3 Inch 304 Stainless Steel Exhaust Rain Cap with Adjustable Clamp for Truck Stack

Exhaust stacks rarely stay at their original diameter. A 3 inch pipe that has been clamped three or four times, or hammered back into shape after a knock, typically ends up somewhere between 74 and 80 mm. A fixed collar will then either fail to fit or fail to grip. This 3 inch 304 stainless steel exhaust rain cap uses an adjustable clamp with an 8 mm range, so a single part number covers every worn 3 inch stack in a fleet.

• 8 mm adjustment range: 74 to 80 mm covers new, worn and re-shaped stacks with a single part number.
• Captive M8 stainless screw: the screw cannot be lost during fitting, and the stainless thread does not gall or rust in service.
• Reinforced support for improved anti-downdraught performance.
• Burr-free rolled edge for safer installation.
• Adjustable clamp base for multi-size pipe fit.
• Solid integrated welding, sturdy for long outdoor service.

This SS304 stainless steel exhaust rain cap, also known as an exhaust flapper rain cap, is specially designed for vertical exhaust stacks of heavy-duty machinery and off-road vehicles. It is widely used on large farm tractors, agricultural harvesters, heavy trucks, excavators, loaders, bulldozers, engineering construction machinery, stationary diesel generators and other industrial equipment.

The counterweight flap automatically opens under exhaust pressure when the engine runs and closes tightly once the engine shuts down, effectively blocking rain, snow, dust, leaves and debris from entering the exhaust pipe and muffler. It prevents engine cylinder rust, water backflow damage and exhaust system corrosion, making it perfectly suited to farmland, construction sites, mining yards and other harsh outdoor working environments. This heavy-duty tractor exhaust weather cap works well for agricultural, construction and mining fleets — a must-have exhaust stack accessory for all kinds of large mechanical vehicles.

Bagged individually, and packed 25–50 pcs per carton.

Email: export@ypmachinery.com

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