Product Overview

This high-quality Diesel Injector Nozzle (DLLA155S658 / 0433271898) is a direct replacement for Bosch-style fuel injection systems used in heavy-duty diesel truck engines. Manufactured to strict OEM specifications, this nozzle ensures precise fuel atomization for optimal combustion efficiency, reduced emissions, and improved engine performance. We serve a global network of B2B clients, including distributors, repair shops, and fleet operators across North America, Europe, Southeast Asia, and the Middle East.

Key Features & Benefits

• Precision Engineering: Manufactured from high-speed steel for superior wear resistance and long service life.
• Optimal Fuel Atomization: Designed to deliver the exact spray pattern required for complete combustion, reducing fuel consumption and smoke.
• Direct Fitment: Exact OEM dimensions (DLLA155S658) ensure a perfect, plug-and-play installation without modifications.
• Rigorous Testing: Each nozzle is tested for opening pressure, spray pattern, and leak-tightness before shipment.
• Cost-Effective Solution: A reliable aftermarket alternative to expensive OEM parts, offering high performance at a competitive price point.

Technical Specifications

OEM Cross-Reference

This nozzle is a direct replacement for the following OEM and industry-standard part numbers:

• Bosch: 0 433 271 898
• Interchange: DLLA155S658, DLLA 155 S658
• Related Numbers: 0433271898

Compatibility

• Engine Type: Diesel engines (common rail and older injection systems requiring DLLA style nozzles).
• Vehicle Application: Heavy-duty diesel trucks, agricultural tractors, construction machinery, and industrial generators.
• Note: This is a specific nozzle type (DLLA155S658). Always verify the existing nozzle number in your injector before purchasing.

Global Supply & Distribution

• Worldwide Shipping: We ship to all major global markets via air, sea, and express courier (DHL, FedEx, UPS, TNT).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Netherlands), Asia-Pacific (Japan, Korea, Australia), Middle East (UAE, Saudi Arabia), and Africa.
• Fast Delivery: Stock is ready for immediate dispatch from our warehouses in Shandong, China. Typical transit times to major ports are 5-15 days.
• Export Experience: Our team is experienced in international trade documentation, customs clearance, and compliance with your local regulations.

Quality Assurance

• Manufacturing Standards: Produced in an ISO-certified facility following strict quality control protocols.
• Testing: 100% tested for spray pattern, opening pressure, and sealing performance before packing.
• Warranty: 4-month warranty against manufacturing defects. We stand behind the quality of our products.

FAQ

Q1: How do I verify that the DLLA155S658 nozzle fits my injector?
A: You must remove the existing nozzle from your injector and check the number stamped on its side. It should match DLLA155S658 or 0 433 271 898. This nozzle is designed for specific Bosch injector bodies. Do not rely solely on the vehicle model for selection.

Q2: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel technician. The nozzle seat must be perfectly clean. Use a new copper washer and tighten the nozzle retaining nut to the manufacturer’s specified torque (usually around 60-80 Nm, but check your engine manual). Over-tightening can damage the nozzle body.

Q3: How can I maximize the lifespan of this injector nozzle?
A: Use high-quality, clean diesel fuel and replace your fuel filters regularly. Contaminated fuel is the primary cause of nozzle failure. For long-term storage, keep the nozzles in their original packaging in a dry, clean environment to prevent corrosion.