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Tesla Model 3 and Model Y rear suspension knuckle replacement
Specialist Repair Service – KMC Electric, Kettering
At KMC Electric, we regularly diagnose and repair rear suspension issues on Tesla Model 3 and Tesla Model Y vehicles. One of the most common faults we see is wear in the rear suspension knuckle bush, which can cause knocking noises, movement in the suspension, and reduced ride comfort.
As an independent Tesla specialist, we carry out this repair frequently and keep the required components in stock, allowing us to complete the repair quickly and at excellent value compared with main dealer pricing.
Our goal is simple: keep Teslas driving properly and on the road for as long as possible.
What Is the Rear Suspension Knuckle?
The rear suspension knuckle is a structural component within the rear suspension assembly. It connects multiple suspension arms to the rear hub and helps maintain correct suspension geometry.
Within the knuckle is a large rubber bush which absorbs movement and vibration. Over time this bush can deteriorate or split, allowing unwanted movement in the suspension.
When this happens, drivers may notice knocking noises or instability from the rear of the car.
Although the repair procedure and pricing are the same, the knuckle assemblies differ between Tesla Model 3 and Tesla Model Y, so it is important the correct part is used.
Tesla Rear Knuckle Part Numbers
Below are the knuckle assemblies used on vehicles up to January 2025.
Tesla Model 3 Rear Knuckle Assembly
- Left Hand: 1044411-00-F
• Right Hand: 1044416-00-F
These components are used on Tesla Model 3 vehicles and contain the bush that commonly wears over time.
Tesla Model Y Rear Knuckle Assembly
- Left Hand: 1188411-00-G
• Right Hand: 1188416-00-G
Although the design is similar to the Model 3 component, the Model Y uses its own knuckle assembly due to differences in suspension geometry and vehicle weight.
Symptoms of a Worn Rear Knuckle Bush
When the bush inside the knuckle begins to wear, Tesla owners may notice:
- Knocking or clunking noises from the rear suspension
• Instability or movement over bumps
• Excess suspension play during braking or acceleration
• Uneven tyre wear
• Reduced ride comfort
These symptoms can sometimes be confused with worn suspension arms or drop links, which is why correct diagnosis is important before replacing parts unnecessarily.
Our Tesla Rear Knuckle Repair Options
Because we specialise in Tesla vehicles, we offer two repair solutions depending on the condition of the vehicle.
Full Rear Knuckle Replacement
This involves replacing the entire knuckle assembly with a new component.
Price: MODEL 3 £395 per side fitted MODEL Y £425
This service includes:
- Removal of the worn knuckle assembly
• Installation of a replacement knuckle
• Correct torque procedures for suspension components
• Final inspection of the rear suspension system
We often carry these components in stock, allowing us to complete the repair quickly.
Why Tesla Suspension Repairs Require Specialist Knowledge
Electric vehicles place different stresses on suspension components due to their higher vehicle weight and instant torque delivery.
Correct diagnosis is important to avoid replacing unnecessary parts.
At KMC Electric, we combine traditional mechanical expertise with specialist EV knowledge.
Our credentials include:
- Level 4 EV Diagnostic & Repair Technician
• EV qualified since 2016
• Over 25 years of automotive experience
• Independent Tesla and EV specialist
Because we focus on Tesla repairs, we can often provide excellent value compared with main dealer pricing while maintaining high standards of workmanship.
Tesla Model 3 & Model Y Suspension Repairs in Northamptonshire
Our workshop is based in Kettering, Northamptonshire, and we regularly see Tesla owners travelling from across the region for specialist repairs.
If your Tesla Model 3 or Model Y is making knocking noises from the rear suspension, it is best to have the vehicle inspected before the problem worsens.
📍 KMC Electric
Kettering, Northamptonshire
📧 contact@kmcelectric.co.uk
Independent Tesla & EV Specialist
Frequently Asked Questions:
Q. What are the symptoms of a worn rear suspension knuckle on a Tesla Model 3 or Model Y?
A. Common symptoms include knocking noises from the rear, uneven tyre wear, vague handling, or movement detected during an MOT. In many cases, the issue is caused by wear in the bushes within the rear knuckle assembly.
Q. Do I need to replace the whole rear knuckle or can it be repaired?
A. In some cases, we can replace just the worn bush within the knuckle, which is a more cost-effective option. However, if wear is more extensive, a full knuckle replacement may be the better long-term solution. We will always advise the most sensible option based on inspection.
Q. Are the parts kept in stock?
A. Yes. At KMC Electric, we keep common Tesla rear suspension knuckle assemblies and components in stock. This allows us to complete repairs quickly and reduce vehicle downtime.
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