Feature:1. Fitment: Replacement for Ram 1500 V8 5.7L 20032006; Replacement for Ram 2500 V8 5.7L 20032006; Replacement for Ram 3500 V8 5.7L 20032006.2. OE Number: Replacing part number for reference are F00M990434, F00M990405. Please carefully check your OE number before ordering.3. 2pcs Bearing: The kit includes 2pcs ball bearings, size of the small bearing is 15x35x13mm/0.59x1.38x0.51in, size of big bearing is 17x52x16mm/0.67x2.05x0.63in.4. Stable Construction: Alternator ball bearings are made of premium high strength metal material, rugged and durable, not easy to crack.5. Direct Replacement: OE standard, built to original specifications and standard, alternator ball bearing is great aftermarket replacement to replace the old one.Specification:Item Type: Alternator BearingMaterial: MetalOE: F00M990434, F00M990405Small Bearing Size: Approx. 15x35x13mm/0.59x1.38x0.51inBig Bearing Size: Approx. 17x52x16mm/0.67x2.05x0.63inFitment:Replacement for Durango V8 5.7L 2004 Replacement for Ram 1500 V8 5.7L 2003-2006 Replacement for Ram 2500 V8 5.7L 2003-2006 Replacement for Ram 3500 V8 5.7L 2003-2006 Replacement for Ram 2500 L6 5.9L 2003-2009Replacement for Ram 3500 L6 5.9L 2003-2009Replacement for Ram 4000 L6 5.9L 2005-2009.Package List:2 x BearingNote: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!