Genuine Volvo Fuel Water Separator D11/D13 | PN 21380475

You have 30 calendar days to return an item from the date you received it. To be eligible for return all parts must meet the following conditions:
• The item must be new, unused, and uninstalled;
• The product must be in salable condition, with no signs of installation (e.g., grease, scratches, or missing components);
• Original packaging is required, especially for branded parts;
• Any item that has been installed, modified, or misused is not eligible for return;
• Unacceptable returns may be shipped back to the customer upon request, at the customer's expense;
• Your item needs to have the receipt or proof of purchase.
We have a Restocking Fee which applies for return items with damaged package. Restocking Fee is 25%-50% of initial purchase.
• Do not tape the original packaging box — Restocking Fee will apply;
• Do not stick any shipping label/sticker on the original packaging box — Restocking Fee will apply;
• We recommend using stretch film to wrap the original packaging box. Use an additional shipping box or envelope to return the item.
You will be responsible for paying your own shipping costs for returning your item. Shipping costs are nonrefundable.

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Express Shipping available at checkout (1-2 business days)
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International shipping available to Canada and EU — rates calculated at checkout.
All orders processed within 1 business day (excluding Sunday and holidays).

The Genuine Volvo Fuel/Water Separator (21380475) protects the fuel system of Volvo D11 and D13 engines by removing water and contaminants from diesel fuel before they reach the injectors. Water in diesel causes corrosion, injector wear, and power loss, so a properly functioning separator is essential for engine longevity. As the factory-original component, it guarantees correct fit, flow, and filtration efficiency.

What does the fuel/water separator 21380475 do? It separates water and particulate contaminants from diesel fuel before the fuel reaches the high-pressure injection system, protecting injectors and the fuel pump from damage.

Which engines does it fit? It fits Volvo D11 and D13 engines used in Volvo VN, VNL, VNR, and VHD trucks.

Why choose the genuine Volvo separator over aftermarket? The genuine Volvo unit is engineered and validated by Volvo to factory filtration and flow specifications, ensuring correct water separation efficiency and a guaranteed seal.

What are the symptoms of a clogged fuel/water separator? Loss of power, hard starting, rough idle, water-in-fuel warning lights, and reduced fuel economy.

How often should it be replaced? Replace at the manufacturer's recommended service interval or sooner if you see a water-in-fuel warning or fuel-related performance loss. This unit ships from our Chicago, IL warehouse.