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7 x 7-Inch Aluminum Boat Seat Base with 3/4-Inch Pin Socket

$19.89 (Price correct as of 10/29/2026 21:11 PDT · Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

This boat seat base has a 7 x 7-inch plate and a 3/4-inch non-threaded pin post socket with an acetal bushing. The one-piece aluminum casting has reinforcing ribs and a gloss finish. Installation calls for a 2.5 to 3-inch center hole, 2.5 inches of below-deck clearance and six screws, which are not included. Check the post fit and deck requirements before choosing it.

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SKU: B0H39H723C Category:

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Quick Summary

This aluminum boat seat base has a 7 x 7-inch plate and a 3/4-inch non-threaded pin post socket. Its one-piece casting includes reinforcing ribs and an acetal bushing. Check that the socket matches your seat post and that your deck can accommodate the specified opening and clearance.

Key Details

Detail Product information and buyer relevance
Base plate 7 x 7 inches. Compare this footprint with the intended mounting location.
Post socket 3/4-inch, non-threaded pin post socket with an acetal bushing. Confirm the post type and fit.
Construction One-piece aluminum casting with reinforcing ribs and a gloss finish.
Installation details Described as flush-mounted, with a 2.5 to 3-inch center hole and 2.5 inches of below-deck clearance. Six screws are required and are not included.

What to Compare Before Buying

  • Seat post fit: Check that your post uses a 3/4-inch non-threaded pin connection; the stated size alone does not establish fit with every post.
  • Deck space: Compare the 7 x 7-inch plate with the mounting area and verify room for the specified center hole and below-deck clearance.
  • Fasteners: Six screws are not included. Check what screws suit your mounting surface and installation.

Setup and Correct Use

The described installation uses a 2.5 to 3-inch center hole, at least 2.5 inches of below-deck clearance, and six screws. Confirm the location and clearance before drilling, and follow the applicable instructions for the boat and mounting surface.

Before You Decide

Confirm the post connection, plate footprint, deck opening and clearance, and plan for the six screws, which are not included.

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