Compatible With With The Following Vehicles: 2002 2003 2004 2005 2006 Compatible With Gmc Envoy Note: Vehicle Trim: 4.2L L6 256 Cid Misc. Notes 1: 02-06 Cv Tblzr/Gc E-Nvoy 4.2L L6 (6S) AltMisc. Notes 2: Cross Reference Information: Oem Product Number : 19151920Interchange Part Number: Ac Delco: 335-1091Ac Delco (Reman): 334-2527Aac Delco Gm Oe (Reman): 321-2127Arrowhead: Adr0307bosch: Al8805nbosch (Reman): Al8805xcompatible With Gmc: 19151920Lester: 8290Mpa (Reman): 8290603Rayloc: 13-4734Jremy: 91617Remy: 91652Remy (Reman): 22053Remy (Reman): 22056Usa (Reman): 8290Wai: 8290N Premium Aftermarket Replacement Parts Manufacturer Genera Corp: Manufacturered Starters / Alternators Are Checked And Tested For Fit, Form And Functionality While Adhering To Oe Specification. Built With Brand New Components From Inside To Outside. No Recycled Or Rebuilt Internal Components Are Used. Components Such As Bearings, Field Casing, Rotor, Rectifier, Stator, Diode, Regulators Are All 100Percent New. Products Built With 100Percent Brand New Components To Improve Overall Performance And Efficiency Of The Vehicle. Manufactured Under Iso 9001 Guidelines For Quality And Consistency Standard Guarantees And Warranties: 30-Days Satisfaction Guarantee 1-Year Limited Warranty Made To Last: This Item Is Constructed With High Quality Material And Rigorously Tested To Ensure Structural Strength And Integrity Please Confirm Oem # Or Partslink # Matches Exactly Before Purchasing, Otherwise, The Item Might Not Fit. To Ensure A Safe Delivery, Please Note Signature Might Be Required For $200+ Orders.