Overview

The Attwood Marine 977339-T is a SWIVL-EZE Lock'N-Pin 3/4 inch pedestal kit with a 13 inch post, a 7 inch x 7 inch threaded stainless steel base plate, and a black E-coated seat mount. It is a straightforward seating package for boats that need a fixed pedestal height and a threaded base in the Lock'N-Pin 3/4 inch system.

This kit makes sense for adding or replacing a seat pedestal on fishing boats, pontoon boats, and general cruising setups where a compact deck footprint and simple installation matter. The 13 inch post height keeps the seat low enough for many helm and passenger positions, while the stainless base plate and coated seat mount are better suited to wet boat use than plain steel hardware.

Key features

• Complete pedestal kit with 13 inch post, seat mount, and 7 inch x 7 inch threaded base plate
• Built around the SWIVL-EZE Lock'N-Pin 3/4 inch system, which matters when matching existing seat hardware
• Threaded stainless steel base plate gives a secure deck mounting point in a compact 7 inch x 7 inch footprint
• Black E-coated seat mount adds a protective finish in wet cockpit and deck areas
• ABYC-compliant Lock'N-Pin system for buyers who want a seating setup that aligns with recognized marine standards
• Common fit for fishing, pontoon, and cruising boats where a fixed pedestal kit is preferred over an adjustable setup

Compatibility and fit

This pedestal kit is intended for seating layouts built around Attwood's Lock'N-Pin 3/4 inch components. That system size is the first thing to verify before ordering, especially if you are replacing one part of an existing seat base rather than starting fresh with a full new install.

The 13 inch post height is also worth checking against your current sightline and legroom at the helm or passenger position. On smaller fishing boats and pontoons, that lower pedestal height is often used where a stable seated position matters more than extra elevation.

Installation and setup

The threaded 7 inch x 7 inch base plate gives you the deck-side mounting point, and the post and seat mount complete the stack above it. Before installation, confirm that the deck structure under the mounting area is strong enough for a seat pedestal load and that the mounting pattern works with your boat's backing arrangement.

This kit is a good match for owners replacing worn seating hardware with the same Lock'N-Pin format, as well as for builders adding a practical seat base to an open cockpit or pontoon deck. It suits boaters who want a fixed-height pedestal kit without moving to a more complex suspension or adjustable pedestal system.

What’s included

• 13 inch seat post
• 7 inch x 7 inch threaded stainless steel base plate
• Black E-coated seat mount