Warranty Policy

– Engine Kits (Heavy Duty Trucks) Detroit, Cummins, Caterpillar, 2-years warranty, includes parts and labor.

– Engine Kits for Dodge, Bobcat, GMC/Chevy, Isuzu, Duramax, Hyundai, International, Navistar, John Deere, Kubota, Nissan, Toyota, Perkins, Waukesha 1-year warranty for brand new parts, does not include labor.

– Used parts, 60 calendar days starting from the day delivery company confirms you have receive the part(s).

– Rebuilt parts (Heads, Turbos, Injectors) 6-months warranty.

Limited Warranty* Policy

The limited warranty is 6-months on all electronic injectors, turbochargers, electronic actuators and fuel pumps. This warranty does not apply to repairs or parts and labor items. This warranty does not apply when the item has been subjected to abuse, improper installation, operator negligence, overloading, misuse, insufficient lubrication, and contamination, poor maintenance or accidents as determined by Rudy’s Diesel Engine Parts. Furthermore, unauthorized repair of the item voids this warranty. The warranty does not cover troubleshooting or diagnostic time, mechanics mileage, towing, downtime, loss of profit, cargo damage, or any other indirect items.


Warranties are granted to the original purchaser of the unit and are neither transferable nor redeemable. Proof of purchase and identification may be required prior to the approval of a warranty. Rudy’s Diesel Engine Parts products are warranted to be free of defects in materials or workmanship in accordance to the following:

  • A period of 6-months will be the duration of supplier warranty to distributor for parts listed herein. Warranty effective date is the date of shipment of the component. Proof of purchase is required upon return of the component. If proof is not supplied, unit date code will be used. If the suspect part is found to be defective, it will be credited or replaced at the option of Rudy’s Diesel Engine Parts.
  • Rudy’s Diesel Engine Parts assumes no liability and will not incur the costs of labor, technical fees, towing, rental/courtesy vehicles, etc. that relate to the purchase and installation of units purchased.

Warranty Coverage

Rudy’s Diesel Engine Parts Limited Warranty covers and includes all defective stock (material and/or workmanship). This warranty does not apply to defects caused by, but not limited to, misdiagnosis, incorrect application, improper installation, misuse, collisions, or negligence.

Warranty Requirements

  • No contaminants of any kind including, but not limited to, non-diesel fuels, gasoline, any substance that causes staining, corrosion, foreign debris, or rust.
  • No signs of tampering, modification, abuse, or non-original parts.
  • No signs of performance related damage (burnt tips, altered parts, etc)
  • Must not be due to improper application, installation, or operation.

To send in your product for warranty:

  • Return the component in an appropriately sized box along with sufficient packaging material (such as crumpled newspaper, cardboard, or Styrofoam). Place the return label in a visible location on the outside of the box.

Under no circumstances will Rudy’s Diesel Engine Parts be responsible for any incidental or consequential damages which may result from the breach of any expressed or implied warranty, including any liability for loss of use or diminished value. Rudy’s Diesel Engine Parts reserves the right to alter or modify this policy at any time. Customer notification of any changes to the warranty policy will occur before implementation of revised policy.