Product Overview

The DLLA147P658 Diesel Fuel Injector Nozzle (OEM 0433171478) is a premium replacement component engineered for Bosch common rail fuel injection systems used in heavy-duty diesel engines. Manufactured to exact OEM specifications, this nozzle tip delivers precise fuel atomization, ensuring optimal combustion efficiency, reduced emissions, and reliable engine performance.

We supply this injector nozzle to diesel repair workshops, engine rebuilders, and parts distributors across North America, Europe, the Middle East, Southeast Asia, and South America. With established export channels and partnerships with major logistics providers, we ensure fast, compliant delivery to major ports and industrial centers worldwide.

Key Features & Benefits

• OEM-Grade Precision: Manufactured to Bosch 0433171478 specifications for exact fit and function
• Superior Atomization: Multi-hole nozzle design ensures fine fuel spray patterns for complete combustion
• Heat-Resistant Construction: High-grade alloy steel withstands extreme combustion temperatures and pressures
• Extended Service Life: Hardened nozzle tip resists wear and carbon buildup for longer replacement intervals
• Fuel Efficiency: Optimized flow characteristics reduce fuel consumption and improve power output
• Emission Compliance: Supports Euro III/IV/V and equivalent emission standards
• 100% Factory Tested: Each nozzle undergoes flow rate and spray pattern validation before shipment

Technical Specifications

OEM Cross-Reference

This nozzle is a direct replacement for the following OEM and alternative part numbers:

• 0433171478 — Bosch OEM Number
• DLLA147P658 — Bosch Nozzle Designation
• DLLA 147 P 658 — Alternate Format
• 0 433 171 478 — Bosch Full Format

Note: Cross-reference numbers are for identification purposes only. Always verify part numbers against your engine’s original specifications before ordering.

Compatibility

This injector nozzle is designed for Bosch common rail diesel injection systems and is compatible with a range of heavy-duty and industrial diesel engines. Common applications include:

• Heavy-Duty Trucks & Buses: Commercial vehicle diesel engines using Bosch common rail systems
• Construction Equipment: Excavators, loaders, and dozers with Bosch-injected diesel engines
• Industrial Engines: Generator sets, marine engines, and agricultural machinery
• Engine Families: Compatible with various Bosch common rail platforms requiring DLLA147P658 nozzles

Important: Always confirm the nozzle part number stamped on your existing injector or consult your engine’s service manual before purchase. If you are unsure about fitment, contact our technical team with your engine model and serial number for verification.

Global Supply & Distribution

• Worldwide Shipping: Air freight, sea freight, and express courier (DHL, FedEx, UPS) available
• Major Markets: North America, Europe, Middle East, Southeast Asia, South America, Africa, and Oceania
• Fast Delivery: Expedited shipping to major ports including Los Angeles, Rotterdam, Jebel Ali, Singapore, and Santos
• Export Compliance: Full documentation support including commercial invoice, packing list, certificate of origin, and HS code classification
• Flexible Order Quantities: Sample orders for evaluation and bulk orders for distributors and repair chains
• Warehouse Network: Strategic stocking locations to reduce lead times for high-demand regions

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001-certified facilities following Bosch OEM specifications
• Testing Procedures: 100% flow rate testing, spray pattern inspection, and pressure integrity checks on every unit
• Material Verification: Spectrometer analysis of alloy composition to ensure hardness and heat resistance
• Warranty: 6–12 month warranty against manufacturing defects (terms vary by order volume and region)
• Quality Documentation: Test reports and material certificates available upon request

FAQ

Q1: How do I confirm that the DLLA147P658 nozzle fits my engine?

Check the part number stamped on your existing injector nozzle body. It should read “DLLA147P658” or “0433171478.” You can also consult your engine’s service manual or contact us with your engine model, serial number, and injector part number. Our technical team will verify compatibility within 24 hours.

Q2: What is the installation procedure for this injector nozzle?

Nozzle replacement requires specialized tools and a clean working environment. The injector must be disassembled, the old nozzle removed, and the new nozzle installed with a new sealing washer. Torque specifications must be followed precisely. We strongly recommend installation by a qualified diesel fuel injection technician. Improper installation can cause poor spray patterns, fuel leaks, or engine damage.

Q3: How often should diesel injector nozzles be replaced?

Replacement intervals depend on fuel quality, operating conditions, and engine hours. As a general guideline, inspect nozzles every 2,000–3,000 engine hours or whenever you notice symptoms such as rough idling, excessive smoke, power loss, or increased fuel consumption. Using high-quality fuel and maintaining proper filtration extends nozzle life significantly.