105007-1210 Diesel Injector Nozzle Dnopdn121 for Isuzu 6HH1 NPR Engine

Product Details

Product Overview

This is a high-quality, genuine new diesel injector nozzle, specifically designed for the Isuzu 6HH1 engine platform. The part is identified by the OEM number 105007-1210 and cross-references as model Dnopdn121. As a critical component of the fuel injection system, this nozzle ensures precise fuel atomization, which is essential for optimal combustion efficiency, engine power output, and reduced emissions.

Commonly used for applications in the Isuzu NPR series of trucks and buses manufactured between 1976 and 1993, this injector nozzle is a direct replacement for worn or clogged units. While the 6HH1 engine is a primary application, this nozzle may also be compatible with other industrial engines utilizing the same injection system. We advise verifying your specific engine code and part number before purchase to ensure perfect fitment.

Sourced from Japan, this nozzle represents the original equipment standard, offering reliable performance and a long service life for commercial vehicles and heavy equipment.

Key Features & Benefits

• Genuine Quality: Manufactured to the exacting standards of, a leading OE supplier for Isuzu, ensuring precise tolerances and reliable performance.
• Direct OEM Replacement: Matches the original part number 105007-1210 and Dnopdn121, guaranteeing a direct bolt-on installation without modifications.
• Optimized Fuel Atomization: Precision-machined nozzle holes create a fine fuel spray pattern, leading to more complete combustion, better fuel economy, and lower exhaust smoke.
• Enhanced Engine Performance: Restores lost power, improves throttle response, and ensures smooth idling by delivering the correct fuel volume and spray pattern.
• Durable Construction: Built from high-grade alloy steel to withstand extreme pressures and temperatures inside the combustion chamber, ensuring a long operational lifespan.
• Rigorous Testing: Each nozzle is tested for opening pressure, spray pattern, and leakage to meet strict quality control standards before shipment.
• Global Compatibility: Designed for the Isuzu 6HH1 engine, widely used in NPR, NQR, and similar medium-duty trucks, as well as various industrial and marine applications.

Technical Specifications

OEM Cross-Reference

This injector nozzle is a direct replacement for the following original equipment manufacturer (OEM) and reference numbers. Please confirm your existing part number against this list.

• : 105007-1210, Dnopdn121
• Isuzu (OEM): 105007-1210

Note: This list is based on the provided data. For absolute certainty, we recommend comparing the physical dimensions and part number on your existing nozzle.

Compatibility

This nozzle is specifically designed for the Isuzu 6HH1 engine. It is commonly used for the following vehicle models and equipment:

• Isuzu NPR (Medium-duty truck)
• Isuzu NQR (Medium-duty truck)
• Other Isuzu commercial vehicles and industrial machinery powered by the 6HH1 engine from the 1976-1993 era.

Fitment Disclaimer: While this part is specified for the models above, we recommend confirming your engine code (6HH1) and the existing part number on your injector to ensure compatibility.

Global Supply & Distribution

We are a dedicated supplier of heavy-duty diesel engine parts with a robust international logistics network. We offer worldwide shipping to major industrial centers and ports, ensuring your order arrives quickly and safely.

• Major Markets Served: North America, Europe (EU), Asia-Pacific, Middle East, Africa, and South America.
• Shipping Expertise: We handle all export documentation and customs clearance procedures for smooth international transactions.
• Fast Delivery: Orders are processed within 24-48 hours of payment receipt. We partner with leading carriers (DHL, FedEx, UPS, TNT, and Sea Freight) to offer competitive transit times.
• Logistics: Our packaging is designed for international transit, protecting the injector nozzle from damage during shipping.

Quality Assurance

We are committed to providing only the highest quality parts to our B2B clients.

• Manufacturing Standard: This is a genuine part manufactured in Japan, meeting all original equipment specifications.
• Testing: Each nozzle undergoes strict quality control checks, including spray pattern analysis, opening pressure calibration, and leak testing.
• Warranty: All parts are backed by a 6-month warranty against manufacturing defects. We provide after-warranty service, including video technical support to assist with diagnostics and installation.
• Certification: Our supply chain adheres to international quality management standards.

FAQ

Q1: How can I confirm this nozzle (105007-1210) fits my Isuzu NPR engine?
A: First, verify your engine code. It should be stamped on the engine block, typically on a flat surface near the injection pump or on the valve cover. If the code is 6HH1, this nozzle is the correct type. Second, remove one of your old nozzles and check for the part number 105007-1210 or Dnopdn121 stamped on its body. If both match, the fitment is guaranteed.

Q2: What are the signs that my injector nozzles need replacement?
A: Common symptoms of worn or clogged injector nozzles include: excessive black or white smoke from the exhaust, rough idling or engine misfire, a noticeable loss of engine power and fuel economy, hard starting, and increased engine noise (a “knocking” sound). Replacing the nozzles as a complete set is the recommended best practice to ensure balanced engine performance.

Q3: Do I need to adjust the opening pressure after installing these new nozzles?
A: Yes, it is a critical step. While the nozzles are pre-calibrated, they must be installed into your existing injector bodies. The opening pressure should be set to the manufacturer’s specification for the 6HH1 engine (typically around 200-220 kg/cm², but consult your service manual). This adjustment ensures the nozzle opens and closes at the correct pressure for optimal fuel atomization. We recommend having this work performed by a qualified diesel technician.