40. Can I use OEM Replacement or Upgrade Parts and Equivalants?

YES YOU CAN - most original OEM parts, weatherstrips, kerf seals, locks, latches, tilt latches, hinges, slide tracks and crank operators are normally produced to original OEM manufacturer specs or supplied by another source to the original assmebler or manufacturer. Door and Window weatherstripping parts from a trusted supplier is most likely to meet all "original" specs and will align properly to your windows and doors.