Porsche Parts Catalog PET: Your Complete Guide to Finding OEM Parts

If you own or work on a Porsche, you’ve likely heard about the Porsche PET parts catalog. PET stands for Porsche Electronic Technical Information, and it’s the official digital catalog used by dealerships, independent shops, and enthusiasts to locate genuine OEM parts. Whether you’re restoring a classic 911, maintaining a modern Cayenne, or just need a specific bolt, the PET catalog is the most reliable way to ensure you order the right part. This guide explains what the PET catalog is, how to access it, and how to use it effectively.

What Is the Porsche PET Catalog?

The Porsche PET catalog is a comprehensive electronic database that contains exploded diagrams, part numbers, and descriptions for every Porsche model from the 1950s to the present day. It’s the same tool that Porsche dealers use to look up parts. Instead of relying on aftermarket catalogs or guesswork, PET gives you the exact original part number, which helps you avoid ordering incorrect or incompatible parts.

Originally distributed on CD-ROMs, the PET catalog is now available online through Porsche’s official parts portal. There are also third-party websites and software that replicate the PET data, but the official version is the most up-to-date and accurate.

Key Features of the PET Catalog

• Exploded Diagrams: Detailed, labeled drawings of every assembly – from the engine and transmission to interior trim and body panels.
• Part Numbers: Each part is assigned a unique Porsche part number that is globally recognized.
• Model and Year Filtering: You can narrow down by chassis (e.g., 991, 964) and model year to see only parts that fit your specific car.
• Supersession Information: If a part has been updated, PET shows the new part number and which original part it replaces.
• Grouping by Function: Parts are organized by main groups (engine, suspension, electrical, etc.), then subgroups, making navigation logical.

How to Access the Porsche PET Catalog

There are several ways to access the PET catalog:

Official Porsche Parts Website

Porsche offers a free online version at parts.porsche.com. You can search by VIN or select your model and year. The interface is user-friendly, with a search bar and browsing option. However, not all models may be available online; classic cars often require a different system.

Third-Party PET Viewers

Many independent parts suppliers and forums host their own PET viewers. These are often simplified versions that allow you to browse diagrams without navigating the full official site. Websites like Design911, Pelican Parts, and others embed PET diagrams. These are convenient because they also show their pricing, but be cautious – the diagrams may not be updated as frequently.

Downloadable PET Software

Until recently, Porsche offered a downloadable version of PET for offline use. As of 2023, the official downloadable version has been discontinued in favor of the online portal. However, some enthusiasts still use older copies. These can be found on Porsche forums or through private sources. Be aware that these versions may not contain the latest supersessions.

How to Use the PET Catalog Step by Step

Let’s walk through finding a part using the official PET online tool.

Step 1: Identify Your Vehicle

If you know your VIN (Vehicle Identification Number), enter it on the parts.porsche.com homepage. This automatically selects your exact model, year, and options. Without a VIN, you can manually choose the model series and year.

Step 2: Choose a Category

The catalog is divided into main groups like “Engine,” “Transmission,” “Body,” “Electrical,” etc. Click on the relevant group. For example, click “Engine” if you need a timing chain guide.

Step 3: Select Subcategory

After selecting a main group, you’ll see subgroups. For the engine, you might see “Crankshaft and Pistons,” “Valve Train,” “Oil System,” etc. Pick the one that matches your need.

Step 4: View the Diagram

An exploded diagram will appear. Each part is numbered and corresponds to a list below the image. Hover over the part to see its description. Click on the part number to see details, including quantity needed and any notes.

Step 5: Order the Part

When you find the correct part number, you can either order directly through the Porsche website (some parts are available online) or take the number to your local Porsche dealer or online retailer. Always double-check the supersession – if a newer part number is shown, use that.

Practical Tips for Using the PET Catalog

• Always Use the VIN: Even seemingly identical models can have different parts due to production changes or options. Using the VIN ensures accuracy.
• Check for Supersession: Look for a “Replaces” field. If an older part number has been updated, the newer one is the only one available from Porsche.
• Note the Quantity: Some diagrams show multiple instances of a part (e.g., 4 bolts). The parts list will indicate how many you need per car.
• Cross-Reference with Aftermarket: If you cannot find a part or it’s discontinued, the PET number helps you identify equivalent aftermarket parts. But for critical components, stick with OEM.
• Save Pages as PDF: You can print or save the diagram for reference when removing or installing parts.

Common Challenges and How to Overcome Them

Challenge: PET Doesn’t Show Current Availability

PET tells you the part number but not whether it’s in stock or discontinued. For availability, you must check with a dealer or online parts retailer. Many sites allow you to input the part number to see stock.

Challenge: Classic Cars Have Limited Online Coverage

Pre-1970 models may not appear on the modern PET site. For these, you’ll need the older software version or a printed parts catalog. Joining Porsche enthusiast forums like Rennlist or Pelican Parts can lead you to archived versions.

Challenge: Understanding the Diagram

Some diagrams are complex with many components. Use the zoom function and cross-reference with a repair manual if needed. The part number list is clickable, so you can highlight a number to see its location on the diagram.

Where Else to Find PET-Like Information

While PET is the gold standard, several other resources complement it:

• Porsche Classic Parts Catalog: For vintage models, Porsche Classic publishes printed and online catalogs that are more accessible.
• Workshop Manuals: Porsche Workshop Manuals (WSM) provide detailed repair procedures and often reference part numbers.
• Online Parts Retailers: Many sellers like Pelican Parts, FCP Euro, and ECS Tuning display PET diagrams on their product pages, making it easy to compare parts and prices.
• Porsche Forums: Communities share diagrams, part numbers, and experiences with different suppliers.

Final Recommendation

The Porsche PET parts catalog is an indispensable tool for any serious Porsche owner or mechanic. Start with the official online version at parts.porsche.com. Use your VIN to get accurate results. For classic cars, seek out the older downloadable PET version or a printed Classic catalog. Always cross-reference the part number with a dealer before ordering, especially for safety-critical components like brakes and suspension. By mastering the PET catalog, you’ll save time, money, and frustration, ensuring your Porsche gets exactly the right parts every time.