Ryobi 89100121003 Replacement Screw Oem Lawn Mower

Product Description

The RYOBI 89100121003 is an OEM replacement screw with a D15X3T thread form and a nominal length of 62.5 millimeters, sized at 10 millimeters in diameter. This fastener is a genuine manufacturer part used in RYOBI and RIDGID power equipment assemblies, primarily lawn mowing equipment. OEM fasteners like this screw maintain the precise clamping loads and fitment tolerances the original assembly was engineered for. When a damaged or missing screw compromises a housing, deck, or drive component, this part restores the assembly to factory specification. Installers and service technicians handling RYOBI or RIDGID equipment sourcing this part directly replace the original hardware without modification.

This screw is intended for use in RYOBI and RIDGID lawn mowing equipment where the original OEM fastener is required. It is appropriate for residential power equipment service and repair scenarios. Because it is a genuine OEM part, it fits directly into the original mounting points without drilling, tapping, or substitution. Service technicians and equipment repair shops working on RYOBI or RIDGID branded mowers will find this fastener slots into the correct location without adapting surrounding hardware.

Key Features

• Genuine OEM part sourced from the original equipment manufacturer
• D15X3T thread form engineered to match original assembly tolerances
• 10 millimeter diameter with 62.5 millimeter length for direct fitment
• Compatible across RYOBI and RIDGID product lines requiring this fastener
• Drop-in replacement requiring no modification to surrounding hardware

Compatibility

Designed as an OEM replacement fastener for RYOBI and RIDGID lawn mowing equipment that originally specified part number 89100121003.

Installation Notes

Disconnect the spark plug wire and ensure the equipment is fully powered down before replacing any fasteners on lawn mowing equipment. Use the correct driver bit or socket matching the screw head to avoid stripping the head or damaging surrounding components. Do not over-torque the fastener; tighten to the point of firm seating against the mating surface without deforming the material. Consult the equipment service manual for any sequence-specific torque requirements documented by the manufacturer.

Technical Specifications

• Thread Form: D15X3T
• Diameter: 10 millimeters
• Length: 62.5 millimeters
• Part Type: OEM Replacement Screw

Standard Information

• Brand: RYOBI
• Manufacturer Part Number: 89100121003