TYC 18-5987-00 Side Marker Light Assembly - Rear Right

Rear Right Side Marker Light for Lexus

This TYC side marker light assembly restores the rear right exterior lighting position with a complete, direct-fit replacement design. Built for the Lexus IS300 and RX300 applications listed below, TYC 18-5987-00 includes the lamp components needed for the rear side marker location and uses a red lens with halogen bulb configuration.

TYC Regular focuses on OE-style replacement lighting for everyday repair work. Part number 18-5987-00 is made for straightforward body-side replacement on the rear right corner, with a bolt-on attachment method and plastic lens and housing construction.

• Complete side marker light assembly for the rear right position
• Red lens with halogen bulb included
• Plastic lens and plastic housing construction
• Bolt-on attachment method
• Direct replacement for Lexus IS300 and Lexus RX300 applications
• Cross-reference: Lexus 81750-48010; Partslink LX2861101

Vehicle Fitment and Application

Compatible with rear right applications on the following vehicles:

• Fits 2001-2005 Lexus IS300, rear right. Complete Side Marker Light Assembly, includes components for both sides as well as a spare for the other side.; TYC Regular
• Fits 1999-2003 Lexus RX300, rear right. Complete Side Marker Light Assembly, includes components for both sides as well as a spare for the other side.; TYC Regular

Use TYC 18-5987-00 when replacing a damaged, faded, or non-functioning rear side marker lamp on a Lexus IS300 or Lexus RX300. The red lens and halogen bulb setup supports the original rear marker light function while maintaining the correct exterior lighting position.

Common Replacement Reasons

• Cracked or broken rear side marker lens
• Water intrusion or moisture inside the lamp
• Dim, burned-out, or intermittent rear marker lighting
• Faded plastic housing or lens discoloration
• Body damage affecting the rear right marker lamp area

Installation Notes and Quality

This assembly uses a bolt-on mounting style and is intended for the rear right side marker location. Verify the vehicle’s existing lamp shape, connector style, and position before installation. The part number 18-5987-00 is listed as the rear right unit, with the opposite side referenced separately as 18-5988-00.

TYC Regular replacement lighting is built to match the listed application details for exterior repair use. Confirm fitment against the vehicle year, model, and rear right position before ordering.