Porsche Cayman Part Numbers: A Complete Guide

Getting the right part for your Porsche Cayman starts with understanding part numbers. Whether you're replacing a worn component, upgrading to a performance part, or restoring a classic, using the correct OEM part number saves time, money, and headaches. This guide explains how Porsche part numbers work, where to find them, and how to use them to order the exact part for your Cayman.

Understanding Porsche Part Numbers

Porsche uses a systematic part numbering scheme that identifies the exact component for a specific model, year, and option. Each number contains information about the part's function, location, and revision level.

What Do Part Numbers Mean?

A typical Porsche part number looks like this: 987-347-011-03. The digits break down as:

• First three digits (987): Model series. 987 refers to the first-generation Cayman (2006-2012). Second-generation Cayman (2014-2016) uses 981, and the current generation (718 Cayman) uses 982.
• Next three digits (347): Main group. This indicates the function or system, such as engine (100 series), transmission (200 series), or body (400 series). 347 is typically for interior trim.
• Final three digits (011): Sub-group and variant. This narrows down the specific part within the group, often including left/right orientation, color, or material.
• Last two digits (03): Design change or revision. Higher numbers mean a newer version that supersedes older ones.

Not all parts follow this exact pattern, but most genuine Porsche parts use a 10- or 11-digit number. Aftermarket parts may have their own numbering, but OEM numbers ensure fitment.

Where to Find Part Numbers

You can locate the part number directly on the component itself. Common places include:

• Stickers or tags: Many parts have a white sticker with a barcode and the part number.
• Embossed plastic: On plastic covers, housings, or reservoirs, the number is often molded into the part.
• Metal stampings: Brackets, braces, and some engine parts have numbers stamped into the metal.
• Wiring and connectors: Electrical connectors may have a number on the housing.

If you can't find the number on the part, check your owner's manual or service records. Also, look for a sticker on the inside of the trunk lid or glove box—sometimes parts are listed there.

How to Look Up Porsche Cayman Part Numbers

When you need a part, start with your vehicle's VIN (Vehicle Identification Number). The VIN ensures you get the correct configuration, especially for model-year changes, options, and regional differences.

Using Online Parts Catalogs

Porsche maintains official parts catalogs through dealerships and online platforms. Here’s how to use them effectively:

1. Find your VIN: Located on the dashboard near the windshield, driver’s door jamb, or registration documents.
2. Access a parts catalog: Many Porsche dealerships have online parts systems. Enter your VIN to see the exact parts for your car.
3. Browse by category: Catalogs group parts by system (engine, suspension, body, etc.). Select the appropriate subsystem.
4. Verify part numbers: The catalog displays exploded diagrams and lists the part number for each item. Cross-reference with the number on your old part.

Some independent parts websites also offer VIN-based lookups, but be cautious—only use legitimate suppliers that source genuine Porsche parts.

VIN Decoder and Serial Number

If you don’t have the part number, a VIN decoder can help narrow down options. Porsche VINs encode the model year, engine type, transmission, and factory options. For example, a 2007 Cayman S has a different VIN structure than a 2016 Cayman GTS. Use a free VIN decoder to get your car’s build sheet, which lists original parts codes.

Parts that are specific to options (like Sport Chrono, PSE exhaust, or adaptive suspension) require extra attention. Use the build sheet to confirm your car’s equipment.

Common Part Number Formats for Cayman

Different Cayman generations use distinct number prefixes. Here’s a quick reference:

| Generation | Model Code | Prefix Example | |------------|------------|----------------| | 987.1 (2006-2008) | 987 | 987- | | 987.2 (2009-2012) | 987 | 987- (with new revisions) | | 981 (2014-2016) | 981 | 981- | | 718 (2017-present) | 982 | 982- |

Note: 987.2 parts may supersede 987.1 parts. Always check compatibility.

Common part number examples:

• Oil filter: 948-107-222-01 (fits many models including Cayman)
• Brake pads front: 987-351-939-01 (for 987.1 non-S)
• Spark plug: 999-170-213-90 (copper core, often replaced by platinum version)
• Air filter: 987-110-931-00 (for 987.1 Cayman)
• Serpentine belt: 987-102-405-00 (for climate compressor)

These numbers change over time, so always verify with the catalog or a dealer.

Tips for Ordering the Right Part

• Use the VIN for 100% accuracy: Even if you have a part number, confirm it with your VIN to avoid differences from options or production changes.
• Check for superseded numbers: Porsche often improves parts; a newer revision may replace the old one. The new number is usually compatible unless noted.
• Beware of counterfeit parts: Only buy from authorized dealers or trusted specialists. Cheap imitations can fail and damage your car.
• Keep records: Write down the part numbers for common maintenance items (filters, belts, plugs). Keep a list in your glove box.
• Ask for compatibility: If buying from a third party, ask if the part is genuine OEM or aftermarket. Aftermarket parts rarely use OEM numbers exactly.

Final Recommendation

For any Porsche Cayman repair or upgrade, start by locating the original part number on the existing component or using your VIN with an official catalog. Never rely solely on memory or generic descriptions. Matching the exact number ensures proper fit and function, protects your investment, and keeps your Cayman running as intended. If you’re unsure, contact a Porsche dealer or a specialized mechanic with the part number and VIN—they can confirm the correct piece. With accurate part numbers, you avoid returns, delays, and mismatched parts.