If the factory-stamped nut on your IPR solenoid keeps coming loose, this IPR retainer from Diesels and Dirtbags is designed to give it a more secure hold. Instead of relying on the thin factory-style retaining nut alone, this setup uses a reduced sleeve to allow full thread engagement with a proper nut, helping keep the IPR solenoid secured in place. The retainer includes a set screw and jam nut for double-locking securement. The jam nut should be tightened before the set screw, creating a secondary lock that helps prevent the retainer from backing off during use. Each IPR retainer is custom-made by Diesels and Dirtbags and typically requires a 2-3 week processing time before shipment. Please verify fitment before ordering. Please Note: Please review the product description and verify fitment manually before ordering, and call us with any questions!