The Silent Guardian of Your Ride’s Smoothness
Beneath your Tesla Model S or X’s rear suspension lies a small but
mighty component: the 1021420-00-ACT rear upper control arm
bushing. It’s the unsung hero that connects the rear upper control
arm to the chassis, absorbing road shocks, reducing vibrations, and
keeping your suspension aligned—all while letting the control arm
move freely as you steer, brake, or hit a pothole.
For 2012-2023 Model S and X owners, this bushing is critical. A
worn-out one doesn’t just make rides bumpy—it throws off your
suspension geometry, leading to sloppy handling, uneven tire wear,
and even increased braking distance. Think of it as the “shock
absorber” for your suspension’s moving parts: without it, every
jolt from the road goes straight into your cabin and your vehicle’s
frame.
- Shock Absorption: Made from high-grade rubber, it cushions the metal-on-metal
contact between the control arm and chassis. When you hit a curb or
rough patch, it soaks up the impact so you don’t feel every bump.
- Vibration Dampening: Blocks road noise and vibrations from reaching the cabin. A
failing bushing lets these vibrations pass through, turning your
quiet Tesla ride into a noisy, rattling experience.
- Alignment Keeper: Holds the rear control arm in precise position, ensuring your
wheels stay properly aligned. No more “drifting” on straight roads
or uneven tire tread wear (which costs you in premature
replacements).
- Flex with Purpose: Flexes just enough to let the control arm move during turns or
suspension compression, but stays rigid enough to maintain
stability. It’s the balance between flexibility and control.
Don’t wait for a breakdown—watch for these red flags:
- Clunking/creaking noises: A “knock” or “squeak” from the rear when turning, braking, or
going over bumps. This is the sound of worn rubber letting metal
parts grind together.
- Loose handling: Your Model S/X feels “wobbly” on the highway, or takes longer to
steady after a turn. The bushing can’t keep the control arm stable
anymore.
- Uneven tire wear: Bald spots on the inner or outer edges of your rear tires.
Misalignment from a bad bushing forces tires to drag at an angle.
- Vibration in the cabin: Rattling or buzzing felt through the seats or steering wheel,
even on smooth roads. The bushing isn’t blocking road vibrations
like it should.
Cheap bushings use soft rubber that wears out in 20k miles—this one
is built for Tesla’s weight and performance:
- Tesla-Calibrated Rubber: The EPDM compound is engineered to handle the weight of Model S/X
(up to 5,500 lbs). It won’t compress or crack under heavy loads,
unlike generic bushings.
- Steel Core Reinforcement: A rigid steel inner sleeve prevents the bushing from deforming
under stress, keeping your control arm aligned for longer.
- Weatherproof: Resists oil, road salt, and UV damage—critical for rear
suspension parts exposed to slush, rain, and debris.
- Drop-In Fit: Exact dimensions match your original bushing, so installation
requires no trimming or modification.
- 1x Rear Upper Control Arm Bushing (1021420-00-ACT)
- Installation guide with torque specs (85 Nm for mounting bolts)
- Pro tip: Most mechanics recommend replacing bushings in pairs (left
and right) for balanced performance—add two to your cart!
Note: Professional installation recommended. Requires a press tool
to remove the old bushing and seat the new one properly—critical
for avoiding premature failure.
Don’t Let a Small Part Ruin Your Ride
A worn bushing turns your Tesla’s smooth ride into a chore. This
one brings back that “like new” feel, with tight handling and quiet
cabins.
Click “Add to Cart” to restore your suspension’s performance. Ships
worldwide in 48 hours with tracked delivery.
