Parts for Bosch B20CS51SNB/01: Evaporator / Icemaker Parts

This Bosch filter has an activated carbon media that is designed to reduce chlorine taste and odor, sediment, lead, mercury, and other impurities from your drinking water. Used on many Bosch refrigerators including the Evolution 500 Series model B20CS50SN, Evolution 800 Series model B20CS80SN, and the EVOLFLTR10 filtration system. For best performance, filter should be changed every 6 months or 400 gallons. Pressure range: 25-125 psi. Temperature range: 33-100 F. Flow Rate: 0.5 gallons per minute.

This defrost heater melts frost and ice from the evaporator coil so your refrigerator or freezer can maintain proper airflow and temperature. Replaces a failed heater to restore normal automatic defrost cycles. What it does:

• Heats the evaporator coil during defrost cycles to remove frost and ice buildup
• Helps restore proper airflow and consistent cooling in the fresh food or freezer compartment
• Common symptom: visible frost or thick ice on the evaporator or inside the freezer
• Common symptom: intermittent cooling, long run times, or noisy defrost cycles

• One defrost heater

• Disconnect power before servicing to avoid shock or injury
• Heater is mounted near or on the evaporator; access usually requires removing interior panels and the evaporator cover
• Inspect defrost thermostat and control board when replacing the heater; replace only confirmed failed components
• Handle the heater element carefully to avoid bending or damaging the coil; secure routing of wiring and clips during reassembly

This temperature sensor monitors appliance temperature and sends temperature readings to the control board so the appliance can regulate heating and cycles. It's a direct-fit replacement designed to restore correct temperature feedback. What it does:

• Measures water/air temperature and converts it to a signal for the control board
• Helps the appliance maintain proper cycle temperatures and timing
• Can resolve temperature-related errors, incorrect water temperature, or failed cycle heating
• Works with the appliance's existing wiring harness and control system

• One temperature sensor

• Disconnect power to the appliance before starting any repair
• Handle the sensor and connector carefully to avoid damage to the probe or wiring
• Reinstall in the same orientation and secure all connectors for accurate readings

This holder is a replacement mounting bracket that secures internal components in compatible Bosch appliances, restoring proper alignment and support for related parts. It helps reduce vibration and keeps assemblies positioned for reliable operation. What it does:

• Provides a firm mounting point to hold wiring, sensors, or small assemblies in place
• Prevents component movement that can cause noise, misalignment, or intermittent connections
• Restores correct spacing to enable consistent operation of adjacent parts
• Fits into the appliance's existing bracket locations for a direct replacement

• One holder mounting bracket

• Recommend power off and appliance unplugged before installing
• Access may require removing a panel or trim; keep fasteners organized
• Install in the original orientation and secure with the same hardware where applicable

This replacement holder is the OEM-style mounting clip that secures internal dishwasher components so they stay in place for reliable operation. Restores proper component alignment and prevents rattling or parts coming loose. What it does:

• Secures and supports the specified internal component to the appliance chassis
• Keeps parts aligned to prevent rubbing, vibration noise, or intermittent operation
• Helps maintain the correct position of adjacent parts for smooth cycle performance
• Replaces damaged, cracked, or missing clips that allow components to shift

• Basic hand tools usually required; disconnect power and water before beginning repairs
• Inspect surrounding mounts and clips; replace any additional damaged hardware for best results
• Reuseable screws or fasteners—reuse original fasteners unless replacements are specified

This damper assembly controls oven vent airflow so the oven reaches and holds the correct temperature and venting. Replaces a worn or stuck vent flap to restore normal oven cycling and heat distribution. What it does:

• Opens and closes the oven vent to regulate airflow during bake, broil, and self-clean cycles
• Helps the oven maintain temperature by allowing excess heat to escape when needed
• Commonly linked to symptoms like uneven baking, persistent high internal temperature, or a stuck vent that won't open
• Functions as a direct replacement part when the existing vent flap or actuator is damaged or fails

• Disconnect power to the appliance before attempting service
• Access may require removing the oven rear panel or control housing; follow the OEM service manual
• Handle the damper gently to avoid bending the flap or damaging the actuator linkage

Replacement fan motor that circulates air to help maintain proper operating temperature and protect components from overheating. Restores airflow to stop noisy operation, vibration, or a fan that won't run. What it does:

• Drives the appliance cooling/evaporator/condenser fan to move air across coils and components.
• Restores proper airflow to improve cooling performance and reduce overheating risk.
• Stops common symptoms like loud humming/grinding, excessive vibration, or a fan that does not spin.
• Helps prevent related issues caused by stalled or weak fans.

• Disconnect power to the appliance before beginning any repair.
• Handle the fan blade and motor shaft carefully to avoid damage; use basic hand tools.

This replacement screw is a direct-fit fastener used to secure panels and small components. It restores proper attachment and helps eliminate loose or rattling parts for a secure appliance fit. What it does

• Secures panels, brackets, and trim to restore proper alignment and prevent movement
• Helps stop rattling, vibration noise, and parts that shift or come loose
• Matches OEM thread and length for reliable fit when it's the correct screw for the repair
• Used where original mounting hardware is missing, stripped, or damaged

• One replacement screw

• Disconnect power or unplug the appliance before starting any repair
• Use the correct screwdriver or bit to avoid stripping the head
• Do not overtighten; snug until secure to avoid thread damage or cracked panels
• This screw matches the original part by comparing size, thread, and head style before installation

This fixture is a small mounting clip used to secure internal components in place, restoring proper alignment and reducing noise from loose parts. It's a simple replacement that helps maintain appliance stability and fit. What it does:

• Secures panels, hoses, or internal assemblies to prevent movement and rattling
• Restores correct alignment for attached components
• Helps reduce vibration noise caused by loose fittings
• Works as the original-style mounting clip used in the appliance's assembly

• One fixture/mounting clip

• Disconnect power (and water if applicable) before beginning any repair
• Handle small parts carefully and keep track of fasteners
• Use basic hand tools as needed; avoid forcing parts into place

The Icemaker is an OEM part for Bosch refrigerators. It is responsible for automatically producing batches of ice using only water and energy from the refrigerator. The icemaker's advanced mechanisms utilize a precision thermoelectric design to efficiently freeze water into uniform cube-shaped ice pieces.

Causes of a bad icemaker can include mineral buildup or clogging in the water lines, defects in the freezing components, or damage to the ejection mechanism that dispenses ice.

Symptoms of an inefficient icemaker include:

• Slow or inconsistent ice production 
• Ice cubes sticking together or fused in odd shapes
• Water leaking or spraying from inside the icemaker area
• The icemaker not ejecting cubes properly or at all

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore models.
 

The Icemaker is an OEM part for Bosch refrigerators. It is responsible for automatically producing batches of ice using only water and energy from the refrigerator. The icemaker's advanced mechanisms utilize a precision thermoelectric design to efficiently freeze water into uniform cube-shaped ice pieces.

Causes of a bad icemaker can include mineral buildup or clogging in the water lines, defects in the freezing components, or damage to the ejection mechanism that dispenses ice.

Symptoms of an inefficient icemaker include:

• Slow or inconsistent ice production 
• Ice cubes sticking together or fused in odd shapes
• Water leaking or spraying from inside the icemaker area
• The icemaker not ejecting cubes properly or at all

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore models.
 

This cover is an OEM replacement access panel that protects internal components and helps keep moisture and debris out of the appliance. It restores a secure, finished appearance and maintains proper component protection. What it does

• Shields electrical and mechanical components from dust, debris, and accidental contact
• Helps prevent moisture intrusion that can cause corrosion or shorting
• Restores a snug fit and proper airflow paths where applicable
• Replaces damaged, cracked, or missing panels that leave internals exposed

• One replacement cover

• Verify power to the appliance is disconnected before starting any repair
• Installation generally requires basic hand tools; handle edges carefully to avoid cuts
• Follow OEM instructions for correct placement and fastener torque
• If fasteners or brackets are missing or damaged, replace them with OEM parts for secure installation

The Glass Plate is an OEM component specifically designed for Bosch refrigerators featuring adjustable shelves on extended rail systems. Constructed of tempered glass with a textured non-slip surface, it provides a sturdy organizing platform for fruits and vegetables.  

Causes of a cracked or damaged glass plate commonly relate to accidental impacts during unloading or cleaning. Prolonged door storage compressing edges necessitates replacement.

Symptoms of a bad glass plate involve:

• Snapped or disconnected glass from shelf brackets
• Chipped edges posing sharp hazards  
• Dislodged non-slip coating compromising holdings

Causes of a bad glass plate can include impacts shifting tempered pieces and altering shelf stability. Compromised friction coatings require replating to securely position produce.

This OEM Bosch part is also compatible with some Gaggenau, Thermador, and Dacor refrigerator models featuring adjustable glass shelves. Replace for dependable storage and presentation of perishable items.
 

This frozen food container is a replacement freezer drawer bin that holds and organizes frozen items so you can make full use of your freezer storage. Durable molded plastic keeps contents contained and visible. What it does

• Serves as the lower freezer storage drawer to hold frozen food safely.
• Restores proper storage fit when the original bin is cracked, warped, or missing.
• Helps prevent items from falling into lower compartments and improves organization.
• Compatible with standard freezer drawer slides and supports normal loading.

• Simple slide-in installation; align bin with drawer tracks and seat fully.
• No special tools usually required; handle gently to avoid cracking.
• Inspect rails and stops for damage before installing replacement.
• Disconnect power and remove food from the drawer area for safe access.

The Drawer Slide Rail is an OEM component specifically designed for select Bosch refrigerator-freezer combinations. Housing the freezer drawer, its extruded aluminum rails ensure a smooth roll-out. Weighed durability supports maximum ice storage.  

Symptoms of faulty freezer drawer rails involve squeaking or binding preventing easy access. Overloading causes deformation requiring timely replacement.

Causes of bad freezer drawer rails commonly include typical wear-reducing friction-fit. Exposure to spills hastens inner-track rust-out necessitating change.

Causes of a bad freezer drawer rail involve:

• Cracks occurring from excess weight imposition   
• Separated joining clips compromising alignment
• Worn steel bearings inhibiting silky movement

Note: Left side

This OEM Bosch part is also compatible with some Thermador, Gaggenau, and Dacor refrigerator-freezer models. Replace to retain convenient access through a dependable motion for many seasons of use.

The Rail is an OEM component for Bosch bottom-mount refrigerators. It supports adjustable glass shelves inside the fridge and freezer compartments.

Symptoms of a bad rail can include scratching shelves from misalignment, sagging shelves from loose fits, or complete rail disengagement interrupting functionality. 

Causes of a bad rail include:

• Shelves that do not slide smoothly  
• Gaps allowing items to fall through
• Loose fittings jeopardizing the stability of stored goods
• Sagging or dislodged shelves prevent access

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore models.

This replacement screw is a direct-fit fastener used to secure panels and small components. It restores proper attachment and helps eliminate loose or rattling parts for a secure appliance fit. What it does

• Secures panels, brackets, and trim to restore proper alignment and prevent movement
• Helps stop rattling, vibration noise, and parts that shift or come loose
• Matches OEM thread and length for reliable fit when it's the correct screw for the repair
• Used where original mounting hardware is missing, stripped, or damaged

• One replacement screw

• Disconnect power or unplug the appliance before starting any repair
• Use the correct screwdriver or bit to avoid stripping the head
• Do not overtighten; snug until secure to avoid thread damage or cracked panels
• This screw matches the original part by comparing size, thread, and head style before installation