Westcott Designs Billet Rear Upper Trailing Arms For 4Runner (2025-Current)

Billet Rear Upper Trailing Arms – 2025 Toyota 4Runner (6th Gen) & More

Introducing the ALL-NEW Westcott Designs Billet Rear Upper Trailing Arms for your 2025 Toyota 4Runner (6th Gen)—engineered for serious off-roaders and performance enthusiasts looking to maximize control, strength, and suspension articulation.

Designed to complement our Billet Rear Lower Trailing Arms, this upper trailing arm upgrade delivers increased stability, axle control, and improved off-road dynamics, especially when paired with a lift kit.

Built from precision-machined 6061 billet aluminum and featuring heavy-duty FK rod ends and uniballs, these trailing arms are built for durability and seamless performance. Plus, with a dual-adjusting pivot, alignment becomes simple and accurate.

Compatible Fitment:

• 2025+ Toyota 4Runner (6th Gen)
• 2024+ Toyota Land Cruiser LC250
• 2024+ Lexus GX500
• 2023+ Toyota Sequoia (3rd Gen)
• 2022+ Toyota Tundra (3rd Gen)

Key Features:

• Heavy-duty PTFE-lined FK 1.125″ uniball
• Stainless steel misalignment spacers
• Precision-machined 6061 billet aluminum arm (USA-made)
• Compatible with factory ride height sensors

Upgrade your suspension the OE+ way—engineered for strength, built for adventure. Order your Billet Upper Trailing Arms today!

In stock? It ships fast.
In-stock items ship from our warehouse in Utah, usually within 1–2 business days. Sometimes we ship part of your order separately to get it to you sooner, at no extra cost. Each package gets its own tracking number by email.

Some items are ordered for you.
Certain items are special-ordered from the manufacturer after you buy. The estimated lead time is listed on this page, and shipping time is added after that. We will send you updates as we receive them.

Questions? You can always reach out. Call or text us at (385) 526-3903.

Returns
You have 30 days from delivery to send something back. It has to be uninstalled, unused, and in its original packaging. Start your return through our returns portal and we’ll walk you through it.

Warranty
4Runner Lifestyle has your back with a strong warranty, and we’ll always work to get you covered. Call us and we’ll handle the claim with the manufacturer for you.

Questions? Call or text us at (385) 526-3903.

Read our full Return Policy.