This gas spring lift strut set provides reliable, controlled opening and holdopen support for rear tailgates, trunks, and boots on compatible Seitz, Dometic, and Heki installations. Supplied as a 1 pair set, model G4121401330AU11AB0740N, it is designed to worn or missing rear tailgate gas springs and restore smooth, safe operation. Key benefits Smooth lift with holdopen capability for rear lids, reducing effort and preventing sudden closure. Balanced, reliable support suitable for frequent use on leisure vehicles and trailers. Compatibility with Seitz, Dometic, and Heki fittings to suit common caravan and motorhome configurations. Includes a complete 2piece pair to ensure even operation on paired tailgate mechanisms. Key attributes Model: G4121401330AU11AB0740N Quantity: 1 pair Type: Gas spring lift strut Application: Rear tailgate, trunk, boot Compatibility: For Seitz, For Dometic, For Heki Size and material: Not specified in the listing Performance and reliability Provides controlled lifting force to assist opening of the rear lid and to hold it open as needed. Designed to deliver dependable operation across ordinary use in caravans, motorhomes, and suitable vehicles. Use cases Replacement for worn or failed rear tailgate gas springs on caravans or motorhomes using Seitz, Dometic, or Heki components. Retrofit for trunk or boot lids in leisure vehicles to restore smooth, safe opening and reliable holdopen support. Replacement pair for balanced operation of dual lift struts on compatible tailgate systems. Compatibility overview Works with Seitz, Dometic, and Heki installations, matching the model designation G4121401330AU11AB0740N and the 1 pair configuration for balanced dualstrut support.