Perko Diesel Pipe Deck Fill, Cast Bronze, Key and O-Ring Included

Overview

The Perko Fig. 0528 is a cast bronze diesel deck fill for boats using 1-1/2 inch or 2 inch pipe fill connections. It is made for deck-mounted diesel fill points where a labeled cap, an O-ring seal, and a key-operated deck plate help keep the fuel fill clearly identified and ready for regular use.

This range covers chrome plated bronze and plain bronze finishes, with flange outside diameters of 3-5/8 inches on the 1-1/2 inch size and 4-1/4 inches on the 2 inch size. It suits refits and replacements where the existing deck cutout, pipe size, and finish need to match the vessel’s current fuel fill hardware.

Key features

• Cast bronze construction with chrome plated bronze or plain bronze finish options for exposed deck installations.
• Made for diesel fill applications, with the flange marked for diesel to reduce confusion at the fuel dock.
• Available for 1-1/2 inch and 2 inch pipe sizes, matching common marine fuel fill plumbing layouts.
• 3-5/8 inch flange outside diameter on 1-1/2 inch models and 4-1/4 inch flange outside diameter on 2 inch models.
• Deck plate key and O-ring are included for cap removal and sealing at the fill point.
• 1-1/2 inch caps have a slot between the holes, while the 2 inch size uses four mounting holes.
• Uses #8 mounting screws for these listed sizes, with screws selected separately to suit the deck material and installation method.

Variants

This Perko diesel fill is offered in four configurations covering finish, pipe size, and flange outside diameter. The main choice is whether the deck hardware needs a polished chrome plated bronze look or a plain bronze finish, then matching the pipe size and flange diameter to the existing installation.

All listed variants are diesel fills from the same Fig. 0528 family and use cast bronze construction. The size and finish change by variant, so the pipe connection and visible deck footprint should be checked before ordering.

• 0528DPDCHR: Chrome plated bronze finish, 1-1/2 inch pipe size, 3-5/8 inch flange outside diameter. This version fits smaller diesel fill pipe installations where a chrome finish is needed to match surrounding deck hardware.
• 0528D09CHR: Chrome plated bronze finish, 2 inch pipe size, 4-1/4 inch flange outside diameter. This version gives the same chrome deck appearance in the larger 2 inch pipe size.
• 0528D08PLB: Plain bronze finish, 1-1/2 inch pipe size, 3-5/8 inch flange outside diameter. This version suits boats using plain bronze deck fittings or installations where the finish does not need to match polished hardware.
• 0528D09PLB: Plain bronze finish, 2 inch pipe size, 4-1/4 inch flange outside diameter. This version pairs the larger 2 inch pipe size with a plain bronze finish for a more workboat-style deck fitting.

Installation and fit

Before installation, confirm the pipe size, flange outside diameter, fastener layout, and available deck thickness against the existing fill location. On replacement jobs, the flange diameter is especially important because it affects whether the new fitting covers the old footprint cleanly.

Because this fitting sits on deck and is handled during fueling, the cap should be easy to reach, clearly visible, and positioned so spilled fuel can be managed safely. Bedding compound and screw selection should match the deck material and the boat’s normal marine service environment.

Use on board

This deck fill is a practical match for diesel-powered sailboats, cruisers, workboats, and fishing boats where a traditional bronze fill is preferred over plastic hardware. The marked diesel cap helps crews and fuel dock staff identify the correct fill point during routine fueling.

What’s included

• Diesel deck fill
• Deck plate key
• O-ring