OE QUALITY AT A REASONABLE PRICE!!!! This is a Delphi reman "Electronic Unit Injector" for the 1999-2002 DDEC IV 12.7L, 435-500 HP Detroit Series 60 engine. Delphi, one of the world's largest OE fuel system manufacturers, remans these injectors in their ISO 9001:2000 certified facility, assuring customers of a superior quality product. For reference purposes, the Detroit part number for this injector is R5237650. Warranty Policy: Delphi Series 60 EUI's are warranted to be free from defects in materials or workmanship for a period of 12 months from the date of sale. Injectors diagnosed as "Failed" within the first 90 days, will be automatically accepted under a "NO HASSLE POLICY" provided the injector is intact as it was removed from the engine and there are no obvious external signs of customer abuse. CORE CHARGE: You will be charged $250 per injector at the time of purchase, if the core is returned within 30 days your card will be credited. Feel free to contact our parts department at 800-891-8038 with any questions.