Tesla Model 3/Y Front Upper Control Arm | LH 1188321 / RH 1188326
Check the selected Tesla model, model year, and option before checkout. If this product has a Car Model or Compatible Model selector, choose the option that matches your vehicle.
- Use the product images and variant name to confirm the correct version.
- If you are unsure about fitment, contact Tesstudio with your Tesla model and production year before ordering.
Tesstudio installation support is available for Tesla owners who need help choosing, installing, or troubleshooting accessories.
Most Tesstudio accessories are designed for straightforward DIY installation. For powered upgrades, wiring, lighting, or large exterior parts, professional installation may be recommended.
Local installation and technical support
- Address: 14761 Franklin Ave # G, Tustin, CA 92780
- Technical support: +1 (657) 543-9876 or +1 (657) 565-1007
- Support hours: Monday-Friday, 8:30 AM-5:30 PM
The phone numbers above are for technical installation support only. For orders, shipping, returns, or general customer service, contact:
- Email: support@tesstudio.com
- WhatsApp: +1 714 317 9647
Tesstudio checks fit, material, and daily-use durability before listing products for Tesla owners.
- Eligible products include warranty support for non-human damage issues.
- If a product arrives damaged or does not fit as expected, keep the packaging and contact us with photos so we can help quickly.
In-stock items are usually processed within 1-2 business days. Delivery time depends on destination, product size, and stock status.
- Orders over $99 qualify for free standard shipping where available.
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- Tracking is provided after dispatch.
Need help before or after purchase?
Contact Tesstudio support:
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A-revision front upper control arm
Confirm the upper arm side before ordering the A-revision assembly
This silver U-shaped front upper control arm is offered in exact left and right references: 1188321-00-A for LH and 1188326-00-A for RH. Side, mounting details and vehicle configuration should all agree before it reaches the installation bay.
Before checkout: Some media show both left and right arms to explain their mirrored design. The live selector is side-specific, and a pair is not stated as included.
What gives this purchase a clearer fitment trail
Exact A-revision options
Both live variants include a complete part number, making the order easier to compare with the removed arm or current service record.
Visible side identification
The media show L/R markings, bushings, the joint end and mounting features for pre-installation comparison.
Official procedure context
Tesla service material identifies the 1188321/1188326 family within front upper control arm procedures for listed Model 3 and Model Y generations.
Match the exact A-revision option
Choose the confirmed side in the live selector. Do not swap LH and RH or assume another revision is equivalent.
LH 1188321-00-A
For the left-hand front upper control arm position only after the existing reference or current service data confirms 1188321-00-A.
RH 1188326-00-A
For the right-hand front upper control arm position only after the existing reference or current service data confirms 1188326-00-A.
What a well-matched upper arm supports
The intended side geometry
The correct LH or RH choice aligns the mirrored U-shape, bushings, joint and brackets with the diagnosed side.
A more controlled repair decision
Matching the exact A-revision reduces reliance on generic Model 3/Y fitment claims.
Better pre-installation verification
Visible markings and mounting details give the technician multiple points to compare before installation begins.
Product and fitment details
Set the repair up around the vehicle, not a generic diagram
Confirm configuration and revision
Use the VIN/build configuration, existing reference and current service information before ordering or disassembly.
Inspect the complete assembly
Compare the U-shaped body, bushings, joint, side mark and sensor-related bracket details with the original arm.
Complete the required checks
A trained technician should follow current ride-height, fastener and post-repair alignment procedures for the specific vehicle.
Part and origin transparency
The product media show CTP and reference/origin markings on the photographed silver assemblies. They do not show Tesla-branded retail packaging or a manufacturer certificate, so this page does not represent those markings as proof of genuine Tesla manufacture.
Do not confuse these neighboring control-arm families
The links below help compare shapes and reference families before ordering. None should be substituted without a confirmed service match.
1188321 / 1188326 upper control arm FAQ
Which option is left and right?
Choose LH 1188321-00-A for the left side or RH 1188326-00-A for the right side after confirmation.
Does one order include both upper arms?
A pair is not stated. The live selector is side-specific.
Can I replace another revision with this A revision?
Do not assume interchangeability. Confirm a documented supersession or exact service match for the vehicle.
Which Model 3 and Model Y years are listed?
The current product data lists Model 3 2017-2023 and Model Y 2020-2024, but exact build configuration and part number take priority.
What symptoms can an upper arm problem cause?
Upper-arm wear can be associated with noise, play or alignment-related concerns, but those symptoms are not unique to this part and require inspection.
Is alignment attention needed after replacement?
Tesla service information includes post-repair steering/alignment requirements for upper-control-arm work. A qualified technician should follow the procedure for the specific vehicle.
Confirm the component, side and full reference before checkout
A precise match and a professional repair plan protect both the installation and the decision behind it.
Q&A
We provide assistance through email, live chat, and detailed installation guides. Additionally, we offer step-by-step tutorial videos featuring influencers to help you with the process.
We offer a one-year warranty (two years for some products).
Yes, the product can be removed after installation without affecting the original wiring harness of the vehicle.
We offer free returns and exchanges if there are any quality issues with the product upon receipt by the customer.
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