Attwood Snap-Lock 1.77-Inch Boat Seat Pedestals & Base

Attwood Swivl-Eze Snap-Lock is a 1.77-inch boat-seat pedestal system with a locking connection between the post and its mating components. Choosing the right part involves more than post height: you also need to identify the mounting system, whether the seat mount is included and the shape of the deck base.

How the Snap-Lock system is arranged

1. Seat mountA fixed post such as the 29130 needs the matching Snap-Lock seat mount. The adjustable 39004 and 39204 families include an integral seat mount.
2. Pedestal postThe 1.77-inch anodized-aluminum post provides the selected fixed or adjustable height. Snap-Lock posts use a locking clip to engage the appropriate base.
3. Deck socketThe base attaches to the boat deck. Attwood SP-69773 is a square stainless-steel plate; its mounting opening is not the same measurement as the outer plate.

Attwood Snap-Lock pedestal and base comparison

The fixed post is 13 inches tall. The adjustable pedestals offer a choice of 16–20 inches or 24–30 inches, depending on the exact manufacturer number. Attwood's catalog also lists both numbered and SP-prefixed packaging versions for certain models; check the individual product listing rather than assuming that the package contents are identical.

Manufacturer part Component Size or height Mount or installation detail
29130 Fixed post 13-inch fixed height Separate seat mount needed
SP-29130 Fixed post 13-inch fixed height Separate seat mount needed
39004 Adjustable pedestal 16–20-inch adjustment range Integral seat mount
SP-39004 Adjustable pedestal 16–20-inch adjustment range Integral seat mount
SP-39204 Adjustable Pro-Post 24–30-inch adjustment range Integral seat mount
SP-69773 Deck socket base 7 × 7-inch stainless plate 2¾-inch specified deck opening
Safety classification: Attwood lists the 29130, 39004 and 39204 pedestal families as Type B components: slow-speed seating, not for a helm or driver position and not for use above 5 mph. The SP-69773 base has its own AO component rating, but that rating does not upgrade the assembled seat system.

What to verify before ordering

  1. Confirm Snap-Lock: a 1.77-inch Snap-Lock pedestal is not automatically compatible with Attwood's ¾-inch Lock'N-Pin or 2⅜-inch 238 Series hardware.
  2. Choose height and configuration: the 29130 is a fixed post without an integral seat mount, while the 39004 and 39204 adjustable families include their specified seat mounts.
  3. Check the deck base: SP-69773 has a 7 × 7-inch plate and an Attwood-listed 2¾-inch deck opening. Verify fastener positions and current installation instructions before cutting or modifying the deck.
  4. Inspect locking hardware: make sure the post locking clip and base are in proper condition; do not assume a worn or differently branded component will lock correctly.
  5. Verify the complete seat assembly: part dimensions and ratings do not independently establish the safety of a mixed or incomplete installation.

Find the exact Attwood components

These product cards open the corresponding manufacturer numbers in the NewRVParts catalog. Orders ship from supplier warehouses; warehouse viewing or pickup is not available.

Other Attwood pedestal systems

If the post is a different size or uses a screw-in pin, compare the Lock'N-Pin ¾-inch post guide, Lock'N-Pin base guide or Attwood 238 Series seat mounting reference. These guides cover other systems, not confirmed substitutions for Snap-Lock parts.

Bulletin des pièces de VR

Inscrivez-vous pour nos prochaines promotions !

À propos de NewRVParts

NewRVParts est une boutique en ligne spécialisée dans les pièces et accessoires neufs pour véhicules récréatifs, les équipements pour caravanes portées, les pièces de remorquage et de remorques, les accessoires pour camions et les produits nautiques. Nous servons nos clients partout au Canada et aux États-Unis, en expédiant des produits de fabricants de confiance via un vaste réseau de distribution nord-américain. Magasinez en ligne pour obtenir des pièces de rechange, des équipements et des accessoires livrés directement à votre porte.

Magasiner les pièces de VR