4689923 Optimal Wheel Bearing
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Optimal Wheel Bearing | 4689923

Saab 9-3, 9-5, 900
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P/N: 4689923 Optimal
Description:
PERMANENT NLA
Cross References:
  • 39446001365
  • 891630
  • BAH00043

Wheel bearings allow the wheels of your Saab to turn freely, even under the vehicle's weight. They consist of an inner and outer race with a ball, roller, or needle bearings set between the two, letting one race remain stationary while the other turns.

Wheel bearings fail when insufficient lubrication prevents friction between the bearings and the races. Some bearings are serviceable and require being lubricated or greased regularly to prevent premature failure. This requires the removal of the bearing and grease to be packed into the bearing cage. This process is usually performed once a year or every 15,000 miles. Seal bearings are packed with grease and have the bearings sealed between the races and do not need servicing. However, if the seal fails, the bearing will lose its grease, and the bearings and races will wear.

Wheel bearings fail in several ways, but always because of excessive friction between the bearings and races. When there is friction between the bearings and the races, it creates heat and causes either the bearings or the races to wear down. Once the bearings or races are worn down, the bearings will not turn freely, causing an audible growl from the bearing and will eventually cause the bearing to come apart. In extreme cases, the bearing can seize and no longer turn.

The most common signs of failed or failing wheel bearings are a low growling sound and vibration from the wheel when turning. Sometimes determining which wheel the sound and vibration are coming from can be difficult. Driving your Saab in a zig-zag pattern at low speed will create an additional load on each wheel individually, making the problem wheel bearing growl louder, creating a more significant vibration to help you to pinpoint which wheel bearing it is.

View more Saab Wheel Bearings.

Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

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What This Optimal Wheel Bearing Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

Saab
99-02 - 9-3 Base, SE, Viggen
Front
03-03 - 9-3 Arc, Linear, SE, Vector
Front ~ Body Type: Convertible
99-01 - 9-5 Base, 2.3t, Aero, Gary Fisher, SE
Front
94-98 - 900 S, S Turbo, SE, SE Turbo
Front