Features: 1.OE Number: The referencing OE number of this AC air conditioner compressor bracket are 55099 A, LS 0278, which is molded and designed depend on the original data. 2.Fitment: The AC Compressor Bracket Kit is a replacement for R4 compressor from 1988?1995. Requires a 4 inch clutch and will not work with 5in truck or SUV Vortec Engines from 1999?2013. 3.Solid Construction: The bracket is made from high strength metal material with solid construction, ensuring durability and reliability in supporting your vehicle's AC compressor. 4.Ideal Replacement: Direct replacement installation, meets or exceeds OEM standards for the replacement of old and damaged one on original vehicles. 5.Easy Installation: While installation needs to be done professionally, this kit includes all the necessary components to make the process as easy and straightforward as possible. Specification: Item Type: AC Compressor Bracket Kit_x000D_ OE Number: 55099 A, LS 0278_x000D_ _x000D_ Material: Metal_x000D_ Fitment:_x000D_ Replacement for R4 Compressor 1988 to 1995_x000D_ Replacement for Chevy SUV truck engines 1999-2013 (for VORTEC engines)_x000D_ Fits for 4.8, 5.3, 5.7, 6.0, 6.2, or LSX blocks. (TRUCK OR SUV VORTEC ACCESSORY DRIVE)_x000D_ Applicable for 4 Inch Clutch, not applicable for 5 Inch Clutch_x000D_ Replacement for Chevy LS LQ LS2 LS3 LS6 1999-2013_x000D_ Replacement for CHEVY, SUV TRUCK ENGINES 1999-2013 (for VORTEC ENGINES) 4.8, 5.3, 5.7, 6.0, 6.2 OR LSX BLOCKS. (TRUCK OR SUV VORTEC ACCESSORY DRIVE)._x000D_ Designed to work with factory or aftermarket ac lines_x000D_ will NOT work with 5in Truck or SUV Vortec Engines 1999-2013. Note: Please double check the part number of your item, matching information is for reference only.