Tesla Model 3 and Model Y Billet Rear Traction Arms and Rear Trailing Arms
$399.00 - $854.00 $319.20 - $854.00
Upgrade your Tesla Model 3 or Model Y rear suspension with Unplugged Performance’s Billet Rear Traction and Trailing Arm Set. CNC-machined from 6061 forged billet aluminum, each arm weighs under 2 lbs and replaces the factory stamped-steel units and soft rubber bushings with sealed spherical bearings featuring self-lubricating Teflon liners. A military-grade Cerakote ceramic hard coat protects against corrosion and road debris. Plug-and-play fitment that allows you to bolt them on and feel the difference immediately.
- Compatible with 2017–2025 Tesla Model 3 (including Highland refresh) and all Tesla Model Y variants.
- Backed by a 200,000-mile warranty and 30-day satisfaction guarantee.
Fitment: Compatible with all Tesla Model Y trims and model years, including Model Y 2020 – 2025, Model Y 2025 – Present, and Model Y L (long wheelbase AWD).
Buy this product and earn 319.2 UP Points.
Product Details
What Do Rear Traction Arms and Trailing Arms Actually Do?
Every time you accelerate, brake, or turn your Tesla Model 3 or Model Y, the rear suspension absorbs and redirects thousands of pounds of force. At the center of that system sit two critical linkages: the rear traction arms and the rear trailing arms. Together, they locate the rear knuckle and wheel assembly relative to the chassis, controlling fore-aft movement during acceleration and braking while maintaining precise wheel geometry through every corner.
In short, they are the structural backbone of your rear suspension. When those linkages flex, deflect, or respond inconsistently, you feel it as vague steering feedback, lazy turn-in, or a rear end that shifts and settles instead of planting and driving.
The Problem with Factory Components
Tesla’s factory rear arms are stamped from steel and use soft rubber compliance bushings. That design makes sense for a mass-produced vehicle: rubber bushings are inexpensive, absorb vibration broadly, and keep NVH low for the widest possible range of buyers. However, rubber introduces compromise. Under hard cornering, heavy braking, or spirited driving, those bushings compress, twist, and deflect, allowing the wheel to move in ways the geometry was never designed for. The result is lost motion at the contact patch, inconsistent toe and camber behavior mid-corner, and a general lack of precision that performance-oriented drivers feel immediately.
Rubber also degrades over time. Heat cycles, UV exposure, and the constant loading of daily driving break down the material, increasing slop and diminishing handling quality with every passing mile.
Why Billet Aluminum Changes Everything
Unplugged Performance’s Billet Rear Traction and Trailing Arms solve every one of those issues through three key engineering decisions.
Forged 6061 billet aluminum construction. Each arm is CNC-machined from a single forged billet, not cast, not stamped, not welded from tubes. This process yields a part that is both stronger and dramatically lighter than the factory steel piece, coming in at under two pounds per arm. Lower unsprung mass means the suspension reacts faster to surface changes, improving ride quality and grip simultaneously.
Sealed spherical bearings with Teflon liners. Replacing the factory rubber bushings with precision spherical bearings eliminates deflection entirely. Force transfers from the wheel to the chassis through a rigid, zero-compliance joint, giving you immediate feedback and repeatable geometry under load. The self-lubricating Teflon lining ensures smooth, consistent articulation over the life of the bearing, while sealed housings keep out water, grit, and road contaminants so daily-driver reliability never takes a back seat to track-level precision.
Military-grade Cerakote ceramic coating. Every arm is finished in Cerakote ceramic hard coat, the same surface treatment used on firearms and aerospace hardware. It resists corrosion, stone chips, and chemical exposure far beyond conventional anodizing or powder coat, ensuring these arms look and perform like new for years of real-world use.
Engineered for Every Driver
Whether your Tesla is a daily commuter, a weekend canyon carver, or a dedicated track machine, these arms deliver a sharper, more connected driving experience with zero increase in noise, vibration, or harshness. Installation is completely plug-and-play with no modifications required, and every set ships with Unplugged Performance’s 200,000-mile warranty because race-proven engineering should never come with an asterisk.
FITMENT: ALL TESLA MODEL Y TRIMS AND YEARS
This product is compatible with all Tesla Model Y trims and model years, including:
- Tesla Model Y 2020 – 2025 (all trims)
- Tesla Model Y 2025 – Present (all trims)
- Tesla Model Y L (long wheelbase AWD)
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Do rigid bearings make the car louder or harsher?
No. Swapping rubber for spherical bearings removes deflection and gives immediate feedback, but UP tuned this set to add no increase in noise, vibration, or harshness. You get sharper, more repeatable geometry under load without the drone that sometimes comes with solid joints. Owners run these on commuters and track cars alike.
How is this different from just adding a strut brace or sway bar?
A sway bar or brace reduces body roll and flex, but neither addresses the compliance built into the rear suspension links themselves. These arms attack the source: the rubber bushings that let the wheel wander under load. Fit them alongside the adjustable front and rear sway bar end links and you get both stiffer roll control and a rear end that holds its geometry. They solve different problems, so they complement rather than replace each other.
Can I buy just the traction arms or just the trailing arms?
Yes. You can order the full billet rear traction and trailing arm set, the traction arms only, or the trailing arms only. That flexibility helps if you are building the rear suspension in stages or already replaced one pair. Many owners pair these with the front lower control arm spherical bushing set to firm up both ends of the car.
How much lighter are these than the stock arms?
Each arm is CNC-machined from a single piece of forged 6061 billet aluminum and comes in under two pounds, lighter than the stamped steel factory unit. That drop in unsprung mass lets the suspension react faster to the road, which helps both grip and ride. The construction is stronger than stock while shedding weight, so you are not trading durability for the reduction.
What keeps the spherical bearings from wearing out on a daily driver?
The arms use sealed spherical bearings with self-lubricating Teflon liners in place of rubber bushings. The liner keeps articulation smooth over the life of the bearing, and the sealed housing keeps out water and road grime. On top of that, every arm wears a military-grade Cerakote ceramic hard coat, the same kind of finish used on firearms and aerospace parts, to resist corrosion and stone chips. Daily reliability was a design target, not an afterthought.
