We often worry about the brakes or the engine oil when we want to maintain our automobiles running safely and smoothly. What about the parts that hold up the whole car and let the wheels turn? The wheel bearing is a small but vital part that comes into play here. If you have a Toyota, especially a Liteace, Townace, or Masterace, you should know about the 900-3673 bearing. This part usually connects directly to the original OEM part 90043-63369. Maintaining it is vital for your car’s long-term health. This whole tutorial will teach you everything you need to know about this key aspect in language that is simple to understand.

Understanding the 900-3673 Bearing
Genuine OEM Toyota part 90043-63369 serves as the right-hand front axle hub bearing on some Toyota vehicles. People often use the shorthand “900-3673 bearing” to look for it, which is another name for it. So, what is it really? This part is a kind of radial ball bearing. Simply put, this ring (called a race) contains a set of perfectly smooth, hardened steel balls.
This ring reduces friction for easy wheel rotation. Its main job is to let your front tire turn smoothly while also supporting a lot of weight from your car, especially when you turn.This is a crucial portion of the front end of your Toyota that keeps it safe and running smoothly. It keeps your wheel securely attached and lets it turn without too much wear or friction.
Key Features and Specifications of a Quality Bearing
If you know what makes a good bearing, you can see why it’s so vital to get the appropriate one. The search results don’t provide us all the technical details of the 90043-63369, but we can look at what the industry considers to be high-quality wheel hub bearings to get an idea of what to look for. These qualities make sure the part can handle the daily wear and tear of driving. Here is a list of important features that reliable bearings usually have
Feature | Description |
Material & Durability | High-quality bearings use high-chrome steel (like GCr15) or other hardened steels (42CrMo/50Mn) for strength and long life. |
Sealed Construction | Many modern bearings come with built-in seals to keep lubricant in and contaminants like dirt and water out . |
Precision Engineering | Bearings are manufactured to strict tolerance levels (such as P0, P6, P5) to ensure smooth operation with minimal vibration. |
Integrated Design | Many, like the related VKBA3673 model, use a unitized design that combines the bearing and hub for easier installation and better reliability . |
Load Capacity | Bearings are rated for dynamic and static loads, indicating their ability to handle forces while rotating and while stationary . |
Putting these features together makes a part that is strong, dependable, and safe. High-chrome steel, for instance, makes the metal robust enough to last for thousands of kilometers without altering shape or wearing down.This precise construction ensures the wheel does not move or wobble. This is very important for your car’s stability and control.

Common Symptoms of a Failing 900-3673 Bearing
In most cases, a faulty wheel bearing doesn’t just stop working. Once you know what to look at, you will avoid more costly maintenance, but more importantly, a hazardous situation on the road.A low-pitched buzz or grind from the wheel is one of the most noticeable signs. The noise tends to increase in volume when you accelerate or turn the motor vehicle. The weight of the car changes and the pressure on the bearing changes when the car turns.
Another evident symptom is that the steering wheel shakes or feels loose, especially when you accelerate up. You may notice a wobble, which means that the bearing has worn out and can’t hold the wheel assembly tightly anymore.If the wear is severe, you might also hear a clicking or snapping sound during slow turns. Furthermore, a failed wheel bearing can disrupt the anti-lock brake system (ABS) in modern cars because it directly affects the integrated wheel speed sensor.. If you detect any of these indications, you should definitely have a mechanic look at your automobile right soon.
The Importance of Genuine OEM Replacements
When a wheel bearing or other important part breaks, you might want to get the cheapest replacement you can find. But there is one area where cutting corners can really hurt you. Choose an official OEM Toyota bearing like the 90043-63369 for a part designed and built specifically for your car. The company that creates real parts sets the exact standards for quality and specs that they must meet. This makes sure that it fits perfectly and works the best.
Aftermarket parts may be cheaper at times, but they could not be as exact, constructed of good materials, or last as long.A poorly made bearing can wear out quickly, fail prematurely, and compromise your safety. Conversely, installing a genuine OEM part helps maintain your car’s condition and can even protect its resale value. Genuine parts offer the assurance of manufacturer quality checks and typically come with a warranty.

Compatibility and Vehicle Models
Before purchasing a Toyota 90043-63369 bearing, make sure that it fits your vehicle. Individuals are aware that the bearing is a good substitute to replacement of the Toyota Liteace, Townace and Masterace cars that share the chassis of S402M, particularly those manufactured between 1992 and 1996. Attach it to the car’s right front axle.
You need to re-check as there is a possibility that a single part number can fit many different models or years and the left and right bearing could be different. The easiest way to be certain that you are getting the right thing is to use your car VIN (Vehicle Identification Number). To ensure that your desired part will be compatible with your car, you can check it on VIN on YoshiParts and other parts websites. This is an added precaution that will save you the inconvenience and expense of acquiring a wrong part.
Genuine Toyota Bearing vs. A Cheap Alternative
When replacing a wheel bearing, the choice between a Genuine Toyota part and a cheap alternative often comes down to long-term value versus short-term savings. Here’s a quick breakdown:
Conclusion
The 900-3673 bearing, which is also called the Toyota 900-3673 bearing, is a lot more than just a set of ball bearings. It is a highly critical safety item that was designed with a lot of attention. It impacts how your automobile drives, keeps steady, and handles in general. You need to know how your Toyota works, how to determine when it’s worn out, and most importantly, how to acquire a decent, legal replacement. This will keep it running well and keep everyone on the road safe. There are other reasons to check on your car’s maintenance and replace damaged bearings on time besides getting rid of the noise. It’s also a technique to keep your automobile running longer and feel better. When you need a new part, trust the one that was made just for your car.
FAQ’s
1. What does the 900-3673 bearing actually do in my Toyota?
The 900-3673 bearing (the real item is 90043-63369) is what connects your stationary axle to your spinning wheel in a smooth, low-friction way. Its major purpose is to hold up the weight of your car while letting your wheel spin freely.Your wheel would grind against the axle without a good bearing, which would cause a lot of heat, friction, and a big safety risk.
2. I hear a humming noise when I drive. Could 900-3673 bearing?
A worn out bear in a wheel will produce a constant humming or grinding sound which increases with acceleration.You can diagnose this yourself by driving slowly in an empty parking lot while making gradual right and left turns. If the noise grows louder when you turn right—which shifts the vehicle’s load to the left side—it typically indicates a faulty left wheel bearing. The opposite is also true.
3. Can I replace just one bearing, or should I do both sides at the same time?
The replacement of the front bearings is not always essential but also it is a good idea, as a rule. And as you drive the bearings on the same axle wear out at the same rate. When one has been worn out, then the other is not very far behind. Replacing them in pairs makes sure that they work well together and can save you money on labor expenditures in the future.
4. Is it safe to drive my car if I suspect a bearing is failing?
We highly advise against driving any substantial distance with a suspected poor bearing. If a bearing is too worn, it can suddenly stop working or break apart, which could make the wheel stop working or even fall off the car. This is quite risky.If you hear the warning signs, have a qualified mechanic check out your car straight away.
5. Why is a genuine Toyota part better than a cheaper aftermarket bearing?
The 90043-63369 is a genuine Toyota bearing that is machined to the precise specs, quality of material and tight tolerances that your car model requires. A generic bearing may fit in (because it is cheaper) but in general it does not last as long or as well. This might make it louder, shorten its life, and possibly make it dangerous. The real part is worth the money for safety and long-term dependability in this important portion.