Overview

The Attwood Marine 2385400 is an adjustable boat seat pedestal with a 2-3/8 in. post, a height range of 14 to 20 in., an integrated seat mount, and a 9 in. round base. It is a manual bell-style pedestal for boat seating where you want height adjustment without changing over to a different pedestal diameter or base style.

This setup makes sense on fishing boats, skiffs, runabouts, and similar small craft where seat height affects sight lines, legroom, and comfort at the helm or in the cockpit. The pedestal uses anodized aluminum parts with stainless steel handle components, which helps in wet deck areas where spray, washdowns, and constant vibration are part of normal use.

Because the seat mount and base are part of the assembly, it also works well for replacement jobs where the existing pedestal is worn out but the boat still uses this 2-3/8 in. format. Before ordering, the main fit points to confirm are post diameter, height range, base footprint, and the mounting pattern on the seat you plan to bolt on.

Key features

• Height adjusts from 14 to 20 in. to fine-tune seating position for visibility and comfort.
• 2-3/8 in. pedestal post with a 9 in. round aluminum base.
• Seat mount is included as part of the pedestal assembly.
• Manual side-handle adjustment with friction control for the swivel action.
• Anodized aluminum construction with stainless steel handle components for exposed marine seating areas.
• Built to meet ABYC standards for marine seating hardware.

Compatibility and fit

This pedestal is best matched to boats already set up for a 2-3/8 in. bell pedestal system or to new installations where you are building around that size from the start. The 14 to 20 in. adjustment range is useful when one seating position needs to work for different crew members or when a boat is used both underway and at rest.

Seat fit matters as much as deck fit. Check the seat mount against your existing seat or replacement seat before installation, especially if you are reusing older seating. On the deck side, use a solid mounting surface with proper backing where needed so the base stays tight under repeated movement and load.

Installation and care

Install the base on a flat, reinforced section of deck and verify that the seat clears nearby consoles, coamings, leaning posts, and wheel movement through the full swivel range. This is worth checking before final drilling on smaller cockpits where space is tight.

For boats kept in saltwater, rinse the pedestal after use and keep the moving surfaces free of salt and grit. That simple maintenance helps the height adjustment and swivel action stay smooth over time.

Use on board

This pedestal suits owners replacing a worn adjustable seat base on a fishing boat or utility boat, and it also fits new seating layouts that need a little height flexibility without moving into a more complex suspension or power pedestal setup. It is a practical choice when the goal is a stable seat base with common marine dimensions that are easy to match during a refit.