Rough Country Hydraulic Tailgate Assist for Toyota Tundra (2007–2021) - Driver-Side Slow-Release Damper, Bolt-On A1018 Steel

Rough Country's Hydraulic Tailgate Assist is a bolt-on damper for the driver-side cable of 2007–2021 Toyota Tundra trucks that slows and controls tailgate descent for safer, one-handed lowering.

Replace hard drops and noisy slams with a smooth, controlled tailgate motion. This driver-side, slow-release tailgate damper is engineered specifically for Toyota Tundra models from 2007 through 2021 (2WD and 4WD, including SR, SR5, Limited, TRD Off-Road, TRD PRO and TRD Sport). It mounts to your factory cable location using included hardware, requires no drilling, and is constructed from durable A1018 plate steel so it withstands everyday use. Backed by Rough Country's three-year warranty, the unit is designed to be a simple, reliable upgrade that reduces strain and makes loading and unloading your bed easier.

How does this tailgate assist improve daily use?

The hydraulic damper controls the tailgate’s speed so it never slams shut, letting you lower the gate with one hand while holding cargo or a child. That gentle, consistent descent reduces noise and prevents sudden impacts that can damage the tailgate or anything in the bed. Installation is straightforward, so you’ll see the benefit immediately without complicated setup.

• Smooth, controlled tailgate lowering for safer single-handed operation
• Reduces slamming and potential damage to tailgate components
• Quieter, more predictable opening and closing motion
• Fast, bolt-on install with factory cables and included hardware

Will it fit my Toyota Tundra model and where is it installed?

This Tailgate Assist is custom-fit for 2007–2021 Toyota Tundra trucks, compatible with SR through TRD trim levels in both 2WD and 4WD configurations. It installs on the driver side only and uses the truck’s existing tailgate cable mounting point so no modifications or drilling are required. Only one unit is needed per truck to achieve the slow-release effect.

• Fits 2007–2021 Toyota Tundra 2WD and 4WD models
• Compatible with SR, SR5, Limited, TRD Off-Road, TRD PRO, TRD Sport trims
• Driver-side installation only; single assist per truck
• No drilling—uses factory tailgate cable location and included fasteners

What is it made of and how durable is the build?

Rough Country designed this assist with longevity in mind, forming the main bracket from A1018 plate steel for strength under repeated use. The hydraulic mechanism is sealed to provide consistent damping over time, and the powder-coated or finished metal parts resist corrosion from road exposure. Rough Country also supports the product with a three-year warranty for added peace of mind.

• A1018 plate steel bracket for high-strength mounting
• Sealed hydraulic damper for consistent, long-term performance
• Protective finish to resist corrosion and road wear
• Three-year Rough Country warranty included

How difficult is the installation and what’s included?

Installation is designed for typical hand tools and takes minimal time for someone comfortable with basic mechanical tasks. The assist bolts to the driver-side tailgate cable area and comes with all necessary fasteners, so no aftermarket parts are required. Because it uses factory cable points, the job avoids cutting or drilling and keeps the truck reversible to stock.

• Bolt-on installation—no drilling or permanent modification
• All mounting hardware supplied in the package
• Uses factory tailgate cable for straightforward fitment
• Can be installed with common hand tools in a home garage

Who is this for: Ideal for Toyota Tundra owners who want an easy, durable upgrade to prevent tailgate slams and make single-handed loading safer. It’s especially helpful for daily drivers, tradespeople who frequently access the bed, and anyone who wants a reliable, factory-friendly solution without permanent vehicle modification.