T7Design Bulkhead Hose Adaptor Backing Plate Kit - Option 1

The T7Design Bulkhead Hose Adaptor Backing Plate Kit secures bulkhead hose adaptors to a firewall while creating a reliable waterproof seal. It uses interlocking hexagonal lock plates, dual O-ring sealing and a rear load spreader plate to maintain consistent clamping pressure across thin or reinforced panels.The following features explain how the kit secures and seals your bulkhead installation:Hexagonal Interlocking Lock Plates: The precision-cut hexagonal aperture is designed to match the flats on T7Design bulkhead hose adaptors, mechanically preventing rotation while you tighten the rear locknut which allows you to achieve correct torque without the adaptor spinning and ensures a secure and stable installation.Dual O-Ring Sealing System: O-rings are positioned at both the front and rear faces of the adaptor interface to create a compression-based seal against the panel surface, eliminating the need for additional sealant or gaskets and providing a consistent watertight barrier once tightened.Rear Load Spreader Plate: The backing plate distributes clamping force evenly across a wider surface area on the reverse side of the bulkhead, maintaining uniform O-ring compression on thin or lightweight panels and ensuring a dependable seal without panel distortion.Chamfered Edge Profiling: All plate edges are chamfered to remove sharp transitions which reduces the risk of paint damage during installation and helps prevent stress points that could lead to cracking around the mounting hole.Rumbled Surface Finish on Back Plate: The rear plate is rumbled during manufacture to smooth surface imperfections and soften edges, protecting painted or powder-coated panels from marking while maintaining a clean mounting interface.Achieve a stable, sealed bulkhead hose installation that resists leaks and movement under vibration. The interlocking design and controlled load distribution help secure fittings correctly on both reinforced and thinner panels. This kit makes a practical addition to your cooling or fluid transfer setup where a clean, watertight bulkhead pass-through is required.Included In The Bulkhead Hose Adaptor Backing Plate Kit: Bulkhead fitting O-rings, Billet lock plate, Bulkhead plate O-ring, Aluminium backing plate.Available Options:Option 1: Double In-Line Kit - Accepts 2 x bulkhead hose adaptorsOption 2: Quad In-Line Kit - Accepts 4 x bulkhead hose adaptors in a rowOption 2: Quad Sqaure Kit - Accepts 4 x bulkhead adaptors (2 up, 2 down)Compatible bulkead hose adaptors for use with this kit can be found here.