Dorman 991-000CD Differential Drain Plug - Front

Dorman Differential Drain Plug for Lexus Front Differentials

The Dorman 991-000CD differential drain plug is a direct-fit replacement for a missing or damaged original plug on select Lexus front differential applications. Built from steel and aluminum with a silver finish, it is designed to restore a secure seal at the drain point and support proper differential service.

• Direct replacement differential drain plug for select Lexus vehicles
• Steel and aluminum construction with silver finish
• Magnetic design helps capture metallic wear particles during service
• Hex head drive with 14 mm hex size for service access
• 24 mm thread diameter and medium thread type
• No gasket or seal included
• Heat treated: No

Detailed Product Overview

Dorman 991-000CD is engineered to match the fit and function of the original differential oil drain plug on specified vehicles and positions. It is a practical OE-style replacement for front differential service on Lexus IS300, IS350, RC300, RC350, GS350, IS250, and GS300 applications listed below. This part cross-references OE number 9034124016 for the same application.

Compatible With: Fits 2016-2024 Lexus IS300, front; Fits 2011-2024 Lexus IS350, front; Fits 2016-2024 Lexus RC300, front; Fits 2015-2024 Lexus RC350, front; Fits 2013-2020 Lexus GS350, front; Fits 2007-2011 Lexus GS350, front; Fits 2006-2015 Lexus IS250, front; Fits 2006 Lexus GS300, front. The Dorman 991-000CD is a focused solution for Lexus front differential drain plug replacement when the original plug is stripped, missing, or no longer sealing correctly.

What It Helps Address

• Missing or damaged differential drain plug
• Leaking drain point at the front differential
• Stripped or worn plug threads
• Service issues caused by a plug that no longer seals securely
• Metal debris accumulation during differential fluid service

Installation Notes and Tips

Verify thread diameter, thread type, and head drive before installation. Clean the drain opening and inspect the sealing surface before threading in the plug. Because no gasket or seal is included, reuse or replace the sealing component as required by the vehicle service procedure. Confirm front-position application on Lexus IS300, IS350, RC300, RC350, GS350, IS250, or GS300 models before service.

Quality Assurance

Dorman designs replacement hardware to match original equipment fit and function for specified applications. Part number 991-000CD is built for direct replacement use on the listed Lexus front differential applications.