Zexel Nozzle DLLA154PN016 DLLA150PN035 DLLA155PN037 Plunger 105025-3030 150SM303 for Isuzu 6BG1 6HH1

Product Details

Product Overview

This listing offers a comprehensive set of genuine Zexel fuel injection components specifically designed for Isuzu medium-duty diesel engines. The core product set includes a high-precision injector nozzle (part numbers DLLA154PN016, DLLA150PN035, DLLA155PN037) along with the corresponding plunger (105025-3030 / 150SM303) and delivery valve assembly. These parts are critical for maintaining the correct fuel atomization, injection pressure, and timing within the injection pump.

Primarily engineered for the Isuzu 6BG1 (6.5L) and 6HH1 engine platforms, which were widely used between 1986 and 1993, these components are essential for restoring fuel system performance in excavators, trucks, and other heavy machinery. The components are supplied as new, genuine parts, ensuring a direct replacement fit and reliable operation. Please verify your existing part numbers (DLLA154PN016, 105025-3030) to confirm compatibility before purchase.

Key Features & Benefits

• Genuine Zexel Quality: Manufactured by Zexel, a leading OE supplier known for precision and durability in diesel fuel injection systems, ensuring a long service life.
• Precise Fuel Atomization: The multi-hole nozzle design (DLLA) delivers a finely atomized fuel spray pattern, promoting complete combustion for increased power and reduced emissions.
• Complete Fuel System Kit: Includes the nozzle, plunger, and delivery valve, providing the essential components needed for a comprehensive injector or injection pump overhaul.
• OEM Specification Fit: Machined to exact OE tolerances for the Isuzu 6BG1 and 6HH1 engines, guaranteeing a seamless installation without modifications.
• Restored Engine Performance: Replaces worn components to resolve common issues like hard starting, rough idling, black smoke, and loss of power.
• Long-Lasting Parts: Constructed from high-grade steel with a hardened surface to withstand the extreme pressures and temperatures inside the combustion chamber.

Technical Specifications

OEM Cross-Reference

This product set directly replaces or is equivalent to the following original equipment manufacturer (OEM) part numbers. Use this list to verify your existing part numbers.

• Zexel Nozzle Numbers: DLLA154PN016, DLLA150PN035, DLLA155PN037
• Zexel Plunger Number: 105025-3030, 150SM303
• Commonly Interchangeable With: 093400-3030, 105000-3030

Compatibility

These fuel injection components are specifically designed for use in the following engine models and applications. Fitment is based on the OEM specifications provided.

• Engine Models: Isuzu 6BG1 (6.5L), Isuzu 6HH1
• Vehicle/Equipment Application: Isuzu Medium Duty Trucks, Excavators, and other industrial machinery.
• Year Range: Commonly used for engines manufactured between 1986 and 1993.

Note: While this is the correct set for the listed Isuzu engines, we recommend comparing the part numbers on your existing nozzle and plunger to ensure an exact match for your specific injection pump model.

Global Supply & Distribution

We specialize in the global supply of heavy-duty diesel engine parts, ensuring that critical components like these Zexel injector parts reach our customers worldwide. Our logistics network supports fast and reliable shipping to major industrial markets.

• Worldwide Shipping: We ship to all continents, including North America, South America, Europe, Asia-Pacific, the Middle East, and Africa.
• Major Ports & Hubs: Expedited delivery to major ports and industrial centers such as Los Angeles, Rotterdam, Dubai, Singapore, and Shanghai.
• Export Experience: We handle all international trade documentation and customs compliance to ensure a smooth transaction for B2B buyers.

Quality Assurance

We are committed to providing only high-quality, reliable parts for commercial and industrial applications.

• Manufacturing Standards: Products are manufactured in ISO-certified facilities, adhering to strict quality control measures.
• Testing: Each component is tested for dimensional accuracy and material integrity before shipment to ensure it meets OE performance standards.
• Warranty: All parts come with a 6-month warranty against manufacturing defects. After-warranty support, including video technical assistance, is available to help with installation and troubleshooting.

FAQ

Q: How can I confirm that the DLLA154PN016 nozzle will fit my specific injection pump?
A: The DLLA154PN016 is a standard Zexel nozzle size commonly used in Isuzu 6BG1 and 6HH1 engines. To confirm, you should remove your existing nozzle and check the part number stamped on its side. If it matches DLLA154PN016, DLLA150PN035, or DLLA155PN037, this is the correct replacement. Also, verify your plunger number (e.g., 105025-3030) for the pump element.

Q: What is the recommended procedure for installing the new plunger and delivery valve?
A: Installation requires meticulous cleanliness. First, soak the new parts in clean diesel fuel. When installing the plunger into the barrel, ensure it slides freely without any binding. The delivery valve holder should be torqued to the manufacturer’s specific specification (typically found in the engine service manual). Over-tightening can distort the valve body. We recommend having a certified diesel technician perform the installation if you are not experienced with injection pump work.

Q: What are the signs that my current injector nozzles and plungers need replacing?
A: Common symptoms include: difficulty starting the engine (especially when cold), excessive black or white smoke from the exhaust, a rough or irregular idle, a noticeable loss of engine power under load, and increased fuel consumption. If you suspect internal wear, a pop tester can measure the nozzle’s opening pressure and spray pattern to confirm if replacement is necessary.