---
product_id: 10899256
title: "Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal,16-20\", Silver"
brand: "attwood"
price: "€ 256.44"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/10899256-attwood-sp-39004-1-77-series-adjustable-aluminum-snap-lock
store_origin: NL
region: Netherlands
---

# Enhanced metal-insert locking clip 16-20 inch adjustable range Hard anodized corrosion-resistant aluminum Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal,16-20", Silver

**Brand:** attwood
**Price:** € 256.44
**Availability:** ✅ In Stock

## Summary

> ⚓ Elevate your boat seating game — comfort and durability that won’t quit!

## Quick Answers

- **What is this?** Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal,16-20", Silver by attwood
- **How much does it cost?** € 256.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/10899256-attwood-sp-39004-1-77-series-adjustable-aluminum-snap-lock)

## Best For

- attwood enthusiasts

## Why This Product

- Trusted attwood brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from hard anodized aluminum, ensuring superior corrosion resistance in marine environments.
- • **Trusted Marine Legacy:** From Attwood, a century-strong leader in marine innovation and quality you can rely on.
- • **Effortless Installation:** Standard 5.25” bolt pattern fits most bases for quick, hassle-free setup.
- • **Precision Height Control:** Easily adjust seat height from 16 to 20 inches for optimal comfort and visibility.
- • **Secure Locking Mechanism:** Larger locking clip with metal insert guarantees your seat stays firmly in place during every adventure.

## Overview

The Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal offers a robust, corrosion-resistant aluminum build with a 16-20 inch adjustable height range. Featuring a secure metal-insert locking clip and a standard 5.25” bolt pattern, it delivers reliable performance and easy installation for fishing, pontoon, or cruising boats. Backed by Attwood’s 100+ years of marine expertise, this pedestal combines safety, durability, and convenience for the discerning boater.

## Description

Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal,16-20", Silver

## Features

- Hard anodized, corrosion resistant aluminum seat pedestal
- 16-20 inch easy to adjust seat pedestal delivers a great combination of value and performance
- Includes larger locking Clip with a metal insert, allowing the post to lock into bases for added safety
- Not recommended to interchange with other manufacturers' products.
- Seat mount is 5.25” bolting on center.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 21 x 7 x 7 inches |
| Package Weight | 1.97 Kilograms |
| Item Dimensions  LxWxH | 7.01 x 8.5 x 21.5 inches |
| Item Weight | 1.7 Kilograms |
| Brand Name | attwood |
| Warranty Description | Please contact us if you experience any issues within 30 days of receipt. |
| Model Name | Swivl-Eze Boat Seating Accessories |
| Color | Silver |
| Material | Aluminum |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Manufacturer | Swivl-Eze |
| Part Number | SP-39004 |
| Included Components | End Product & Information |
| Size | One Size |

## Images

![Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal,16-20", Silver - Image 1](https://m.media-amazon.com/images/I/51+Q-P9VthL.jpg)
![Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal,16-20", Silver - Image 2](https://m.media-amazon.com/images/I/51rhgkDFxPL.jpg)
![Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal,16-20", Silver - Image 3](https://m.media-amazon.com/images/I/518ZAW2fp6L.jpg)
![Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal,16-20", Silver - Image 4](https://m.media-amazon.com/images/I/51WCcQPI+cL.jpg)
![Attwood SP-39004 1.77 Series Adjustable Aluminum Snap-Lock Seat Pedestal,16-20", Silver - Image 5](https://m.media-amazon.com/images/I/61m07NCTmPL.jpg)

## Questions & Answers

**Q: will this fit 2 3/8 base**
A: It really all depends on the base these are a push button so if your base is got a hole in it than the button goes in it when you press it

**Q: Will this fit into new Lund boat bases**
A: Lowe

**Q: How do you get them to Not swivel for trailering?**
A: We recommend these be removed when trailering.

**Q: How does it connect to the swivel base**
A: Our 1.77" has a locking clip that will secure into the floor base. Simply push in a button to remove from the floor base.

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**Shop now:** [https://www.desertcart.nl/products/10899256-attwood-sp-39004-1-77-series-adjustable-aluminum-snap-lock](https://www.desertcart.nl/products/10899256-attwood-sp-39004-1-77-series-adjustable-aluminum-snap-lock)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*