Tesla wheel bearing guide
Tesla Model Y Wheel Bearing Guide: 142mm vs 150mm Flange
Replacing a Tesla Model Y wheel bearing hub requires more than choosing a generic fitment result. Tesla uses hub assemblies with different flange sizes, and the 142mm and 150mm versions are not interchangeable. Use this guide to compare the two sizes, verify your existing hub, understand failure symptoms, and shop StandardAutoPart Tesla 3/Y hub assembly options.
Shop the parts
StandardAutoPart Tesla 3/Y wheel bearing hub assemblies
Start with your existing hub size, not only the model year. The product links below help customers move from this guide directly to the correct StandardAutoPart product page after confirming flange size and position.
Tesla 3/Y Wheel Bearing Hub Assembly — 70-KH9203
Use this option when your existing hub confirms a 142mm flange. Commonly associated with many single-motor RWD applications, but always verify by part number or measurement before ordering.
View 142mm product →Tesla 3/Y Front Wheel Bearing Hub Assembly — 70-KH9202
Use this option when your application requires a 150mm flange. Review the product page and confirm front/rear position, drive configuration, and flange measurement before ordering.
View 150mm product →Do not rely only on a generic year/make/model chart. Tesla production changes can cause exceptions. Confirm the stamped Tesla part number or physically measure the hub flange before ordering.
Core difference
142mm vs 150mm Tesla hub assemblies: what changes?
The flange measurement is the outside diameter of the flat wheel hub face where the brake rotor mounts. These parts can look similar online, but the flange face size affects how the rotor and wheel seat against the hub.
| Feature | 142mm Hub Assembly | 150mm Hub Assembly |
|---|---|---|
| Flange diameter | 142 mm / 5.59 in | 150 mm / 5.91 in |
| Common drive configuration | Often associated with single-motor RWD | Often associated with AWD Long Range / Performance or larger knuckle setups |
| Tesla OEM number clue | 1044123 base sequence | 1044121 base sequence |
| StandardAutoPart option | 70-KH9203 | 70-KH9202 |
Fitment confirmation
How to verify your Tesla hub size before ordering
1. Check the stamped part number
Inspect the back or edge of the existing hub. A 1044123 base sequence usually points to 142mm; a 1044121 base sequence usually points to 150mm.
2. Measure the hub face
If the part number is unreadable, remove the wheel and brake rotor, then use a digital caliper to measure the flat hub face edge to edge.
3. Confirm position and drive type
Before ordering, confirm whether the product page matches your front/rear position, RWD/AWD configuration, and application notes.
Diagnosis help
How do you know your Tesla wheel bearing is failing?
A failing bearing can be easier to hear in an electric vehicle because there is no engine noise masking the sound. These symptoms are common signs that a hub bearing should be inspected.
Airplane-style hum
A low rhythmic groan or drone that follows vehicle speed and often becomes more noticeable around highway speeds.
Pitch change while cornering
If the noise gets louder when gently veering one direction, the opposite-side bearing may be carrying load and revealing wear.
Vibration through the floor
Advanced wear can create play inside the bearing, felt as vibration through the floorboard or seat structure.
Repair reference
Tools and torque specs to prepare before installation
The wheel bearing hub assembly is a safety-critical part. The following information is a planning reference from the supplied guide; always confirm the latest procedure and specifications for your exact vehicle before repair.
| Fastener Location | Torque | Tool | Hardware |
|---|---|---|---|
| Hub to rear knuckle bolts (x3) | 115 Nm / 84.8 lb-ft | 18 mm socket | Safe to reuse |
| Brake caliper to knuckle bolts (x2) | 83 Nm / 61.2 lb-ft | External Torx E18 | Replace with new |
| Brake rotor to hub retaining bolt | 5 Nm / 3.7 lb-ft | T30 Torx / 10 mm | Safe to reuse |
| Axle halfshaft main center nut | 300 Nm / 221.2 lb-ft | 32 mm deep socket | Replace with new |
Installation tips
Pro tips for a cleaner Tesla hub installation
Clean the bore thoroughly
Aluminum knuckles can oxidize where they contact a steel hub. Clean corrosion from the knuckle bore so the new hub seats straight and flush.
Lubricate only where appropriate
Apply a thin layer of suitable paste to the axle mating shoulder when required, but keep grease off the splines unless the service procedure calls for it.
Replace single-use hardware
The axle center nut and caliper bolts are commonly treated as single-use hardware. Plan replacements before the job.
Search our catalog
Search Tesla wheel bearing hubs by flange size or part number
If you are still confirming fitment, these quick searches use the same kind of words customers search on Google and inside the StandardAutoPart store.
Common questions
Tesla Model Y wheel bearing FAQ
Are Tesla Model Y 142mm and 150mm hubs interchangeable?+
No. Even though the assemblies can look similar, the flange diameter is different. The brake rotor and wheel must seat correctly against the hub face, so the flange size must match your vehicle.
How do I confirm whether I need 142mm or 150mm?+
Check the original hub part number first. If the number is not readable, remove the rotor and measure the flat hub face edge to edge with a caliper. It should measure about 14.2 cm or 15.0 cm.
Which StandardAutoPart product should I use?+
Use the 70-KH9203 product link for Tesla 3/Y 142mm flange applications and the 70-KH9202 product link for Tesla 3/Y 150mm flange RWD/front hub applications. Always review the product page and compare against your vehicle before ordering.
Can StandardAutoPart help confirm fitment?+
Yes. If you are unsure, contact StandardAutoPart before ordering with your vehicle year, drive configuration, front/rear position, and any stamped part number visible on the existing hub.
Ready to confirm your part?
Measure first, then order with confidence.
Tesla hub flange size matters. Confirm 142mm or 150mm, check your product page carefully, and contact our parts team if you need help before ordering.
Shop 142mm hub Shop 150mm hub