump Truck Wear Parts List | 6 Systems Failure Prevention & Maintenance Guide

Core Keywords: SINOTRUK HOWO TX 400HP dump truck wear parts, HOWO TX 6×4 dump truck accessories, ZZ3257V434GF1 full vehicle wear parts, Weichai WP10H dump truck maintenance parts

Long-tail Keywords: HOWO TX dump truck chassis wear parts, China 6 emission HOWO dump truck DPF parts, HOWO TX cab common fault parts, construction dump truck high-frequency wear parts

Widely used in urban construction muck transportation, mining operations, and infrastructure projects, the SINOTRUK HOWO TX 400HP 6×4 6.3m dump truck (Model: ZZ3257V434GF1) is equipped with a premium powertrain combination of the Weichai WP10H400E62 engine and HW19712CL 12-speed manual transmission. Featuring reliable performance and strong load capacity, it has become the preferred workhorse for engineering fleets and logistics enterprises.

Compared with standard highway trucks, engineering dump trucks operate under harsh working conditions with frequent start-stop cycles, heavy-load bumping, flying stone impacts, and severe dust erosion. These extreme environments accelerate component wear and tear, easily causing sudden breakdowns, vehicle downtime, and soaring maintenance costs. For fleet managers and truck owners, accurately identifying high-frequency wear parts across six major systems of the HOWO TX 400HP dump truck, preparing spare parts in advance, and implementing regular inspections are critical to reducing downtime losses, cutting operational costs, and improving transportation efficiency.

As a professional heavy-duty truck parts supplier, Shaanxi Jufeng Delong Trading Co., Ltd. has years of experience in commercial vehicle parts services, supplying full-range accessories for SINOTRUK HOWO, SHACMAN, Dongfeng, FAW Jiefang, Foton and other mainstream heavy truck brands. Based on massive maintenance cases, front-end user feedback and operational wear data, we have compiled a comprehensive wear parts list covering the exterior, cab, chassis, body, engine, and electrical control systems of the HOWO TX 400HP dump truck, paired with targeted maintenance advice to ensure long-term and stable vehicle operation.

1. Exterior System Wear Parts: Anti-collision & Anti-stone Protection

Construction sites feature narrow roads, scattered building materials and splashing gravel, causing continuous damage to truck exterior parts. Damaged components not only affect vehicle appearance but also obstruct visibility during night and rainy operations, bringing potential safety hazards. The exterior system ranks among the most frequently worn parts in daily operation.

Core Wear Parts List:

• Split Headlight Assembly: Mounted at a low position, the headlight is vulnerable to flying stone impacts and low-speed collisions. The built-in halogen bulbs for high/low beams, fog lights and turn signals wear out quickly under harsh conditions and require frequent replacement.

• Full Steel Bumper & Accessories: Including anti-slip steps, anti-drill beams and towing hooks. Frequent site scratches and towing operations easily cause deformation, paint peeling and fracture, often requiring overall replacement in severe cases.

• Main & Blind Spot Mirror Assembly: Dump trucks frequently turn and reverse on narrow construction sites, leading to frequent mirror shell scratches and blurred lens wear, which directly endanger driving vision safety.

• Vehicle Paint & Protective Coating: High dust and sand friction easily cause scratches and paint peeling on new trucks. Timely paint repair is essential to prevent sheet metal corrosion.

• Rear Saddle Base: Long-term heavy-load traction leads to excessive clearance and strong driving impact. Severe wear causes loose connection and requires regular inspection and replacement.

2. Cab System Wear Parts: Eliminate Common Abnormal Noises & Aging Faults

The cab is the core working area for drivers, and component stability directly affects operating experience and driving safety. The HOWO TX series has inherent operational weaknesses; long-term bumping and vibration accelerate the aging of cab parts, resulting in frequent abnormal noises and sealing failures.

Core Wear Parts List:

• Airbag Seat Assembly: Long-term bumping and frequent height/angle adjustment cause aging and failure of airbag bladders and mechanical adjustment mechanisms, leading to seat collapse and adjustment jamming.

• Door Lock Mechanism & Sealing Strip: Bumpy heavy-load conditions accelerate lock cylinder wear. Aging and hardened sealing strips cause dust ingress, air leakage and water leakage, greatly reducing dustproof and sound insulation performance.

• Cab Tilt Shaft & Bushing: A classic vulnerable part of the HOWO TX series. Vibration wear causes continuous "clunking" abnormal noises during driving and deteriorates driving experience.

• Grease Groove Tilt Shaft Bolt: Regular greasing maintenance is required. Insufficient lubrication aggravates shaft bushing wear and abnormal noise, and may cause bolt jamming and seizing in severe cases.

3. Chassis System Wear Parts: Highest Fault Frequency Area

The chassis integrates core functions including transmission, driving, braking, steering and hydraulic lifting. It is the system with the highest fault rate and maintenance frequency for the HOWO TX 400HP dump truck. Long-term heavy loads, frequent braking and repeated hydraulic lifting drastically accelerate chassis component wear, making it the key inspection focus for fleet operation and maintenance.

Core Wear Parts List:

• Clutch Assembly: A high-frequency vulnerable part due to working condition adaptation. Frequent start-stop and heavy-load starting easily cause clutch plate wear, pressure plate failure and release bearing damage, ranking first in chassis replacement frequency.

• Rear Axle Differential & Through Shaft: High-fault components for TX dump trucks. Long-term heavy-load impact easily causes fracture, wear and abnormal noise. Regular flaw detection is recommended to avoid shaft breakage and vehicle breakdown.

• Leaf Spring, Lifting Lug & U-bolt: Standard and heavy-load conditions easily squeeze the limiter, causing leaf spring fatigue deformation and elastic attenuation. Long-term stress leads to loose or broken lugs and bolts, resulting in vehicle body tilt.

• Brake Shoe & Brake Drum: Frequent start-stop and continuous braking on construction sites cause rapid wear of braking components and reduced brake sensitivity, serving as conventional wearing parts for the braking system.

• 12.00R20 Tires: Sand and potholed roads greatly increase the risk of tire puncture, bulging and tread wear, shortening tire service life significantly under harsh conditions.

• Drive Axle Fixing Screws & Chassis Ball Joint Bushings: New trucks may have hidden dangers of missing screws. Long-term vibration increases gaps in ball joints and bushings, causing loose steering and driving deviation.

• Hydraulic Lifting System Parts: Including lifting cylinder seals, lifting distribution valves, hydraulic oil pumps, filter screens, power take-offs (PTO) and sealing air pipes. Impure hydraulic oil and frequent lifting operations easily cause seal oil leakage, valve jamming, filter blockage and air pipe leakage, resulting in weak or failed cargo box lifting.

4. Body System Wear Parts: Prevent Vibration Cracking & Sealing Failure

Vehicle body shells and connecting accessories bear continuous high-frequency vibration, coupled with dust and rain erosion, prone to wear, cracking and sealing failure. Neglecting minor faults will lead to severe body damage over time.

Core Wear Parts List:

• Cab Sheet Metal Parts: Long-term continuous vibration causes welding point cracking and sheet metal deformation, undermining body structural stability.

• Door Hinge & Stopper: High-frequency door opening and closing daily wears hinges and disables stoppers, causing door sinking, poor closing and excessive gaps.

• Window Regulator & Guide Rail: Construction site dust invades guide rail gaps, accelerating wear and jamming, leading to window lifting failure and abnormal noise.

• Front Windshield & Sealing Glue: Flying stones easily cause windshield cracks and damage. Aging sealing glue results in water and air leakage.

• Cargo Box Accessories: Cargo box hinges, rear door lock hooks and locking mechanisms wear, deform and jam easily under frequent material loading and impacting, serving as exclusive vulnerable structural parts for dump trucks.

5. Engine & Cooling System Wear Parts: Protect Core Power Stability

Equipped with the Weichai WP10H400E62 engine, the vehicle operates under long-term high-load conditions. High temperature, high pressure and dust accelerate power system component wear. Regular replacement of maintenance parts and inspection of core vulnerable parts are essential to avoid engine overheating, power loss and oil leakage faults.

Core Wear Parts List:

• Tensioner & Drive Belt: Bearing wear and belt aging cause slipping and abnormal noise, and may lead to fan stall and engine overheating breakdown in severe cases.

• Turbocharger Bearing & Seal Ring: Insufficient lubrication during cold start and long-term high-load operation easily cause premature wear and sealing failure, resulting in power drop and oil burning.

• Radiator Water Tank: Dust easily clogs heat dissipation fins, and long-term use causes cracking and leakage, even cylinder block damage. Regular cleaning and antifreeze inspection are required.

• Piston Assembly & Engine Repair Kit: Long-term heavy loads accelerate piston wear and power attenuation. High temperature and pressure easily cause oil seal and gasket leakage, making a full repair kit essential for engine overhaul.

• Four Filters Maintenance Parts: Air filter, oil filter, fuel filter and air conditioning filter. The high-dust construction environment requires shortened replacement cycles: air filter every 20,000-30,000km, oil filter every 5,000km with oil change, fuel filter every 30,000km to ensure clean engine air intake and oil circuit.

6. Electrical & Aftertreatment Control System Wear Parts: Core Maintenance Focus for China 6 Emission Vehicles

After the China 6 emission upgrade, the HOWO TX 400HP dump truck features higher intelligence and electronization. Precision electrical sensors and aftertreatment systems have stricter requirements for working conditions, oil quality and maintenance, becoming the vulnerable links with frequent vehicle faults at present.

Core Wear Parts List:

• Brake Alarm Sensor & Light Switch Relay: Frequent operation and vibration wear easily cause contact ablation and sensor failure, leading to invalid brake alarm and lighting faults.

• Automatic Low Beam Sensor: Surface dust accumulation and damage directly disable the automatic headlight function, endangering night operation safety.

• Full Vehicle Wiring Harness & Connectors: Long-term bumping vibration causes harness wear, loose plugs and poor oxidation contact, which are the main causes of full-vehicle circuit faults.

• Lifting Switch & Limit Valve: High-frequency pressing of hydraulic lifting electronic components easily causes aging and failure, resulting in uncontrolled cargo box lifting and lowering.

• DPF Diesel Particulate Filter: A core vulnerable part for China 6 emission trucks. Poor fuel quality, long-term low-speed idling and dusty working conditions easily cause blockage and fault codes, leading to power limitation and increased fuel consumption.

7. Professional Maintenance & Parts Procurement Advice | Cost Reduction & Efficiency Improvement Solution

The service life of all wear parts of the HOWO TX 400HP dump truck is closely related to working conditions, driving habits and maintenance frequency. For high-risk and high-cost parts including rear axle differential, through shaft, clutch, water tank and DPF, it is recommended that fleets establish a dedicated Vehicle Regular Inspection Form, implement daily inspection, weekly special troubleshooting and monthly in-depth maintenance. Early detection of minor faults and timely preparation of spare parts completely avoid major overhaul failures and long-term downtime losses.

To solve the pain points of difficult procurement, unstable supply, unguaranteed quality and cumbersome inquiry for truck parts among vehicle owners, repair shops and fleets, Shaanxi Jufeng Delong Trading Co., Ltd. provides one-stop procurement services for full-range heavy truck parts. We stably supply genuine and high-quality OEM accessories for mainstream heavy truck brands including SINOTRUK HOWO, SHACMAN, Dongfeng, FAW Jiefang and Foton, covering full categories of chassis core parts, engine parts, electrical sensors, aftertreatment parts and body exterior parts.

We adhere to strict supplier selection, controllable product quality, sufficient spot inventory and fast delivery. We support bulk procurement and customized inquiry with professional technical consultation, fully meeting the parts demand for daily maintenance, fault repair and overhaul of engineering dump trucks. We help every heavy truck maintain high attendance and reduce operational and maintenance costs!

FAQ | 

Q1: What are the most vulnerable parts of the HOWO TX 400HP dump truck?

Vehicle faults are mainly concentrated in the chassis and aftertreatment systems. The rear axle differential, through shaft, clutch assembly, DPF and hydraulic lifting seals are the most frequently damaged parts and the key daily maintenance focuses.

Q2: Is it necessary to shorten the replacement cycle of four filters for construction dump trucks?

Yes! The high-dust and high-impurity construction site conditions are far harsher than highway transportation. Shortening the four filters replacement cycle is necessary to avoid engine power reduction, increased fuel consumption and aggravated wear caused by filter blockage.

Q3: Where to purchase reliable full wear parts for HOWO TX dump trucks?

Shaanxi Jufeng Delong Trading specializes in heavy truck parts supply for years, with full-category spot goods, guaranteed quality and transparent prices, providing one-stop parts procurement and professional technical support services.