Perkins C7.1 T405344 Oil Nozzle — Precision Fuel Injection for Excavator Diesel Engines

The Perkins T405344 Oil Nozzle is a precision-engineered fuel injection component designed for Perkins C7.1 series electronically controlled diesel engines, widely deployed in CAT excavators (320D, 323D, 325D, 329D) and other heavy-duty construction machinery. This oil nozzle delivers superior fuel atomization, contributing to optimized combustion efficiency, reduced exhaust emissions, and reliable engine performance under the most demanding operating conditions.

Engine Compatibility & Application

Designed as a direct replacement for Perkins OEM part number T405344, this fuel oil nozzle injector is compatible with the following engine models and equipment:

• Perkins C7.1 — 7.1L electronic control diesel engine (Tier 3 / Stage IIIA)
• Perkins 1104C-44T — 4.4L turbocharged diesel engine
• Perkins 1104D-44T — 4.4L turbocharged aftercooled diesel engine
• Perkins 1104 Series — Industrial diesel engines
• Compatible excavator models: CAT 320D, 323D, 325D, 329D, Komatsu PC200-8, Hitachi ZX200, Volve EC210, Doosan DX225, Hyundai R210

Technical Specifications

Manufacturing Excellence & Quality Control

Each T405344 oil nozzle is produced using advanced CNC precision machining centers and undergoes a rigorous multi-stage quality inspection process before shipment:

• Fuel Flow Testing: High-pressure fuel flow and leak-tightness verification under simulated engine conditions
• Spray Pattern Analysis: Computer-aided spray pattern verification and atomization uniformity assessment
• Dimensional Inspection: Micron-level precision measurement of all critical tolerances
• Hardness Testing: Surface hardness verification to ensure wear resistance
• Visual Inspection: 100% visual examination for surface finish and material integrity

Key Features

• Optimized Atomization: Multi-hole nozzle design produces an ultra-fine fuel mist pattern for complete and efficient combustion
• Heavy-Duty Durability: Premium alloy steel body with specialized heat treatment extends service life in continuous operation
• Direct OEM Replacement: Precision-machined to Perkins factory specifications, drop-in fit with no modification required
• Individually Tested: Each nozzle is pressure-tested and spray-pattern verified to ensure consistent batch-to-batch performance
• Excavator-Optimized: Engineered to withstand high vibration, temperature cycling, and dusty environments common to excavator operations

Packaging & Shipping

Each oil nozzle is individually packed in a protective WNRLN branded color box with shock-proof foam insert to prevent transit damage. Outer packaging uses export-grade corrugated cartons with clear product labeling, quantity count, and handling instructions. Custom OEM packaging solutions and private labeling are available for volume orders. Standard delivery time is 3-7 working days for stock items and 15-25 days for production quantities.

About WNRLN

WNRLN is a trusted supplier of aftermarket excavator engine parts with over a decade of industry experience. Our ISO 9001:2015 certified manufacturing facility produces high-precision diesel engine components exported to over 30 countries worldwide. We specialize in Perkins, CAT, Komatsu, and Cummind replacement parts, offering competitive pricing and consistent quality for distributors, repair workshops, and fleet operators globally.