Stainless Rain Cap For 5″ Diameter Straight Stack
Product Overview
Protect your vertical exhaust stack from water intrusion with this Stainless Rain Cap, specifically designed for 5″ diameter straight stacks. Built from highly polished 430 stainless steel, this rain cap resists corrosion and delivers a brilliant mirror finish. The counter-balanced design allows it to automatically open with exhaust pressure and securely close to block rain, snow, and debris when the engine is off—helping extend the life of your exhaust system and prevent internal rust or damage.
Key Features & Benefits
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Durable 430 Stainless Steel Construction: Strong, weather-resistant, and polished for a high-shine chrome-like appearance.
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Automatic Functionality: Opens with backpressure from exhaust gases and closes when idle to keep moisture out.
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Counter-Balanced Flap: Ensures smooth, reliable operation without sticking or unnecessary clatter.
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Designed for 5″ Diameter Stacks: Precision fit for most 5″ straight vertical exhaust stacks.
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Corrosion Resistant: Built to withstand exposure to rain, snow, and road elements.
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Warranty Coverage: Protected by a 1-year warranty for long-term confidence.
Expanded Benefit Section
This Stainless Rain Cap is an essential finishing touch for any 5″ vertical stack setup. The counter-balanced mechanism ensures that the flap responds effectively to engine pressure, opening fully during operation and closing tightly when parked. This protects your exhaust system from costly water damage and corrosion buildup, especially during wet or snowy conditions. The polished stainless finish pairs perfectly with chrome or stainless stacks, adding visual appeal and durability in one simple upgrade.
Vehicle Compatibility
Fits all vertical 5″ diameter straight exhaust stacks — ideal for semis, work trucks, and custom rigs.
Technical Specifications
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Material: 430 stainless steel
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Finish: Highly polished
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Fitment: 5″ diameter straight stack
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Operation: Counter-balanced, pressure-activated
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Item Number: 21326
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Warranty: 1 Year
What’s Included
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1x Stainless Rain Cap for 5″ Diameter Straight Stack
Warranty
1-Year Warranty covering material and workmanship defects.
Weather-Ready. Stack-Safe. Chrome-Polished.
Keep your 5″ straight stack protected from rain and debris with this reliable Stainless Steel Rain Cap — built for function, finished for show. Order now and give your exhaust system the protection it deserves.
