Spectra Premium Spectra Engine Oil Pan NSP31A Unit is designed to Original Equipment (OE) fit, form and function requirements Durable powder coating applied to exterior of oil pan for a long lasting rust free unit Washed and then sealed with an anti-corrosive spray on the interior for a rust free unit at installation Fit tested on the very same vehicle application for which it was developed verifying first-hand that the design fits properly and can be easily installed Engineered to stringent tolerances based on Spectra Premium's in-depth knowledge of the Original Equipment (OE) part it's designed to replace