ROLLS-ROYCE CULLINAN RR31 Frame Radiator Grill Grille

The Rolls-Royce Cullinan (RR31) radiator grille is not a single part but an assembly composed of the outer frame (the “Shell”), the internal vertical vanes, and the Spirit of Ecstasy mounting base.

For 2026, the market is divided between the original Series I (2019–2024) and the refreshed Series II (2025–Present), which features the first-ever illuminated “Horizon Line” grille for this model.

1. The Grille Frame (Shell)

The frame is the most expensive cosmetic component of the front end. It is available in two distinct finishes:

Polished Stainless Steel (Standard): Hand-polished to a mirror finish.
- Part Number: 51137448950 (Series I)
Black Badge (Dark Chrome): Created using a specific chrome electrolyte that is co-deposited onto the stainless steel to create a “mirror-black” effect.
- Part Number: 51135A017C9 or 51135A017D0 (Series I – Black Badge

2. Series I vs. Series II Differences

If you are looking for a replacement, ensure you have the correct “Series” as they are not interchangeable without significant body modifications.

Feature	Series I (2019–2024)	Series II (2025–Present)
Design	Traditional “Pantheon” rectangular shape.	Lower leading edge with a V-shaped bumper line.
Illumination	Non-illuminated (Standard).	Illuminated Grille (Standard on Black Badge).
Frame Style	Thick, monolithic top border.	Features a “Horizon Line” (LED strip) across the top.
Vanes	Classic vertical stainless steel.	Refined geometry for better airflow.

3. Estimated Pricing (2026)

New OEM Grille Assembly (Complete): Expect to pay between $7,500 and $11,000.
Grille Frame Only (The Shell): Approximately $4,500 – $6,000.
Used/Salvage Units: Frequently listed on specialty platforms (like Alpine Performance or Luxury Parts) for $3,500 – $5,000 for the chrome version.

4. Technical Note: The “Spirit of Ecstasy” Mechanism

The grille frame houses the complex Spirit of Ecstasy lift mechanism.

When ordering a frame, it typically does not include the mascot or the motor assembly.
If your frame was damaged in a collision, ensure the “Anti-Theft” retraction sensor is recalibrated; otherwise, the mascot may fail to deploy or retract correctly through the new frame’s aperture.