Specification: Item Type: Transfer Case Chain Material: Stainless Steel OE: HV091, HV523, 2512800800, 2512800900, 251 280 09 00 Fitment: Replacement for ML-GL-R Series 2003-On 1.50in Wide / 42 Links / 3/8in Pitch / Rocker pin design FITS for MAGNA STEYR (SINGLE SPEED) EQUIPPED Replacement for ML CLASS W163 2003+ W164 2005+ Replacement for ML320 03, 07-09 Replacement for ML350 03-11 Replacement for ML450 10-11 Replacement for ML500 03-07 Replacement for ML550 08-11 Replacement for ML55 (AMG) 03 Replacement for ML63 (AMG) 07+ DOES NOT Replacement for ML MODELS NON-U.S. WITH OFF-ROAD PRO PACKAGE 2-SPEED TRANSFER CASE FITS for STEYR (SINGLE SPEED) EQUIPPED Replacement for X164 GL CLASS 2006-2012: Replacement for GL320 06-12 Replacement for GL350 06-12 Replacement for GL450 06-12 Replacement for GL550 06-12 DOES NOT Replacement for GL MODELS NON-U.S. WITH OFF-ROAD PRO PACKAGE 2-SPEED TRANSFER CASE FITS for MAGNA STEYR (SINGLE SPEED) EQUIPPED Replacement for W251 R CLASS: R320, R350, R550 2007-2011 Package List: 1 x Transfer Case Chain Note: 1. Please double check the part number of your item, matching information is for reference only. 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!