Overview

The Perko 1313DP0CHR is a gas deck fill for 1-1/2 inch hose, with a 3-1/8 inch flange outside diameter, a 1-7/8 inch neck, and a 2-1/8 inch mounting hole diameter.

It uses a chrome plated zinc alloy flange with a black polymer flange and cap, so it gives you a clean deck finish while keeping the cap tethered during fueling. The assembly includes a grounding screw, cap retainer, and gasket, and it is marked for gas.

This is a non-EPA style fill. It meets U.S.C.G. safety standards dated January 31, 1977 for gasoline fuel systems under 33 CFR 183, and it does not meet 40 CFR 1060 Subpart B emissions requirements.

Key features

• Fits 1-1/2 inch fuel fill hose, which is a common size on many older gasoline boat installations
• 3-1/8 inch flange outside diameter, 2-1/8 inch mounting hole diameter, and 1-7/8 inch neck for checking deck cutout and below-deck clearance before replacement
• Chrome plated zinc alloy flange with black polymer flange and cap for a chrome look on deck with a black trim ring
• Tethered cap helps keep the cap attached during refueling
• Grounding screw, cap retainer, and gasket are included
• Uses #6 mounting screws, which matters when matching an existing deck pattern or planning a new install

Installation and fit

This fill is a straightforward replacement when your boat already uses 1-1/2 inch fill hose and the deck cutout is 2-1/8 inches. The 3-1/8 inch flange gives enough coverage around the opening, and the 1-7/8 inch neck is worth checking against deck thickness, hose bend radius, and access below the deck before ordering.

The grounding screw matters on gasoline systems because the fill neck needs proper bonding during refueling. For repowers, restorations, and deck hardware refreshes, this part makes the most sense where the hose size, hole size, and mounting approach already line up with the existing system.

Compatibility and use

This part suits gasoline fuel fill points on boats that use 1-1/2 inch hose, including many runabouts, center consoles, skiffs, and small cruisers. It is a good match for replacing a worn or corroded gas fill on an older setup where the original dimensions are still the right fit.

If your fuel system needs a fill that meets evaporative emissions requirements under 40 CFR 1060 Subpart B, this is not the right style to use. For replacement work, that distinction is worth checking before you cut the deck or reconnect the hose.