Bestop Supertop Squareback Soft Top Black Twill Jeep Wrangler JL 4-Door Unlimited | 54726-17

Overview

The Bestop Supertop Squareback Soft Top (54726-17) in Premium Black Twill is Bestop's flagship full soft top engineered specifically for the 2018–2026 Jeep Wrangler JL Unlimited 4-Door. Designed for Wrangler owners who demand premium materials, true convertible functionality, and the classic square-back Jeep profile, this complete kit delivers industry-leading fabric quality, patented Sunrider open-air access, and zipperless window technology — all in one box. If you're searching for the best soft top for your Jeep Wrangler JL 4-Door, the Supertop Squareback in Black Twill sets the standard.

Key Features & Benefits

• Premium Black Twill Fabric (30 oz., Triple-Layered) — Bestop's highest-grade soft top material maintains its shape in all temperatures, resists mildew, and features UV inhibitors to prevent fading, delivering a quiet, refined ride even at highway speeds.
• Patented Sunrider® Open-Air Panel — Provides instant open-air access above the front row without removing or storing any panels, operable from the driver's seat for effortless on-the-go ventilation.
• Zipperless Side & Rear Panels — Slide-in and slide-out panel technology — the same system found on Bestop's premium Ultra series — eliminates zipper wear and makes window removal and reinstallation fast and tool-free.
• DOT-Approved Vinyl Windows with 18% Tint — Thick, tinted vinyl windows keep interior temperatures cooler, add passenger privacy, and meet DOT safety standards for legal road use.
• Waterproof & All-Weather Construction — Fully weather-sealed design keeps you and your passengers dry in heavy rain, while the mildew-resistant fabric ensures long-term performance through every season.
• Classic Squareback Silhouette — Streamlined, square-back profile preserves the iconic Jeep Wrangler aesthetic and is purpose-built for the JL Unlimited platform.
• Complete Kit — Everything Included — Comes with the soft top fabric, full frame, all mounting brackets, hardware, and tinted side and rear windows. No additional purchases required for a full installation.
• Industry-Leading 3-Year Warranty — Backed by Bestop's customer support and industry-leading warranty program, giving you long-term peace of mind on your investment.

What's Included

• Premium Black Twill soft top fabric (squareback style)
• Complete top frame and bow assembly
• All mounting brackets and hardware
• Tinted DOT-approved side windows (18% tint)
• Tinted DOT-approved rear window (18% tint)
• Installation instructions

Note: Doors are NOT included.

Specifications

Manufacturer Part #	54726-17
UPC	077848145354
Brand	Bestop
Style	Squareback (Square Back)
Fabric	Premium Black Twill, 30 oz., Triple-Layered
Fabric Color	Black (Premium Twill)
Window Tint	18% (DOT-Approved Vinyl)
Doors Included	No
Full Fold-Down	No — Minimalist design; does not fold completely down
Sunrider Feature	Yes — Patented front open-air panel
Zipperless Windows	Yes — Slide-in/slide-out side and rear panels
Package Dimensions	60.31 x 28.19 x 8.00 inches
Vehicle Application	2018–2026 Jeep Wrangler JL Unlimited (4-Door)

Fitment & Compatibility

The Bestop 54726-17 Supertop Squareback Soft Top is designed exclusively for the 2018–2026 Jeep Wrangler JL Unlimited 4-Door (also sold as the Wrangler JLU). It does not fit the 2-door Jeep Wrangler JL, nor does it fit older JK-generation Wranglers. If you have a 2018 model year, verify that your vehicle is the JL generation (not JK) before ordering. This top is compatible across all JL trim levels including Sport, Sport S, Sahara, Rubicon, High Altitude, and 4xe variants (2018–2026).

Frequently Asked Questions

Does this soft top fold completely down? No. The Supertop Squareback has a minimalist design and does not fold completely down. If full retractability is required, Bestop recommends the Supertop Ultra or Trektop Ultra for the JL Wrangler.

Does it come with doors? No — soft doors are not included with this kit.

Is this the same as the Supertop Ultra? No. The Supertop Squareback (54726-17) is the standard flagship model. The Supertop Ultra adds a patented Guide-Track retraction system and full fold-down capability at a higher price point.

Installation

Installation of the Bestop Supertop Squareback requires light to moderate mechanical skill. The complete kit includes all necessary brackets, hardware, and the full frame — no dealership visit or professional installation is required, though first-time installation may take several hours. Bestop provides detailed written instructions and has official video walkthroughs available on YouTube to guide the process. Having a second person on hand during the initial installation is strongly recommended for managing the top and latching the front bows. Once installed and broken in, the Sunrider panel is easily operated by one person from the driver's seat.