Mazda WL 2.5L Diesel Cylinder Head 908745 WL3110100H BT 50

Product NO.

Product Information Cylinder Head

1. WL Engine Overview

• Engine Type: Inline 4-cylinder diesel engine
• Displacement: 2.5L
• Fuel Type: Diesel
• Technical Features:
  • Turbocharged (Turbocharged): Enhances air intake, improving engine efficiency.
  • Intercooler: Lowers air temperature to increase air density, improving engine performance.
  • Common Rail Direct Injection: Allows more precise fuel injection control for improved combustion efficiency and reduced emissions.
  • DOHC (Dual Overhead Camshaft): Optimizes engine airflow, maintaining stable performance at high RPM.

2. WL Engine Manufacturing Process

• Aluminum Alloy Cylinder Head and Block: The engine block and cylinder head are made of aluminum alloy, making the engine lightweight and improving heat dissipation, reducing damage from overheating.
• High-Precision Casting and Machining: The casting process of the engine block and cylinder head is precise, followed by CNC machining to ensure accurate part fitment.
• Turbocharger System: The turbocharger is produced with strict mechanical processing, heat treatment, and dynamic balancing checks to ensure high efficiency and longevity.
• Coating Technology: The inner walls of the engine block and cylinder head may use wear-resistant coatings to improve friction performance and reduce wear.
• Common Rail System: The diesel common rail system uses high-pressure fuel injection technology for more efficient fuel delivery, reducing emissions.

3. WL Engine Technical Specifications

• Maximum Power: Approximately 100-130 horsepower (depending on tuning and application)
• Maximum Torque: 250-300 Nm (depends on tuning and application)
• Fuel Efficiency: Compared to traditional gasoline engines, diesel engines generally offer higher fuel efficiency.
• Emission Standards: Primarily meets Euro 3 or Euro 4 emissions standards, with some newer models meeting Euro 5 or Euro 6.

4. WL Engine Applicable Models

• Mazda:
  • Mazda BT-50: A popular pickup truck, widely using the WL engine, suitable for commercial use and heavy-duty driving.
  • Mazda 6: Some older diesel versions of the Mazda 6 also use the WL engine.
  • Mazda CX-7: WL engine may be found in certain regions of the CX-7, offering higher power and better fuel economy.
  • Mazda 3: Some diesel versions of the Mazda 3 also use the WL engine, suitable for everyday city driving and highway cruising.
• Other Brands:
  • Ford: Ford uses the WL engine in some of its commercial vehicles and pickup trucks, especially in the Australian market.
  • Suzuki: Some small commercial vehicles and light trucks from Suzuki use the WL engine, especially in Asian markets.

5. WL Engine Market Distribution

• Asian Market:
  • The WL engine is widely used in the Asian markets, including China, India, and Malaysia, especially in light trucks, pickups, SUVs, and commercial vehicles.
  • In China, the Mazda BT-50 and other brand pickups use the WL engine, catering to local diesel-powered vehicle demand.
• European Market:
  • The WL engine is also widely used in light commercial vehicles and SUVs in Europe, particularly in markets with high diesel engine demand.
  • In Europe, WL engines are typically found in vehicles meeting Euro 5 and Euro 6 emission standards.
• Australia and New Zealand Market:
  • Due to its ability to handle heavy loads, Mazda and other brands use the WL engine in their pickup trucks and commercial vehicles in the Australian and New Zealand markets.
• North American Market:
  • In North America, the WL engine is primarily used in commercial vehicles and light trucks, with a notable presence in truck product lines.

6. Common WL Engine Failures

• Turbocharger Failures: Prolonged overheating or lack of lubrication can damage the turbocharger, affecting engine power output.
• Injector Blockage: Diesel engine injectors are prone to clogging due to poor fuel quality or carbon buildup, affecting fuel injection efficiency.
• Cooling System Failures: Prolonged high-temperature operation can lead to leaks or low coolant levels, causing engine overheating.
• EGR Valve Failures: Faults in the Exhaust Gas Recirculation (EGR) system can cause excessive emissions and degrade engine performance.

7. WL Engine Cylinder Head

• Cylinder Head Material: The WL engine’s cylinder head is typically made of aluminum alloy, providing better heat dissipation and a lightweight design.
• Valve Configuration: The WL engine uses a DOHC (Dual Overhead Camshaft) configuration with 4 valves per cylinder, which helps improve airflow efficiency and engine performance.
• Cylinder Head Sealing: The cylinder head uses high-quality sealing gaskets to ensure the separation of gases, oil, and coolant, preventing leaks.
• Maintenance and Replacement: Over time, the cylinder head may crack, warp, or degrade, especially under high-temperature conditions, making regular inspection and timely replacement essential for maintaining engine performance.

8. WL Engine Routine Maintenance

Exhaust System Inspection: Regularly check the EGR system and exhaust components to avoid carbon buildup affecting engine performance.

Regular Oil and Filter Change: Regularly change the engine oil using oil that meets the specifications for diesel engines to keep the engine lubricated and reduce wear.

Turbocharger Inspection: Regularly inspect the turbocharger’s lubrication system to avoid damage caused by lack of oil.

Fuel System Cleaning: Periodically clean the injectors and fuel lines to prevent clogging and ensure efficient fuel delivery.

Coolant System Inspection: Ensure coolant levels are adequate and check the cooling system for leaks or blockages.