Zexel Common Rail Injector Nozzle 105025-4200 156sm420 150sm303 DLLA152PN375 134101-9120-00 for

Product Details

Product Overview

This high-quality Zexel common rail injector nozzle is a precision-engineered fuel injection component designed for demanding diesel engine applications. Identified by multiple cross-referenced part numbers including 105025-4200, 156sm420, 150sm303, and DLLA152PN375, this nozzle is manufactured to meet or exceed original equipment specifications. It is commonly used in Isuzu 4LE2 series engines, which power a range of medium-duty trucks and excavators.

As a genuine replacement part, this injector nozzle ensures optimal fuel atomization, combustion efficiency, and engine performance. The part number 134101-9120-00 provides an additional OEM cross-reference point, confirming its compatibility with specific Isuzu fuel systems. This nozzle is suitable for both direct replacement and service repair applications.

Please verify your existing part number and engine model before purchase to ensure correct fitment. While this nozzle is designed for the Isuzu 4LE2 engine platform, we recommend confirming compatibility with your specific vehicle or equipment model and year.

Key Features & Benefits

• Precision Fuel Atomization: Engineered with exacting internal geometries to deliver optimal spray patterns for complete combustion, reducing fuel consumption and emissions.
• Genuine Zexel Quality: Manufactured to the same rigorous standards as original equipment, ensuring reliable performance and long service life.
• Multiple Cross-Reference Confidence: Identified by several part numbers (105025-4200, 156sm420, 150sm303, DLLA152PN375, 134101-9120-00) for easy identification and replacement.
• Durable Steel Construction: Built from high-grade steel to withstand extreme injection pressures and thermal cycling common in common rail systems.
• 6-Month Warranty Coverage: Backed by a comprehensive warranty for peace of mind on your investment.
• Direct Replacement Design: Drop-in fit for compatible Isuzu 4LE2 engines with no modifications required.

Technical Specifications

OEM Cross-Reference

This injector nozzle is a direct replacement for the following OEM and industry-standard part numbers. Use this cross-reference to verify compatibility with your existing equipment:

• Zexel / Bosch: DLLA152PN375
• Isuzu / Hitachi: 134101-9120-00
• Zexel Injector Series: 105025-4200
• Service Number: 156sm420, 150sm303

Note: Cross-references are provided for identification purposes. Always verify physical compatibility with your existing nozzle and injector assembly.

Compatibility

This common rail injector nozzle is commonly used for the following applications. Fitment may vary by specific equipment configuration:

• Engine Models: Isuzu 4LE2 series diesel engines
• Vehicle Applications: Isuzu Medium Duty trucks (N-Series, NPR, NQR) and similar chassis
• Equipment Applications: Excavators, construction machinery, and industrial equipment powered by Isuzu 4LE2 engines
• Common Installations: Replacement in common rail fuel injection systems requiring DLLA152PN375 nozzle specifications

Compatibility is inferred based on standard industry applications. We recommend confirming with your equipment’s service manual or existing part number before ordering.

Global Supply & Distribution

We maintain a robust global supply chain capable of shipping this injector nozzle to customers worldwide. Our distribution network serves major industrial markets including:

• North America: Fast delivery to US and Canadian ports and distribution centers
• Europe: Regular shipments to EU countries, UK, and Eastern European markets
• Asia-Pacific: Direct service to Japan, Australia, Southeast Asia, and Indian markets
• Middle East & Africa: Reliable shipping to UAE, Saudi Arabia, South Africa, and key industrial zones
• Latin America: Coverage for Brazil, Mexico, and major South American markets

We offer flexible shipping options including express courier (DHL, FedEx, UPS) for urgent orders and economical sea freight for bulk purchases. Our export documentation supports smooth customs clearance worldwide.

Quality Assurance

Each injector nozzle undergoes rigorous quality control to ensure it meets original equipment specifications:

• Manufacturing Standards: Produced under ISO-certified facilities with precision machining tolerances
• Testing Procedures: Each nozzle is flow-tested and spray-pattern verified before packaging
• Material Certification: High-grade steel components are sourced from qualified suppliers
• Warranty: 6-month warranty against manufacturing defects from date of purchase
• After-Sales Support: Video technical support available for installation guidance and troubleshooting

FAQ

Q1: How can I confirm this nozzle fits my Isuzu 4LE2 engine?
A: First, remove your existing injector nozzle and check the part number stamped on it. If it matches any of the numbers listed (DLLA152PN375, 105025-4200, 156sm420, 150sm303, or 134101-9120-00), this nozzle is a direct replacement. Also verify your engine model plate confirms it is a 4LE2 series engine. For excavator applications, check your equipment’s service manual for injector specifications.

Q2: What is the recommended installation procedure for this common rail nozzle?
A: Installation should be performed by a qualified diesel technician. Key steps include: thoroughly cleaning the injector body and nozzle seat area, replacing copper washers and seals, torquing to manufacturer specifications (typically 60-80 Nm for 4LE2 applications), and priming the fuel system before starting. Always consult your engine’s service manual for exact torque values and procedures. We provide video technical support if needed during installation.

Q3: How long does this nozzle typically last, and what are signs of wear?
A: Service life varies with fuel quality, maintenance intervals, and operating conditions. Typically, common rail nozzles last 100,000-200,000 km (60,000-120,000 miles) in truck applications or 3,000-5,000 hours in excavator use. Signs of wear include rough idling, increased fuel consumption, black smoke from exhaust, hard starting, or engine misfire under load. Regular fuel filter changes and using clean, high-quality diesel significantly extend nozzle life.