Porsche 930/911 Turbo Rear Spoiler (blue-grey) 930.512.023.00

In 2026, the part number 930.512.023.00 refers to one of the most iconic pieces of automotive design: the “Whale Tail” rear spoiler (also known as the “Turbo Tail”) for the Porsche 930 / 911 Turbo.

This specific part number is historically associated with the early 930 Turbo (3.0L) and the Carrera 3.0, featuring the secondary “grill-within-a-grill” design to provide air to the early non-intercooled or small-intercooler engines.

1. Technical Identification

Part Number: 930.512.023.00
Design: This is the “Early Turbo” style. It is flatter and wider than the later “Tea Tray” spoiler found on the 3.3L Turbos.
Blue-Grey Finish: In the Porsche world, “Blue-Grey” often refers to Minerva Blue, Petrol Blue, or the rarer Schieferblau (Slate Blue Metallic). If the part is original paint, it is likely from a late 70s or early 80s production run.
Construction: A fiberglass (GFRP) base with a large, heavy-duty vulcanized rubber lip (cowl).

3. The “Rubber Lip” Challenge

The rubber trim on the 930.512.023.00 is notorious for drying out and warping. In 2026, a “Blue-Grey” unit with a perfectly supple, uncracked rubber lip is extremely rare.

Tip: If the rubber is greyish/oxidized, use a dedicated rubber restorer (like Gummi Pflege) rather than a silicone-based “tire shine,” which can actually degrade the vulcanized material over time.

4. Fitment & Installation Notes

Decklid Compatibility: This spoiler requires the specific Turbo-style decklid with the large rectangular cutout. It will not bolt onto a standard “flat” Carrera decklid without modification or a donor lid.
Weight: This spoiler is surprisingly heavy. If you are installing it on a standard 911, you must upgrade to the heavy-duty Turbo decklid struts (Part: 911-512-331-01). Standard struts will fail under the weight, causing the lid to slam shut.
The “Carrera 3.0” Connection: If your part number has a specific suffix, it may be the version with the smaller secondary vent, which is highly sought after by Carrera 3.0 restorers.

5. Where to Source in 2026

Aase Sales / Sierra Madre: Best for genuine hardware and mounting kits.
TEILE.COM: Often has original painted “take-offs” from European cars.
The Samba / Pelican Forums: The best place to find an original blue-grey unit from a private collector to match your existing patina.