4″ Flare Adapter
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4″ Flare Adapter designed to mate with our 4″ Marmon Bead Adapter (41967-L). Available in stainless steel or aluminized steel tubing.
| Attributes | Value |
|---|---|
| Product Type | |
| Material | |
| Diameter | |
| Length |
3" |
Product Description
This 4" Flare Adapter is the male half of a Marmon Flange joint, sized for the higher exhaust flow of Class 8 trucks. The 20° flare is formed for an accurate seat, and it's available in 304 stainless steel for maximum corrosion resistance or aluminized steel tubing for a more economical rebuild.
It's designed to work seamlessly with our 4" Marmon Bead Adapter (41967-L). A V-band clamp pulls the pair into a tight, leak-free joint that's still easy to service down the road.
- Diameter: 4"
- Length: 3"
- Flare angle: 20°
- Material: Stainless steel or aluminized steel
- Pairs with: 4" Marmon Bead Adapter (41967-L)
A common fit for semi-truck exhaust systems, whether you're replacing a worn Marmon flare or building out a custom stack.

