SeaPost® Sierra

Product family
SeaPost® Sierra
Available in the following markets.
Click to view all products in a specific market.

Our SeaPost® Sierra seat blends elegant contouring, ergonomic design, shock isolation, and a broad range of comfort-enhancing options. Each Sierra seat features an integrated serpentine spring system and high-density foam to deliver a bottomless, comfortable ride.

The Sierra comes with padded flip-up armrests that lock in three angle positions, 6" (152 mm) of manual fore/aft adjustment.

Customize your seat by selecting between standard or high back. The high back Sea Post Sierra seat comes with built-in adjustable lumbar support that reduces rider back fatigue. Include an optional flip-up seat cushion to save space. Order your Sierra seat with a custom logo to truly make it your own.

The rugged internal steel frame and serpentine springs are pre-treated and finished with an E-Coat baked TGIC powder coat. All Sea Post marine products feature this marinized finish to deliver superior protection against corrosion, abrasion, and impact. Each Sea Post seat undergoes 1,000 hours of salt spray testing and is tested and ABS certified to IMO High Speed Code Annex 10.



  • Integrated serpentine spring system
  • Comfortable high-density foam
  • Flip-up padded armrests
  • 6" (152 mm) fore/aft adjustment
  • Option for standard or high back
  • Option for built-in adjustable lumbar support (adjustable in high back only)
  • Option for fixed or flip-up seat
  • Optional two-point seat belt
  • Optional custom logo
SeaPost® Sierra

Additional features

Seat style options
Standard Back Height
High Back
Flip-Up Seat Cushion
Fixed Seat Cushion
Seat base
Optional accessories
Custom Embossed Logo
Custom Embroidered Logo
Two-Point Seatbelt
Floor Slide
Seaspension® Pedestal
Trim options

Explore your seating options

We design and manufacture seating that enhances productivity through a winning combination of innovation and quality. Contact us to explore your options and find out what we can do for you.

Truck interior seating (1)