Overview
The Bestop Trailmax II Stationary High Back Seat in gray denim, part number 39436-09, is a front seat with a fixed high back and a built-in headrest. It is a Direct Fit seat, but no confirmed vehicle fit is available, so check the years and models it covers before choosing it.
The gray denim covers an Atlas frame that is sturdy and resists corrosion. Variable Rate of Resistance springs give comfort on the road and support on the trail. High density closed cell foam helps the seat keep its shape over years of use.
Key features
- Stationary high back design for the front seat position.
- Gray denim upholstery.
- Built-in headrest.
- Atlas frame that Bestop describes as sturdy and corrosion resistant.
- Variable Rate of Resistance springs.
- High density closed cell foam padding.
Matching seats to trails
Trail use puts repeated load on a seat frame, so the frame and its welds deserve regular attention. An Atlas frame with corrosion resistance helps in wet or salty conditions, but mounting bolts still need checks. Look for rust at bolt heads and clean any mud out of the seat base after trips. Tighten bolts after the first few trail runs.
Denim upholstery is more textured than vinyl, so it shows dirt differently. Brush and spot clean regularly, and let it dry fully to avoid odor. Springs should feel even when you sit down. If one side drops or the seat feels uneven, check the spring mounts before continuing to drive. Keep the headrest clear of cables and storage bags.
Specifications
| Brand | Bestop |
|---|---|
| Product line | Trailmax II |
| Seat type | Stationary High Back |
| Seat location | Front |
| Color | Gray |
| Upholstery | Gray denim |
| Frame | Atlas frame |
| Springs | Variable Rate of Resistance |
| Cushion foam | High density closed cell foam |
| Headrest | Built-in |
| Fitment type | Direct Fit |
| Part number | 39436-09 |
| UPC | 77848027995 |
Vehicle fitment
No vehicle fit is confirmed for this seat. It is marked Direct Fit for a front seat. Wrangler applications from 1997-02 and 2003-06 need adapter brackets, so match the seat to those applications before use.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Some Wrangler applications need an adapter bracket under the seat. Bracket 51256-01 is needed for 1997-02 applications, one for each seat. Brackets 51245-01 (driver side) and 51248-01 (passenger side) are needed for 2003-06 applications. Mounting hardware is included. Check that the seat is firmly secured before use.
What’s included
Mounting hardware is included with the seat.
Not included: the seat adapter brackets named for the 1997-02 and 2003-06 Wrangler applications.









