• The components of a given Bosch microwave depend upon its included features and age.Microwave image by andrey polichenko from Fotolia.com
  
  Bosch produces a range of microwave ovens offering features like convection cooking, countertop or built-in installation with finishes in black, white or stainless steel. As of September 2010, Bosch's website prices its microwaves at between $424 and $954. With the manufacturer's wide range of products, there are varying components in different microwaves. Nonetheless, all the models have certain basic components in common, though they may vary slightly in form or material. For this reason, when repairing a Bosch microwave, find the piece designed for your specific model.
  
  

Glass Cooking Tray

• The glass cooking tray is the dinner plate-size disc inside the microwave on which you place foods. The tray is typically removable and bears an item number, 1052592. A single Bosch replacement tray costs $67.90. The tray measures approximately 14 inches in diameter.
  
  

Rotating Ring Assembly

• The rotating ring assembly consists of three rigid spokes extending in a flat plane outward from a central hub. Each spoke measures just under 5 inches, measuring from the central point of the hub. At the center of the hub, a grooved hole allows the assembly to connect to the microwave's motor elements. At the exterior end of each of the spokes, a small white wheel allows the assembly to rotate smoothly. The rotating rings' assembly transfers the movement of the motor housing to the glass plate, which it supports. The piece costs $28.90. The assembly's item number is 1385101.
  
  

Magnetron

• A component central to the microwave's functioning, the magnetron is a diode electron tube that creates microwave energy through the functioning of its anode, filament or cathode, antenna and magnets. The Bosch magnetron part number is 1052596. A vital component to operation, the magnetron costs $121.60. It measures approximately 5 x 5.5 x 4 inches.
  
  

Lamp

• The lamp for a Bosch microwave measures approximately 2.5 x 2 inches, including the bulb's housing. The lamp's item number is 1050215, and it costs $25.95 for the replacement part.
  
  

Motor

• The Bosch microwave motor is roughly round in shape with a diameter of approximately 2.5 inches. Powering the rotating movement of the food tray during microwave operation, the motor runs at 3.0 watts, 50/60 Hz and produces 2.5/3 rotations per minute. The item number is 1044273. You can purchase a new motor for $21.15.