Our process is simple. You send us your injectors and we rebuild them, test them, and pay the return shipping back to you. Our typical turnaround time is 2-3 business days once we receive your injectors.

You receive a quality product, quality workmanship, and our guarantee that you will be happy with your experience.

Browse our store to find the injector you are interested in having rebuilt. When you find what you are looking for simply select your options, add the service to your cart, and process your payment.

We will receive confirmation of your purchase and send you instructions on what to do next, but we're going to add it here for reference.

Ensure you wipe all residual fluids from your injectors prior to packaging them. Please be sure to properly wrap and package your injectors for safe delivery. To avoid damage when shipping, we suggest wrapping each injector separately in a rag then placing it in a plastic grocery bag or Ziplock bags to avoid any leakage of fluids.

We recommend using a USPS Priority Mail box and be sure to insure your package. 

Use a medium flat rate box (11.25" x 8.75" x 6") for fast delivery. A medium flat rate box with $1000 insurance runs about $32.00 (USPS prices are subject to change).

You may send your injectors to us via USPS, UPS, or FedEx. Any method you choose is fine; however, we will ship your injectors back to you using UPS Ground.

We offer our services to the USA and Canada.  Additional shipping costs may apply for Canada orders. 

Send your injectors to:




  • Knowledgeable Staff

     We are a full time family owned and operated company, specializing in building most types of HEUI, Common Rail, and EUI diesel injectors using state of the art computer aided equipment. 

  • Our Quality Promise

    We're committed to providing a stress-free experience to both new and returning customers. Our shop sources only quality parts. All injectors are built in house, in the United States, by American workers.

  • We Have You Covered

    Our injectors are warranted to be free from defects in material and workmanship for the work that we perform. See our Warranty Page for complete details.

Diesel Fuel Injector Testing Powerstroke CAT Caterpillar

HEUI Injector Testing

Our quality parts and excellent workmanship is tested on this HEUI test bench. This bench tests injectors such as Powerstroke 7.3L, Powerstroke 6.0L, Caterpillar 3126, Caterpillar C7/C9, and many more!

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Diesel Fuel Injector Testing Duramax LB7 LLY LBZ LMM Cummins 5.9 and 6.7 Powerstroke 6.4 and 6.7

Common Rail Testing

Our quality parts and excellent workmanship is tested on this Common Rail test bench. This test bench tests injectors such as Duramax LB7, Duramax LLY, Cummins 5.9L, Cummins 6.7L, and many more!

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Looking for something special? Let us know!

At Diesel Injectors So Cal, we appreciate your feedback and are happy to assist whenever possible. We pride ourselves on providing outstanding customer service to ensure you will look nowhere else when it comes to your diesel injector needs.

Diesel Injectors So Cal

331 Corporate Wood Dr, Suite C-2, Magnolia, Texas 77354, United States

Contact us by phone at 909-223-2059 or 832-521-3625. We are available only during normal business hours.


Monday - Friday: 9am - 5pm

Saturday: Closed

Sunday: Closed

All times are Central Standard Time