Have Questions?
Professional-grade parts used trackside.
Expert help during business hours.
Encrypted checkout & trusted payments.
Orders ship quickly from regional warehouses.
The Aeromotive Universal Bypass Regulator Part Number AER13301 is a versatile and high-performance fuel pressure regulator designed for both street and strip applications. This regulator features a dual-purpose design suitable for EFI or carbureted systems, providing reliable and steady fuel pressure control across a wide range of setups. Its adjustable base pressure from 3 to 20 PSI with the standard spring enables precise tuning for most fuel systems, while the high-pressure spring allows regulation from 20 to 60 PSI for more demanding applications. The aeromotive bypass design ensures full flow and maintains rock-steady fuel pressure, which is critical for optimal engine performance and safety. Capable of regulating any fuel pump between 100 and 250 GPH, this regulator responds dynamically to boost pressure, with fuel pressure rising on a 1:1 ratio when referencing boost, making it ideal for forced induction systems. All ports are 3/8 inch NPT, with one inlet, three outlets on the main body, and a return port on the bottom, facilitating flexible installation options. The regulator requires a return line from the bottom to the top of the tank, ensuring proper fuel circulation and pressure regulation. Constructed by Aeromotive, this universal bypass regulator offers superior fuel management for performance enthusiasts seeking precise control and reliable operation in various racing or street scenarios. Its robust design and adjustable features make it suitable for a wide array of vehicle setups, ensuring optimal fuel delivery and engine response at all times.
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).
