Walker 3" Inlet Exhaust Rain Cap for Vertical Stacks — 3" ID, aluminized or chrome finish, vibration-dampening option

This rain cap is built for vertical exhaust applications on trucks and heavy equipment. Offered in aluminized and chrome finishes (plus a silent option), the Walker 35618 snaps onto a 3-inch inner-diameter exhaust pipe to block moisture and foreign objects while preserving exhaust flow. It’s designed to work with Walker Truck Staxx and other vertical stacks that accept a universal-fit cap, and Walker provides accessory parts to complete exhaust repairs professionally.

How does this rain cap prevent water and debris from entering a vertical exhaust?

The Walker 35618 uses a downward-facing cover and a fitted inlet collar to shield the open pipe while allowing exhaust gases to exit freely. Its shape deflects rain and snow, and the secure fit minimizes the chance of birds or large particles nesting inside the stack.

• Downward-facing hood design that redirects precipitation away from the pipe opening
• 3" inlet sized for a tight, slip-on connection to standard vertical stacks
• Solid barrier that reduces entry of leaves, insects, and small debris

What materials and finishes are available, and why do they matter?

Walker offers the 35618 in aluminized and chrome finishes plus a silent version intended to reduce vibration noise. Aluminized steel balances corrosion resistance and cost; chrome provides a polished appearance and extra surface protection; the silent style includes features to dampen rattle on rough roads.

• Aluminized finish resists heat and rust for long service life
• Chrome option improves appearance and surface durability
• Silent variant reduces vibration and rattling on vertical stacks

Will this cap fit my vehicle's exhaust system?

The 35618 is a universal-style rain cap built to fit 3" inlet (ID) exhaust pipes, but proper fit depends on your stack geometry and exact pipe dimensions. Always measure the inside diameter of your vertical pipe and confirm compatibility; check any product fitment tools or vehicle-specific notes before purchasing.

• Designed for 3" ID inlet—measure your pipe to confirm match
• Compatible with Walker Truck Staxx and many aftermarket vertical stacks
• Use vehicle make, model, year and engine details when checking fitment

How does this part help with exhaust repairs and maintenance?

As an accessory, the rain cap protects the stack opening after repair or replacement, preventing contaminants from entering and reducing the risk of corrosion or blockages. Walker supplies complementary accessories so you can finish an exhaust job with matching components and correct-fit parts.

• Protects repaired or replaced stacks from moisture and debris
• Works with other Walker accessories for complete exhaust jobs
• Simple installation means quick service bay or field replacement

Who is this for? The Walker Heavy Duty 35618 is suited for truck fleet managers, heavy-equipment technicians and do-it-yourself mechanics who need a durable, easy-to-install rain cap for vertical exhaust stacks. It’s ideal when you want corrosion-resistant protection, a clean finished appearance, and reliable prevention of moisture and foreign-object entry. Before ordering, verify your stack’s 3" inner diameter and consider the finish or silent option that best matches your vehicle's needs and environment.