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Marine Spares Online offers a 30-day return policy. This means you have 30 days from the date you receive your item to request a return.
To be eligible for a return, items must be in the same condition as received, unused, and in their original packaging. Proof of purchase is required for all returns.
To initiate a return, please contact us through our website. If your return request is approved, you will receive instructions on how and where to send the item. Items returned without prior approval will not be accepted.
Shipping
Domestic shipping options include standard and express services. Standard shipping generally takes between 3–7 business days, while express shipping typically arrives within 1–3 business days. Delivery timeframes may vary based on location, product availability, and carrier services.
Shipping costs are calculated at checkout based on order size, weight, and destination.
International delivery times and costs vary by destination. Any applicable customs duties, taxes, or import fees are the responsibility of the recipient.
Order Tracking
Once an order has been dispatched, tracking details will be provided so you can monitor the progress of your shipment.
Product Description
Part Name: Fuel Injector
Part Number: 0445120121, 4940640
Brand Compatibility: Cummins
Machine Type: Diesel Engine
Applicable Models: ISB, QSB 6.7
Description: This aftermarket fuel injector is designed for Cummins ISB and QSB 6.7 engines, delivering precise high-pressure fuel atomization for efficient combustion. Manufactured to meet demanding performance standards, it ensures improved fuel efficiency, reduced emissions, and consistent engine performance in both marine and heavy-duty applications.
Function: It injects fuel into the combustion chamber at high pressure in a finely atomized spray, ensuring optimal air-fuel mixing and efficient engine operation.
System Type: Fuel Injection System
Technical Specifications:
Type: Common rail fuel injector
Material: High-strength steel and precision-engineered alloy components
Flow Rate: Calibrated for Cummins ISB and QSB 6.7 engine requirements
Mounting: Direct-fit, engine-mounted installation
Operation: Electronically controlled high-pressure injection system
Compatibility: Compatible with Cummins ISB and QSB 6.7 diesel and marine engines
Condition: New aftermarket replacement part (non-OEM), engineered for durability and reliable performance
Category: Diesel Engine Fuel System Parts
Shipping: Available for worldwide shipping with secure packaging and fast, reliable delivery options
Regular price
$1,395.00 AUD
Sale price
$650.00 AUD
Unit price/ per
Marine Spares Online
Fuel Injector 0445120121 4940640 for Cummins Diesel Engine...
Regular price
$650.00 AUD
Regular price
$1,395.00 AUD
Sale price
$650.00 AUD
Unit price/ per
Built for Marine Conditions
Clear Compatibility
Practical Support
Our parts are selected to withstand harsh marine environments, where saltwater, vibration, and continuous operation demand durable, marine-grade components you can rely on.
We prioritise accurate product information and brand compatibility, helping you choose the right part the first time and avoid costly delays or incorrect orders.
Whether you’re maintaining a recreational vessel or operating commercially, we provide straightforward assistance to help you source the correct components with confidence.
Browse parts by leading marine engine and generator brands.
Marine Spares Online
Marine Spares Online supports many of the world’s leading marine engine and generator manufacturers. Browse by brand to find compatible parts designed to meet original specifications and marine-grade standards.
Marine Spares Online focuses on supplying reliable, marine-grade parts with clear compatibility and practical support. We help vessel owners and operators source the right components with confidence, reducing downtime and ensuring dependable performance.
 
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FAQs
Marine Spares Online
1. Do you ship Australia-wide?
Yes, we ship orders across Australia. Shipping options and costs are calculated at checkout based on your location and order size.
2. How long does delivery take?
Delivery times vary depending on the product and destination. Estimated dispatch and delivery timeframes are shown on each product page.
3. Are all items stocked locally?
Some items are held in local stock, while others are sourced from trusted suppliers. Availability and lead times are clearly displayed before purchase.
4. Will I receive tracking information?
Yes. Once your order has been dispatched, tracking details will be sent to you by email.
5. Do you offer international shipping?
We primarily ship within Australia. For international orders, please contact us before placing your order.