Common Rail Fuel Injector 0445120329 5267035EF for ISD4.5 Engine

The 0445120329 Common Rail Fuel Injector plays a vital role in modern electronically controlled diesel fuel systems. Designed to execute multiple micro-injections per combustion cycle (pre-injection, main injection, post-injection), this ISD4.5 fuel injector ensures clean fuel burn, rapid throttle response, and quiet engine operation.

Manufactured in ISO9001-certified facilities using hardened alloy steel nozzles, high-response solenoid valve actuators, and wear-resistant control valves, the 0445120329 injector withstands extreme fuel rail pressures and high combustion temperatures. Replacing worn, leaking, or clogged fuel injectors with a brand-new 0445120329 / 5267035EF unit restores engine horsepower, eliminates black exhaust smoke, and improves fuel economy.

Technical Specifications

Key Features and Benefits

• Ultra-Fine Fuel Atomization: Multi-hole precision spray nozzle design delivers micro-droplet atomization for maximum combustion efficiency and lower fuel consumption.

• Fast Solenoid Response: High-speed solenoid valve enables multiple injection events per cycle, reducing engine noise and lowering harmful emissions.

• Durable Internal Components: Treated valve needles and control seats resist fuel contamination, high pressure erosion, and thermal wear.

• Direct OEM Replacement: Built strictly to OEM standard 0445120329 / 5267035EF dimensions for seamless plug-and-play installation on ISD4.5 fuel rails and cylinder heads.

Compatible Vehicle & Engine Applications

This 0445120329 common rail injector is engineered for medium-duty commercial transport platforms:

• Engine Platform: Cummins ISD4.5 4-cylinder common rail diesel engines.

• Vehicle Applications: Light-to-medium commercial transport trucks, city buses, coaches, and specialized machinery utilizing ISD4.5 series power units.

Symptoms of a Failing Diesel Fuel Injector

Fleet technicians and diesel mechanics should inspect or replace the 0445120329 fuel injector when observing:

• Persistent engine misfiring, rough idling, or uneven power delivery across RPM ranges.

• Excessive black or grey exhaust smoke during acceleration (indicating fuel over-fueling/poor atomization).

• Hard starting or extended cranking caused by injector high-pressure back-leakage.

• Diagnostic Trouble Codes (DTCs) related to cylinder power balance or fuel rail pressure loss.

Packaging and Delivery Details

• Protective Individual Packaging: Each injector is sealed in an anti-rust plastic sleeve and housed in a compact 30x10x10 cm neutral protective box to protect delicate nozzle tips and solenoid terminals.

• Rapid Dispatch: Quick order fulfillment within 3 to 7 days via express courier (DHL, FedEx, UPS), air cargo, or sea transport.

• Flexible Order Support: Single-piece MOQ with flexible payment options including T/T, Western Union, and PayPal.

Frequently Asked Questions (FAQ)

Q1: What engine models use part number 0445120329 fuel injector?

A: Part number 0445120329 (interchangeable with 5267035EF) is specifically designed for Cummins ISD4.5 common rail diesel engines.

Q2: Should copper washer seals be replaced during injector installation?

A: Yes, always install new copper heat shields/washers and O-rings when installing a new 0445120329 fuel injector to prevent cylinder compression blow-by and oil contamination.

Why Choose Us

• Heavy Truck & Engine Fuel System Specialist: Premier exporter supplying genuine and high-quality common rail injectors, fuel pumps, sensor valves, and engine spare parts.

• Rigorous Quality Testing: Every 0445120329 injector undergoes fuel spray pattern, delivery volume, and back-leak testing on high-pressure test benches before packaging.

• Global Shipping & Low MOQ: Fast 3-to-7-day lead times and single-piece MOQ support help keep commercial truck fleets operating efficiently with minimal downtime.

FAQ

Q1: Are you a factory or trading company?

A: We are an integrated manufacturer and exporter with independent production base and automated production lines, able to provide authentic factory-direct products.

Q1: Are you a manufacturer or trading company?

A: We are an integrated production and export enterprise with independent factory and automated production lines, capable of providing direct factory supplied T7H Rearview Mirror Assembly and full-range Sinotruk original accessories.

Q2: What is your minimum order quantity for this mirror assembly?

A: The standard MOQ of this product is 2 pieces. We support flexible procurement modes including sample testing, small-batch trial orders and large-batch bulk wholesale to adapt to different customer needs.

Q3: What after-sales warranty do you provide?

A: We provide targeted quality warranty service. Within the valid warranty period, we undertake full responsibility and provide replacement and maintenance services for quality problems caused by our production process.

Q4: What is your specific delivery cycle?

A: In-stock products can be delivered within 7-45 working days. Conventional out-of-stock orders take 10-25 working days. Customized products will confirm the delivery time separately according to the production cycle.

Q5: Which regions are your main export markets?

A: Our products are sold globally, covering Europe, North and South America, Southeast Asia, Africa and other regions, with long-term stable cooperative dealer groups and market resources.

Q6: What kind of packaging do you adopt for shipment?

A: We use thickened double-wall cartons with internal shockproof and compression-proof protection materials, which can effectively resist extrusion and collision during long-distance transnational transportation to ensure intact product delivery.