







GRX120 Mark X Flashing Turn Signal Fiber LED Tail Lamp V1 – Red Clear
Fiber LED light guides and a conventional flashing indicator — a clean, fuss-free rear-end upgrade for the 120-series Mark X.
Brand: 78WORKS
Product Name: Mark X 120-Series Fiber LED Tail Lamp V1
Body: Red Clear
Set Contents: Left & right pair
Chassis Codes: GRX120 / GRX121 / GRX125
Years: 2004 – 2009, early & late, all grades
Grades: 250G and all variants (Limited / Prime Selection / F, L and S Packages / Four models) / 300G / 300G Premium / 300G Premium S Package
Note: Also fits cold-climate-specification cars with a rear fog. Indicator is conventional flashing on this version.
Description:
Not every car wants a sweeping indicator. This V1 set keeps the factory flashing behaviour and puts the effort into the light itself: fiber guides give a continuous, even glow that makes the OEM bulb clusters look decidedly of their era. All the practical details are handled, including a built-in bulb-failure warning resistor so nothing lights up on the dash after fitting.
Features:
• Fiber LED Illumination: Continuous light guides instead of visible bulb hotspots.
• Warning-Light Ready: Built-in bulb-failure resistor plus supplied hyperflash resistors.
• Cold-Climate Compatible: Fits rear-fog-equipped cars without modification.
• Coupler-On Connection: Plugs straight into the factory harness.
• 90-Day LED Warranty: Covered against LED failure, with a built-in reflector.
For Mark X owners who want a modern rear signature without the theatrics, across every 120-series grade.

