Mdbh945aw Parts

Attaches to the inner tub for the upper rack

This wash arm cap secures the dishwasher spray arm to its hub so it spins freely and distributes water. Replace a worn or missing cap to restore wash performance and keep the spray arm from loosening or coming off.

• Locks the spray arm onto its post/hub for proper alignment
• Allows smooth rotation for even water spray coverage
• Helps prevent wobbling, noise, or the arm detaching during cycles
• Common signs: spray arm falls off, is loose, doesn't spin, or dishes aren't getting clean

• Disconnect power; open the door and remove the rack to access the spray arm
• Unscrew and remove the old cap; lift off the spray arm if needed
• Seat the spray arm and hand-thread the new cap; tighten snugly without over-tightening
• Spin the spray arm by hand to ensure free movement before running a cycle

Long tub insulation that fits the appliance's inner tub, reducing operating noise and helping stabilize temperature around the tub for quieter, more consistent performance. Replaces worn or damaged insulation to address rattles and drafts. What it does:

• Dampens noise and vibration when insulation is torn, compressed or missing.
• Helps limit heat loss and reduce cold spots that can cause condensation or longer warm-up times.
• Reduces rattling or knocking caused by loose or degraded insulation.
• Intended for specific Whirlpool tubs—verify model fit before ordering.

• Disconnect power (and water supply for washers) before starting any repair.
• Remove outer panels or drum components per the service manual; insulation may be held with clips, adhesive, or fasteners.
• Wear gloves and a dust mask—insulation fibers can irritate skin and lungs.

Lower wash arm redirects pressurized water across the dishwasher's lower rack to rinse and remove food and residue, restoring intended wash coverage and improving cleaning performance. What it does:

• Directs jets of water through multiple spray holes to rinse dishes on the lower rack.
• Helps remove stuck-on food, film and spotting on plates, bowls and cookware.
• Replaces cracked, clogged or broken lower spray arms that can cause poor cleaning or leftover residue.
• Works with the dishwasher's pump flow to maintain proper spray pattern across the lower rack.

• Refer to your model's parts diagram and instructions; the arm commonly snaps or threads onto the lower spray arm mount and procedures vary by model.
• Always disconnect power to the dishwasher before servicing; follow basic safety precautions.
• Clean the filter and any debris from spray holes before installing to avoid re-clogging.
• Inspect the mounting clip or retaining nut when removing the old arm and replace if damaged.

Bottle with brush. Color: Biscuit paint. It's point-six fluid ounces.

Replacement fill hose that routes water from the household supply to the appliance's ice maker and water dispenser, restoring proper water delivery and helping prevent leaks or pooling from a damaged line. What it does

• Directs water from the inlet valve to the ice maker and dispenser for ice production and dispensing.
• Maintains steady water flow; prevents kinks and pinched lines that reduce flow.
• Replace if cracked, split, collapsed, or leaking.
• Common symptoms: reduced or no water to the dispenser or ice maker, visible leaks, or pooling under/behind the appliance.

• Turn off the water supply and disconnect power before servicing to avoid flooding and electrical hazard.
• Inspect and replace clamps or fittings as needed; ensure proper seating and a snug, leak-free connection without overtightening.
• Check for kinks in the hose and route it so it won't be pinched by the appliance or cabinetry.
• After installation, turn the water back on and test for leaks at all connections.

This upper rack wheel and axle assembly lets your dishwasher's top rack glide smoothly and stay level. Replace a cracked or missing wheel to fix hard-to-slide racks, scraping noises, or a rack that slips off the rail.

• Provides rolling support for the upper rack along the rails
• Helps keep the rack aligned to prevent sagging or derailment
• Replaces worn, cracked, or seized wheel assemblies
• Common symptoms: rack hard to slide, wheel wobbles/missing, grinding or scraping sounds, rack coming off track

• Disconnect power to the dishwasher for safety
• Pull out the upper rack and remove the rail end caps if needed
• Release and remove the damaged wheel/axle assembly from the rack
• Snap the new assembly into place, reinstall end caps, and test rack movement

This dishwasher drain hose channels wastewater from the pump to your home drain or air gap. Replacing a cracked, kinked, or clogged hose restores proper draining performance and helps prevent leaks or water backing into the tub. What it does:

• Routes wastewater from the dishwasher to the household drain or air gap
• A damaged, kinked, or blocked hose can cause slow/no drain, standing water, or leaks
• Visible splits, soft spots, or persistent odors/backflow are common signs the hose should be replaced
• Restores reliable draining and helps protect surrounding cabinets and flooring from water damage

• 1 drain hose

• Disconnect power and shut off water before servicing
• Pull the dishwasher forward and place a towel or pan to catch residual water
• Match the original routing and maintain a proper high loop or air gap per local code to prevent backflow
• Secure connections with clamps, ensure the hose isn't kinked, and run a test cycle to check for leaks

This little door seal goes on the corner of the dishwasher door. There are two of these seals - one in each corner. It is recommended to order and replace both. If you need pushnuts, order 99002756.

Used on the end of the rails to prevent the upper rack from falling out.

This top wash arm retainer secures the dishwasher's upper spray arm so it spins freely and stays aligned, helping maintain proper water distribution for upper-rack cleaning. Replace a cracked or worn retainer to reduce wobble and misalignment. What it does:

• Holds the upper/ top spray arm in place on the spray assembly so the arm can rotate correctly.
• Prevents the spray arm from slipping or wobbling during the wash cycle.
• Helps restore proper water spray coverage to the upper rack when the original retainer is broken or worn.
• Compatible with standard upper spray arm mounting—no modification required.

• Includes: 1 top wash arm retainer

• Disconnect power to the appliance before beginning any repair.
• You may need to remove the upper rack and/or the spray arm to access the retainer; keep parts organized for reassembly.
• Inspect the spray arm and attachment for damage or debris while replacing the retainer.
• Use hand tools only.

Screw: 8-16 x 3/8 inch.

Specs: No.8X1/2 HEX WASHER HEAD

Replacement rinse aid dispenser knob restores a simple, reliable way to set and dispense rinse aid in the dishwasher. It gives a clear tactile control for adjusting rinse aid release so dishes dry and rinse with fewer spots. What it does:

• Replaces a cracked, stripped, missing, or hard-to-turn rinse aid control knob
• Allows you to set the dispenser level or open/close the rinse aid dosing mechanism
• Helps resolve problems where the knob won't turn or is detached from the dispenser
• Matches the original dispenser interface for correct fit and operation

• Always disconnect power to the appliance before servicing (unplug or switch off the breaker)
• Access the rinse aid dispenser per the dishwasher service manual or OEM instructions
• Align the knob on the dispenser post and press/snap it into place; avoid forcing or overtightening

Small replacement screw that secures panels and internal components on compatible appliances. Restores proper fastening to reduce rattling and loose parts so controls and panels stay aligned during normal use. What it does:

• Secures panels, brackets, and small components to the appliance frame or assemblies.
• Helps stop rattling, vibration-related noise, and movement from loose parts.
• Replaces a missing, worn, or stripped fastener to restore proper mounting.
• Used wherever the original manufacturer specified this screw in service diagrams.

• Disconnect power and water before working on the appliance to avoid shock or injury.
• Match the replacement screw to the original by fit and thread before installation; do not force mismatched fasteners.
• Start the screw by hand to avoid cross-threading; tighten securely but avoid over-torquing which can strip threads or damage components.
• Refer to the appliance's service manual or parts diagram for exact location and any torque or threadlocker recommendations.

The Cabinet Mount Bracket secures a built-in appliance to the surrounding cabinetry. Replacing a bent or missing bracket restores a tight, rattle-free installation so the unit stays level and aligned during everyday use.

• Anchors the appliance to the cabinet or side walls to prevent shifting or tip-out
• Maintains flush, level alignment with adjacent cabinets and countertop
• Helps reduce vibration and rattling noises during operation
• Replace if the original bracket is bent, cracked, corroded, or missing

• Disconnect power and any utilities before starting work.
• Support the appliance and pull it forward enough to access the mounting area.
• Reuse manufacturer-specified screws or approved replacements; tighten securely without overtightening.
• Secure both sides as originally configured and test operation.