Have Questions?
Professional-grade parts used trackside.
Expert help during business hours.
Encrypted checkout & trusted payments.
Orders ship quickly from regional warehouses.
The Walbro In-Tank Fuel Filter (Part Number 400-791) is a critical component designed to ensure clean fuel delivery for your vehicle's fuel pump assembly. This high-quality filter is engineered to maintain optimal fuel flow while preventing contaminants from reaching your engine, thereby enhancing performance and longevity. Its compact design allows for straightforward installation, making it compatible with a wide range of in-tank fuel pump modules. Crafted with durable materials, this filter provides reliable filtration throughout its service life and supports your vehicle’s fuel system integrity.
Walbro's in-tank fuel filter features a precise fit and efficient operation, helping to maintain consistent fuel pressure and flow. It works seamlessly with Walbro's line of fuel pumps and modules, offering a dependable solution for high-performance and everyday vehicles. The filter's construction ensures it withstands the challenging conditions within the fuel tank, including exposure to fuel additives and varying temperatures. Proper filtration not only protects your engine but also extends the lifespan of your fuel pump and related components, reducing maintenance needs over time.
Designed for versatility, this filter is suitable for custom installation scenarios where a reliable fuel filtration solution is required. It is compliant with Prop 65 standards, ensuring safety and environmental considerations are met. Whether upgrading an existing fuel system or installing a new one, the Walbro In-Tank Fuel Filter for part number 400-791 provides the dependable filtration performance necessary for optimal vehicle operation.
Features:
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
