Pirjeco 6 Inch Boat Seat Post Kit, 7x7 Inch Marine Base Plate with 3/4 Inch Locking Pin, 360° Swivel

Pirjeco's 6-inch boat seat post kit is a complete 7"x7" base-plate package with a 3/4" locking pin post that adds a corrosion-resistant, 360° swivel seat mount to pontoons, bass boats, and jon boats.

This all-in-one mounting kit supplies the key components needed to replace or install a standard boat seat: a 7"x7" marine-grade base plate, a lockable 3/4" pin seat mount, and a 6" tall aluminum post socket. Designed for common non-threaded 3/4" pin systems, the assembly lets you set up a secure, swiveling seat station quickly without custom fabrication. Materials and construction focus on long-term salt- and freshwater performance while keeping installation straightforward for boat owners and DIYers.

How will this kit fit my existing boat seat?

The Pirjeco base plate and locking post are engineered for standard non-threaded 3/4" pin seats and fit most marine seat sockets sized to 1.5" diameter and 6" height. If your seat uses the common 3/4" pin interface, the components should mate directly without adapters.

• Includes 7" x 7" base plate for standard bolt patterns
• Compatible with non-threaded 3/4" pin seat posts
• 6" post socket height and 1.5" outer diameter
• Works with most pontoon, bass, jon, and small cruiser seats

What makes this mount durable for marine conditions?

Materials and reinforcement were selected to resist corrosion and bending under repeated use. The base is aluminum for low weight and rust resistance while the internal locking pin and reinforcement ribs are alloy steel for stronger load support.

• Aluminum base plate resists oxidation in freshwater and saltwater
• Reinforced alloy-steel ribs improve load-bearing capacity
• Solid steel locking pin reduces risk of accidental seat release
• Finish and construction designed for long-term deck mounting

How does the swivel and locking mechanism improve onboard comfort and safety?

The pedestal provides a smooth 360° rotation so you can turn easily while fishing, piloting, or reaching gear. A positive lock pin secures the seat in place to prevent separation during rough rides and helps keep the seat steady when bracing or casting.

• 360° smooth swivel for unrestricted movement
• Lock-in 3/4" pin system prevents accidental detachment
• Stable post height reduces fatigue during long outings
• Better control when operating trolling motors or standing up

What comes in the package and how hard is installation?

The kit arrives complete with a 7"x7" deck plate, the 6" tall post socket, and the lock-in 3/4" pin mount ready for bolting to most deck surfaces. Installation is designed to be straightforward for anyone comfortable with basic tools and deck hardware; sealant and proper torque on fasteners are recommended for a watertight, secure fit.

• Package includes base plate, locking 3/4" pin mount, and 6" post socket
• Requires drilling and bolting to deck using marine-grade fasteners
• Use marine sealant beneath plate to prevent moisture intrusion
• Typical install time: 30–60 minutes for experienced DIYers

Who is this for: Boaters looking to replace a worn seat pedestal or add a reliable seating station on pontoons, bass boats, jon boats, and small cruisers will find this Pirjeco kit practical and cost-effective. It's aimed at anglers, family boat owners, and marine DIYers who want a corrosion-resistant, lockable 360° swivel mount that fits standard 3/4" pin seats without extensive modification.