Attwood Black P-Trap Fuel Tank Vent Replacement Cover, Fits Vent 1670

The Attwood 911526-1 is a replacement cover for standard mount P-trap fuel tank vents, designed as a direct fit for vent model 1670. It restores proper function to your boat's fuel tank ventilation system by letting air escape freely from the tank as you refuel, which prevents backpressure and the fuel spit-back that can happen when a vent is clogged, cracked, or missing its cover.

Beyond simple airflow, the cover's P-trap design blocks water, sea spray, and washdown spray from entering the fuel tank, keeping contaminants out while the vent continues to breathe. Because the P-trap geometry already manages water intrusion, installing this cover lets you eliminate the bulky anti-siphon loop that standard mount vent lines typically require in the hose run, simplifying the installation.

The cover is molded in black plastic built to withstand the marine environment, resisting UV exposure, chemical contact, and saltwater spray over time. It is sized as a single replacement component, not a full vent assembly, so it is intended for boat owners replacing a worn, cracked, or missing cover on an existing standard mount P-trap vent rather than installing a new vent fitting.

Specifications

• Brand: Attwood
• Manufacturer Part Number: 911526-1
• Compatible Vent Model: 1670
• Color: Black
• Material: Plastic
• Item Dimensions: 3 x 2.25 x 1.25 inches
• Weight: 0.05 pounds
• Number of Items: 1

Fitment

• Attwood standard mount P-trap fuel tank vent, model 1670

Frequently Asked Questions

What does the Attwood 911526-1 fit? The Attwood 911526-1 is a replacement cover made for standard mount P-trap fuel tank vents, specifically vent model 1670.

Does this cover stop water from entering the fuel tank? Yes, the 911526-1 cover uses a P-trap design that blocks water, sea spray, and washdown spray from entering the fuel tank while still allowing the tank to vent air freely.

Do I still need an anti-siphon loop with this vent cover installed? No, the P-trap design of the Attwood 911526-1 is built to eliminate the need for a separate anti-siphon loop in the vent hose on a standard mount setup.

What is this vent cover made of? The 911526-1 is molded from black plastic that resists UV exposure, chemical contact, and saltwater spray.

What color is the Attwood 911526-1 vent cover? It is black, matching Attwood's standard mount P-trap vent hardware.

How many covers come in one package? One Attwood 911526-1 vent cover is included per package.

Is the 911526-1 a full vent fitting or just the cover? It is a replacement cover component for an existing standard mount P-trap vent (vent model 1670), not a complete new vent fitting.

What are the dimensions of this vent cover? The Attwood 911526-1 measures 3 x 2.25 x 1.25 inches.

How much does the 911526-1 vent cover weigh? It weighs 0.05 pounds.

Why would I replace my P-trap vent cover? A cracked, worn, or missing cover on a vent 1670 fuel tank vent can let water in or restrict airflow, so the 911526-1 restores the vent's water-blocking and free-venting function.