Sea-Dog Replacement Cap 351393-1 for 351340 Gas Deck Fill, 316 Stainless Steel

The Sea-Dog 351393-1 is a replacement cap for the Sea-Dog 351340 gas hose deck fill. It is investment cast from corrosion-resistant 316 stainless steel, giving it long-term durability against saltwater exposure on deck. The cap operates without a deck plate key: easy-to-use tabs allow key-less opening and closing, and a cap attachment chain keeps the cap tethered to the deck fill body so it cannot be misplaced when open. The cap measures 1-11/16 inches in diameter with a 12 SAE thread pitch, matching the threaded neck of the 351340 deck fill. This is a cap-only replacement part; it does not include the deck fill body, mounting fasteners, or the flange gasket, which is sold separately as Sea-Dog part 351349. It ships at 0.236 pounds. Use this part to restore a worn, lost, or damaged cap on an existing 351340 installation without replacing the entire deck fill assembly.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 351393-1
• Product Name: Replacement Cap
• Material: Investment Cast 316 Stainless Steel
• Cap Diameter: 1-11/16 inches
• Thread Pitch: 12 SAE
• Operation: Key-less, tab-operated
• Cap Attachment: Attachment chain
• Product Dimensions: 4.44 x 2.69 x 1.69 inches
• Weight: 0.236 pounds
• UPC: 035514351539

Fitment

• Fits the Sea-Dog 351340 gas hose deck fill (1-1/2 inch hose, 3 inch bulk display size)

Frequently Asked Questions

What does the Sea-Dog 351393-1 replacement cap fit? The 351393-1 is a replacement cap for the Sea-Dog 351340 gas hose deck fill.

What is the cap made of? It is investment cast from 316 stainless steel for corrosion resistance in marine environments.

Do I need a deck plate key to open this cap? No. The 351393-1 cap uses easy-to-use tabs for key-less operation, so no deck plate key is required.

What is the diameter of this deck fill cap? The Sea-Dog 351393-1 cap has a diameter of 1-11/16 inches.

What thread pitch does the cap use? The 351393-1 cap uses a 12 SAE thread pitch to match the 351340 deck fill's threaded neck.

How much does the 351393-1 cap weigh? It weighs 0.236 pounds.

Is the gasket included with this cap? No. The flange gasket is sold separately as Sea-Dog part 351349 and is not included with the 351393-1 replacement cap.

Does the cap stay attached to the deck fill when open? Yes, the 351393-1 includes a cap attachment chain that keeps the cap tethered to the deck fill body.

What are the packaged dimensions of this part? The Sea-Dog 351393-1 measures 4.44 x 2.69 x 1.69 inches as packaged.

Is this a genuine Sea-Dog part? Yes, 351393-1 is the Sea-Dog manufacturer part number for this replacement cap.

Do I need to replace the whole deck fill if just the cap is worn? No, the Sea-Dog 351393-1 lets you replace just the cap on an existing 351340 gas deck fill without replacing the full assembly.

What is the UPC for this part? The UPC for the Sea-Dog 351393-1 replacement cap is 035514351539.