Bosch Dryer WTG86403UC Parts

This heat exchanger is the side-mounted water matrix assembly that manages fill, circulation, and controlled heat storage in the wash system. Replacing a cracked or clogged exchanger restores proper water flow and helps prevent leaks and poor cleaning.

• Directs incoming water through internal channels to regulate fill and pressure
• Works as a thermal reservoir to moderate wash temperature changes
• Common failure signs: water leaking from left side, poor water circulation/filling, error codes related to water intake, or visible cracking/discoloration of the matrix
• Also causes extended cycles or incomplete fills when restricted by limescale or debris

• Disconnect power and shut off water before service; pull unit out for left-side access
• Keep unit level; have towels ready—residual water may drain from hoses
• Photograph hose routing and sensor/clip locations before removal; move clamps to reuse
• Inspect and replace any worn O-rings, seals, or clamps during reassembly to prevent leaks

Replacement cover for dryer housing. Restores finished appearance and protects internal components. Replaces cracked, broken, or missing covers.

Dryer drum baffle lifts and tumbles clothes while circulating air evenly. Replace if cracked, loose, or causing noise. Verify fit with your model number.

This is a blower wheel that mounts inside the dryer's blower housing and circulates heated air through the drum during the drying cycle. It is driven by the drive motor and pushes air through the lint filter and exhaust vent. Replace this part if your dryer takes too long to dry clothes, makes squealing or rattling noises from the blower area, or fails to circulate air properly.

The Sealing is an OEM part for Bosch dryers. This part is responsible for creating a tight seal around the lint filter housing, preventing lint and debris from escaping into the dryer and ensuring efficient airflow during the drying process. It traps lint and prevents it from circulating within the dryer, reducing the risk of clogs and potential fire hazards.

A bad sealing can occur due to wear and tear, exposure to heat and humidity, or accidental damage. Signs of a faulty sealing include visible cracks, gaps, or a loose fit around the lint filter housing.

Symptoms of a bad sealing include:

• Lint escaping from the lint filter housing  
• Reduced airflow or inefficient drying  
• Increased risk of lint buildup  

Replace your worn-out or damaged sealing with this genuine OEM Bosch part to restore your dryer. This Bosch part can also be used on Thermador and Gaggenau appliances.
 

Dryer won't start when door closes? This door switch detects when the door is shut and signals the control board to begin cycles. Simple fix.

Dryer won't start or drum won't turn? A faulty motor assembly is often the cause. This part powers both the drum and blower. Moderate difficulty repair.

Fix a dryer making loud noises or not tumbling with a new drum. This part holds clothes during the drying cycle and may rust, dent, or crack over time.

Tension roller for dryers. Mounts to the support bracket to maintain proper belt tension around the drum. Replace if worn, squeaking, or damaged.

This is a replacement seal used to restore a watertight connection and help prevent leaks in compatible appliances. It provides a simple, low-cost way to replace a worn or damaged sealing element. What it does:

• Creates a secure, leak-resistant barrier at the mating surfaces where installed
• Helps stop visible leaks and drip symptoms associated with damaged seals
• Restores intended sealing performance when original gasket or seal is deteriorated

• Inspect mating surfaces for damage or debris and clean before installing the new seal
• Make sure the seal seats evenly and is fully inserted into its groove or recess
• Replace only with the correct OEM part number for a proper fit
• Disconnect power and water supply and follow appliance safety procedures before servicing

Replacement mounting bracket holder that secures internal components in place. Install when original is cracked, broken, or missing to restore proper alignment.

This electronic program power control module regulates a dishwasher's control functions and user interface, restoring responsive cycle selection and reliable operation when the original module fails. Replaces a damaged or unresponsive control board. What it does:

• Controls power to the appliance's program circuits and user controls.
• Manages cycle start/stop commands and program selection logic.
• Resolves symptoms like a blank display, unresponsive buttons, or failure to start cycles.
• Supports proper communication between front panel and internal components.

• High-level replacement only; disconnect power at the breaker before servicing.
• Handle the board by its edges and avoid static discharge—use an ESD wrist strap if available.
• Verify model/part number matches before installation; some models require re-seating connectors or grounding.

Fix clothes not drying or long dry times with this dryer heating element. Restores normal heat output when your dryer runs but stays cold. Direct replacement.

If your dryer overheats or shuts down unexpectedly, this cooling system assembly directs airflow to protect electronics from heat buildup and damage.

Is your dryer display blank or unreadable? This control panel display restores clear visibility of cycle settings, time remaining, and status alerts.

Replacement drum taper cone for your dryer. This structural component secures the drum assembly. Order a new taper if yours is cracked or damaged.