FAQs

Find answers to the most common questions about our diesel fuel system parts, ordering process, and support services. Can't find what you're looking for? Contact our team — we're happy to help.

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Products & Compatibility

How do I know which fuel injector or pump fits my engine?

The best way is to provide your engine's make, model, year, and engine code (or OEM part number). Our team can cross-reference these details to confirm the correct fit. You can also check the product listing for compatible engine models, or contact us for a free compatibility check.

Do you sell OEM parts, aftermarket parts, or both?

We stock both OEM (Original Equipment Manufacturer) and premium aftermarket diesel fuel system components. Each product listing specifies the part type. Aftermarket parts we carry meet or exceed OEM specifications for performance and durability.

Can I use a part number from my old component to find a replacement?

Yes — OEM part numbers are one of the most reliable ways to find an exact match. Enter the part number in our search bar or send it to us directly and we'll locate the right replacement for you.

Do you carry parts for both common rail and mechanical injection systems?

Yes. We supply components for a wide range of diesel injection systems including common rail, mechanical pump, unit injector (HEUI), and rotary pump systems used in commercial trucks, agricultural machinery, marine engines, and industrial equipment.

What if the part I need isn't listed on your site?

We offer custom sourcing and pre-orders for hard-to-find or specialist diesel parts. Contact us with your requirements and we'll do our best to source it for you.

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Installation & Technical Support

Do you provide installation guides or technical documentation?

Yes. Our technical team can provide installation guides, torque specifications, and maintenance manuals for many of the parts we sell. Reach out after your purchase and we'll send the relevant documentation.

Can I get advice before I install a part?

Absolutely. We offer pre-installation technical support to help you understand the process, required tools, and any precautions specific to your engine. Contact us at sales@fuelpartsdepot.com.

What tools do I need to replace a diesel fuel injector?

This varies by engine type, but common tools include an injector puller/extractor, torque wrench, fuel line disconnect tools, and copper sealing washers. We also carry injector removal and installation tool kits — check our tools category for options.

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Orders & Shipping

How quickly will my order be dispatched?

Most orders are dispatched same day if placed before our daily cut-off. Orders placed after the cut-off or on weekends are dispatched the next business day.

Do you ship internationally?

Yes — we ship worldwide. International shipping times and costs vary by destination. All orders include full tracking so you can monitor your shipment from dispatch to delivery.

Is express shipping available?

Yes. Express and expedited shipping options are available at checkout for most destinations. If you need urgent delivery, select the express option or contact us and we'll do our best to accommodate your timeline.

How do I track my order?

Once your order is dispatched, you'll receive a shipping confirmation email with a tracking number. Use the link provided to monitor your delivery in real time.

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Returns & Warranty

What is your return policy?

If a part arrives damaged, is incorrect, or doesn't fit as described, we offer a straightforward return process. Contact us within the eligible return window with your order number and details, and our team will guide you through the next steps.

Do your parts come with a warranty?

Yes. Eligible products are backed by warranty support handled directly by our team. Warranty terms vary by product — check the individual product listing or contact us for details on a specific part.

What if I ordered the wrong part?

Contact us as soon as possible. If the item hasn't been installed and is in its original condition, we can arrange an exchange or return. We recommend confirming compatibility before installation — our team is always available to help with this before you order.

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Trade & Business Accounts

Do you offer trade pricing for workshops and fleet operators?

Yes. We offer bulk pricing, trade discounts, and priority stock allocation for diesel repair shops, garages, and fleet managers. Get in touch to open a Fuel Parts Depot Trade Account.

Can I set up a business account for repeat ordering?

Yes — trade account holders benefit from fast reordering, dedicated account support, and preferential pricing on high-demand parts. Contact us to get started.

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Still have questions? Our team is ready to help. Email us at sales@fuelpartsdepot.com or visit our Contact Us page.