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The AEM Universal Fuel Pressure Regulator Rebuild Kit 25-392 is engineered to restore precision and reliability to your AEM fuel pressure regulator. This comprehensive kit includes a high-quality diaphragm, .250-inch return orifice, and durable O-ring, providing all necessary components to ensure consistent fuel pressure control and leak-free operation.
Designed for universal compatibility across AEM fuel pressure regulator models, the 25-392 rebuild kit is ideal for maintaining or refreshing high-performance fuel systems. Each component is crafted from fuel-resistant materials capable of withstanding elevated pressures and harsh automotive conditions, ensuring long-term durability and performance stability.
Installation is simple and efficient, allowing for quick regulator servicing without the need for complete replacement. By restoring proper pressure regulation, this kit helps maintain optimal fuel flow, engine performance, and efficiency. While not CARB approved, it offers a dependable service solution for street and track vehicles alike when used in non-regulated applications.
Features:
Includes diaphragm, .250" return orifice, and O-ring for complete regulator rebuild
Durable materials resist fuel degradation and withstand high-pressure environments
Restores fuel pressure stability and ensures consistent flow control
Compatible with a wide range of AEM universal fuel pressure regulators
Easy installation for quick maintenance and reliable sealing
Not CARB approved – intended for non-regulated or off-road use
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).
