Frequently Asked Questions

Shipping and Returns Policy

Holders Diesel Performance fuel injectors are shipped via UPS only. All products will ship via UPS ground unless expedited shipping is requested at the time of sale. No returns or refunds will be made after 30 days of sale. Most of our products are built to order and will usually ship within 24-48 hours of sale as long as we are not waiting for your cores.  Any returned products are subject to a 25% restocking fee.

Fuel Injector Warranty Policy

Any Holders Diesel fuel injector warranty item must be sent in to Holders Diesel Performance LLC for item inspection.  We do not send replacement injectors out for warranty items prior to inspection of suspected failed item. The item must be sent in for inspection, repair or replacement and will be repaired or replaced at the discretion of Holders Diesel Performance LLC. Holders Diesel Performance LLC is responsible for the fuel injectors it supplies ONLY; we claim no responsibility for any other parts. 

Warranty is non transferable and only valid for the original purchaser. Warranty can be voided if there are any signs of the following:


-Fuel contamination

-Oil contamination

-Low Fuel Pressure

-Neglect; such as dropping injectors or improper installation

Holders Diesel Performance LLC is not responsible for any labor or shipping charges.  We warranty our parts only, not installation.  If parts are sent in for inspection and no problems are found and the parts pass all tests, the customer is subject to a cleaning, testing, and re sealing fee of $35.00 per fuel injector.

Below are our warranty terms:  

Premium Reman 6.0 Power Stroke fuel injectors (any size)- 3 year/100k miles

Basic 6.0 Power Stroke rebuild/modified fuel injector- 6 month/unlimited mileage

Basic 7.3 Power Stroke rebuild/modified fuel injectors- 1 year/unlimited mileage

Premium Reman 7.3 Power Stroke Fuel Injectors (any size)-2 year/100k mile


All 6.0 and 7.3 Holder's Premium injector cores must be returned directly back to us within 30 days of delivery. The package of cores must include a core form with your order number and contact information on it.

All S&S products that require a core must be returned directly to them within 30 days of delivery. These cores must be sent back in their same packaging with the core tag on the box.

If you paid a core charge, please allow bank processing time for it to show up in your account. We have the right to refuse refunding your core charge if over the 30 day policy.