The DTech DF4TZ-9F538-A Injector Sleeve is for use in all Ford 7.3L Power Stroke engines. The sleeves can fail due to thermal fatigue and fuel contamination.
All DTech products are warranted to be free from defects in material or workmanship for a period of 12 months or 100,000 miles from date of original product installation, whichever occurs first. We will replace any part that fails during the warranty period and is determined to be defective in material or workmanship. If defective product is replaced it will be warranted for either the remainder of the original warranty period or 120 days, whichever is longer. We will also pay standard labor rates and times for product removal and reinstallation.