This Factory OEM Acura Aluminium Alloy 15 Spoke wheel comes stock on 2016 2017 2018 Acura RDX. The OEM part number(s) for the rim are 321AP1 42700TX4A82 TX4. This is a 5 lug wheel with a 18 inch diameter width of 7.5 inch and an offset of 45 mm. The finish on the wheel is Machined and Medium Charcoal Metallic. Year(s): 2016 2017 2018 Make(s) : Acura Model(s) : RDX Location : N/A Color : Machined and Medium Charcoal Metallic Condition : Remanufactured MFG part(s) : ALY71837U35 Wheel/Rim Size : 18 x 7.5 Offset : 45.00 Bolt Pattern :114.3 mm Diameter : 18 Style : 15 Spoke Lugs : 5 Material : Aluminium Alloy Interchange number :ALY71837U35 Other Part number : 71837 ALY71837U35 Not included : Lug Nuts Center caps Spoke inlays or Spoke inserts not included Weight : 25 Fitment Shipping & Handling Times Most items will ship within one business day but may take up to five business days on certain products. Hassle-Free Returns We will accept ALL products back in unused condition within 30 days of delivery for any reason with NO restocking fees. We cannot accept any items back which have been mounted or installed. The buyer is responsible for return shipping unless the item purchased does not match the product described on our listing.