Thru-Hull Exhaust Skin Fitting, 24mm 316 Stainless Steel

24mm diesel heater exhaust skin fitting helps route exhaust gases cleanly through a hull or panel for steadier heater operation and a neater install. Built from 316 stainless steel for corrosion and heat resistance, this straight thru-hull exhaust outlet is designed for common diesel heater setups and includes gaskets and hardware to help reduce leaks and protect surrounding surfaces.

• Fits most 2KW, 5KW, and 8KW diesel heaters; confirm outlet size before purchase


• Delivers a 24mm (0.94") outlet for efficient exhaust discharge and smoother flow


• Includes multi-layer sealing with 2 silicone gaskets plus 1 stainless gasket to help reduce leakage


• Protects panels by adding spacing between hot exhaust piping and walls to help prevent heat damage


• Installs easily with included screws and nuts for a secure thru-hull/panel mount

Use this straight exhaust skin fitting when you need a durable, corrosion-resistant outlet for a diesel heater exhaust line—ideal for marine and automotive applications where vibration, moisture, and heat are common. The included gaskets are designed to support a tighter seal and cleaner pass-through, while the compact footprint keeps your setup tidy. If you’re replacing a worn fitting or planning a fresh heater install, grab yours today and finish the exhaust routing with confidence.

• Outlet diameter: 24 mm / 0.94 in


• Overall size: 80 x 92 mm / 3.15 x 3.62 in


• Material: 316 stainless steel


• Net weight: 0.34 kg / 0.75 lb


• In the box: 1 straight exhaust head, 2 silicone gaskets, 1 stainless gasket, screws, nuts