Kp20b0f4bb Parts

This gearcase transfers motor power to the wash tub and agitator, restoring normal agitation and spin cycles for top-load washing machines. Replaces a worn or failed transmission assembly to recover wash performance. What it does:

• Converts motor rotation into the low-speed/high-torque motion needed for agitation and the higher-speed motion for spin
• Restores normal agitation and spinning when a washer fails to move or completes cycles poorly
• Reduces grinding, clunking, or slipping noises caused by worn internal gears
• Helps stop leaks of internal gear lubricant when the seal or housing is compromised

• One gearcase assembly

• Disconnect power and shut off water before starting; follow the washer service manual for safe disassembly
• Gearcase replacement may require removal of the inner tub, drive coupler, and mounting hardware—have basic hand tools ready
• Inspect surrounding seals, gaskets, and mounting bolts; replace any damaged components to prevent leaks

The Transmission Housing is an OEM part for Whirlpool mixers. This component encases the transmission, which is responsible for transferring power from the motor to the mixing attachments. The housing ensures the transmission is protected from external damage and maintains the alignment and stability of internal components.

Over time, the transmission housing can become compromised due to regular use, exposure to food and moisture, or accidental impacts. Damage to this part can lead to misalignment, which affects the performance of the mixer.

Symptoms of a bad transmission housing include:

• Unusual noises during operation
• Mixing attachments not spinning properly
• Visible cracks or damage to the housing
• Leaking grease from the transmission area

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

Color: Metallic Chrome

This silver Planetary assembly is the lower drive unit of a stand mixer that carries the beater shaft. Replacing a worn or loose planetary restores smooth, consistent planetary motion and reliable attachment rotation for dependable mixing performance.

• Transfers motor power to the beater and creates true planetary mixing action
• Houses the beater shaft and interfaces with the lower gear train
• Helps maintain stable beater-to-bowl alignment at the bottom of the mixer head
• Typical failure symptoms: beater not turning or stalling, grinding/clicking from the lower head, or noticeable wobble/excess play in the planetary

• Unplug the mixer and remove the bowl and beater before service
• Drive out the roll pin to remove the old planetary; transfer and reuse any model-specific hardware
• Clean and re-grease gears with food-grade mixer grease during reassembly, if needed
• Reinstall the planetary and pin; verify beater-to-bowl clearance per the owner's manual before use

This lower gearcase housing encloses and supports the planetary and lower gear train in a stand mixer. Replacing a damaged housing restores alignment and helps contain lubrication for quieter, consistent mixing performance.

• Houses the lower gear train and planetary shaft to maintain alignment
• Provides a sealed cavity to help retain grease around gears
• Replaces cracked, stripped, or warped housings that cause wobble or noise
• Helpful when you see grease seepage or cosmetic damage to the lower case

• Unplug the mixer and remove bowl and attachments before service
• Open the motor head and remove the planetary/gear stack as required
• Transfer components to the new housing; renew food-grade mixer grease if servicing gears
• Reassemble and verify beater-to-bowl clearance and smooth operation

This spring-style roll pin secures mating parts on a shaft or linkage. It keeps components tightly aligned so gears, levers, or hubs stay in place during operation, helping prevent looseness, slipping, and noise.

• Expands inside aligned holes to lock components together on a shaft or hub
• Helps maintain alignment and transmit torque in rotating or linkage assemblies
• Common failure signs: wobble, rattling, parts shifting out of place, or intermittent operation
• Replace if the original pin is bent, cracked, sheared, missing, or no longer holds a tight fit

• Disconnect power and work on a stable surface with the appliance cool
• Support the assembly; use a correctly sized roll-pin punch and light hammer taps to drive the old pin out
• Align holes carefully and press/tap the new pin in flush; do not enlarge the hole
• Wear eye protection and avoid striking cast or plastic parts directly

Restore your stand mixer's drive system with this gearcase. It serves as the transmission, routing motor power to the planetary while enclosing and supporting the gears for smooth, consistent mixing performance. What it does:

• Directs motor power through the gear train to the planetary/attachment hub
• Encloses, supports, and aligns the gears; retains transmission grease
• Helps address grinding/rumbling, grease leaking from the mixer head, weak or stalled planetary, or excessive vibration

• 1 gearcase

• Unplug the mixer; remove bowl and attachments; protect the work area from grease
• Remove the motor head cover and fasteners; separate the case and note gear stack orientation
• Transfer gears/seals as needed and repack with food-grade grease if servicing the gear train
• Reassemble, tightening screws evenly; test at low speed before normal use

This planetary is the replacement internal gear assembly that helps transfer motor motion to the agitator/impeller for proper wash action. It restores drivetrain engagement so the washer can agitate and spin more effectively. What it does:

• Replaces a worn or damaged planetary gear assembly that causes weak or no agitation/spinning
• Transmits motor torque to the transmission and agitator/impeller for normal wash cycles
• Can address symptoms like intermittent agitation, loud grinding noises, or slipping during cycles
• Fits into the transmission/gearcase as a direct replacement when the original planetary fails

• Inspect surrounding seals and gears during replacement
• Disconnect power and water supply before beginning any repair
• Use proper tools and follow OEM diagram for correct orientation and torque; avoid forcing parts to prevent damage
• Replace any worn fasteners or gaskets found during installation

Color: Blue Steel

This gearcase is the main transmission assembly that transfers motor torque to the washer's tub and agitator, restoring normal agitation and spin performance when the original gearcase fails. What it does

• Converts motor rotation into the gear reductions needed for agitation and spin cycles.
• Commonly replaced for symptoms like no agitation, slow or failed spin, grinding or clunking noises during cycles.
• Contains internal gears and bearings that can wear or break, causing irregular movement or loss of drive.
• Works with the washer's motor coupling and drive components to re-establish reliable drum motion.

• One gearcase (transmission) assembly.

• Disconnect power and water supply before beginning any repair.
• Support the washer cabinet and tub when removing the old gearcase to avoid damage or injury.
• Gearcase assemblies are heavy and contain grease—expect some lubricant exposure; clean hands and work surfaces after installation.
• Use model-specific service manual or exploded parts diagram for proper alignment and reassembly; replacement may require transfer of seals or mounting hardware.