Current Turnaround Times

Standard Service – 3-4 Business Days

Expedited Service – 1 Business Day

Last Updated 11/8/25 at 12:55pm

Shipping Instructions

Thank you for choosing Injector Rx! To help us serve you quickly and efficiently, please follow the instructions below when sending your injectors.

Please see the blue bar above the menu for current turnaround times.

How to prepare your injectors for shipping:

Include your order form or written customer information.
Please be sure to include the completed order form inside your package. If you do not have a printer, please write out your name, address, phone number, and email on a piece of paper and include it in the package.

Leave O-rings and spacers attached.
This ensures accurate matching during reassembly.

Dry and bag each injector.
Place each injector in a separate plastic bag to prevent gasoline odors and cross-contamination. For easier reinstallation, you may label each bag with the cylinder number.

Use sturdy packaging.
Protect your injectors by using sufficient padding and a durable box.

Shipping Address

Injector Rx
9627 Southwest Fwy

Houston, TX 77074

Local customers:
Drop off injectors
Monday–Friday, 8:00 AM – 4:00 PM.

Call (281) 738-3635 to schedule, or just come by!

(We’re located behind AutoMall 59 at Highway 59 and Bissonnet.)

Return Shipping Options

Flat rate options are used by default unless another method is requested.

  • $10.00 Flat Rate Priority Mail (Up to 8 injectors, no rails) 
  • $18.00 Flat Rate Priority Mail (More than 8 injectors, no rails)
  • Express Mail via USPS: $45 (up to 8 injectors)
  • Other Carriers (FedEx, UPS): Available at current market rates

International Shipping: 

We offer international return shipping based on your country and preferred service. Please contact us for a quote.


Insurance:

$1.85 will be added for every $100 of insurance you request.
Please indicate the desired insurance amount on your information sheet.

Important: Injector Rx is not responsible for delays, loss, or damage caused by shipping carriers. Insurance is highly recommended.

Payment Types

We accept:

  • Visa
  • MasterCard
  • Discover
  • American Express
  • PayPal

❗ Checks are not accepted.

Paying by PayPal

Please include your PayPal email address and a phone number. We will email you a payment request once your service is complete.

Paying by Credit Card

You may include your credit card information and signed authorization on your information sheet.
Prefer not to? No problem — just sign the authorization section and we’ll call you for payment when your injectors are ready.

Order Forms

Questions?

Call us today at 1-800-381-2065 or (281) 738-3635 for more information. You can also email us at [email protected]. Let us help you clean your automotive fuel injectors the right and only guaranteed way!