Parts for Whirlpool KSM8990OB1: 03 - Case, Gearing And Planetary Unit Parts

Covers and protects the attachment hub on your stand mixer. Replace if the original cap is cracked, missing, or worn for a finished look and protection.

Replacement mounting screw for stand mixers. Secures internal components and housing parts. Order a new screw if yours is stripped, missing, or damaged.

This replacement gear restores the drivetrain that moves the washer tub or agitator, helping your appliance resume normal agitation and spin performance. Durable molded construction replaces worn or stripped gears for smoother operation. What it does:

• Transfers motor/transmission rotation to the tub or agitator so the washer can agitate and spin
• Replaces a worn, stripped or broken gear that causes incomplete or no agitation/spinning
• Helps eliminate grinding, slipping or unusual noises coming from the washer transmission area
• Works as a direct-fit component when the original gear has failed

• Disconnect power and water supply before starting any repair
• Access may require removing the washer cabinet or transmission cover; follow steps
• Inspect mating parts (shaft, clips, seals) and replace if damaged to prevent repeat failure
• Tighten and seat gear per torque/fit guidance; do not force or hammer into place

This factory replacement screw fastens appliance components securely. Use it to replace lost, stripped, or corroded hardware and restore a snug, rattle-free fit and proper alignment of panels and assemblies.

• Secures panels, brackets, and internal components to their mounting points
• Replaces missing or damaged fasteners to maintain correct alignment
• Helps eliminate vibration and rattling caused by loose hardware
• Restores the original fit with OEM-matched threads and dimensions

• Disconnect power and shut off water or gas supplies before servicing
• Use the correct driver bit that matches the screw head to avoid stripping
• Replace one fastener at a time to keep parts aligned
• Tighten snugly; do not overtighten to prevent stripped threads or cracked plastic

This 8-32 x 5/8 screw replaces missing or damaged hardware specified by the manufacturer to secure panels, brackets, and internal components in your appliance. Restores a tight, rattle-free fit to help prevent vibration and misalignment.

• Provides the correct 8-32 thread and 5/8-inch length where specified
• Secures sheet-metal panels, brackets, and internal assemblies
• Replaces missing, stripped, or corroded screws
• Symptoms include loose or rattling panels, misaligned parts, or hardware that won't stay tight

• Disconnect power; shut off gas before servicing
• Support panels/components while removing or installing hardware
• Start threads by hand to avoid cross-threading; tighten only until snug
• Match the original screw's location and orientation for proper fit

Mixer stops under load or won't run? This motor restores mixing power. Requires housing disassembly and pin removal. Moderately difficult repair.

Replacement mounting screw for stand mixer panels, brackets, and trim. Secures internal components to keep parts aligned. Replace if missing, stripped, or rusted.

Fixes intermittent or erratic speed control on stand mixers. This electronic board regulates motor power for accurate, steady speeds across all settings.

Protective guard trim piece for stand mixers. Shields internal components from debris and accidental contact. Replace if cracked, broken, or missing.

This is a replacement power cord designed for commercial-style stand mixers. It connects the mixer to the electrical outlet and supplies power to the motor and controls. Replace this cord if it is frayed, damaged, has exposed wiring, or if the mixer intermittently loses power during use.

Small but critical: this groove pin locks the planetary/drive assembly to the mixer shaft so the beater is driven firmly and wobble-free. Replacing a bent or sheared pin restores solid, reliable mixing.

What it does

• Secures the planetary to the drive shaft to transmit torque
• Helps fix beater not-turning, slipping, or intermittent drive
• Reduces wobble or knocking from a loose planetary
• Replaces pins that are bent, mushroomed, or missing

What’s included
One groove/retainer pin (sold individually).

Install notes

• Unplug the mixer; work on a padded surface
• Support the planetary; drive the old pin out with a small punch
• Align holes and tap the new pin in until seated flush—don’t overstrike
• Inspect the planetary and shaft holes for elongation; re-grease if opened

This is a small knurled screw used to secure components on a stand mixer. The knurled design allows for hand-tightening without the need for tools. Replace this screw if it is stripped, corroded, or missing, which can cause parts to become loose during operation.