OEM Serpentine Belt – Porsche 997 / 991.1 GT3 Cup

Genuine Porsche Motorsport Serpentine Belt – 997 / 991.1 GT3 Cup

Genuine Porsche Motorsport OEM serpentine drive belt for the Porsche 997 GT3 Cup and 991.1 GT3 Cup race cars.

This ribbed V-belt is part of the engine accessory-drive system and is intended as a direct replacement for the original Porsche Motorsport belt.

Porsche Motorsport Part Numbers

• Current Porsche part number: 997.102.151.93
• Previous Porsche part number: 997.102.151.91
• Manufacturer: Porsche Motorsport
• Product type: Ribbed V-belt / serpentine belt

Important Part Number Update

Porsche Motorsport no longer supplies the original 997.102.151.91 belt. Although the Porsche ordering system may still accept an order using that number, Porsche fulfills it with the newer 997.102.151.93 belt.

Demon Speed supplies the current 997.102.151.93 version.

Customers replacing a belt identified as 997.102.151.91 can use the newer Porsche Motorsport replacement, 997.102.151.93.

Vehicle Applications

• Porsche 997 GT3 Cup
• Porsche 991.1 GT3 Cup

This listing is for the applicable Porsche Motorsport racing engines and should not be confused with belts used on standard street-car engines.

Product Specifications

• Porsche part number: 997.102.151.93
• Replaces: 997.102.151.91
• Construction: Ribbed accessory-drive belt
• Manufacturer: Porsche OEM
• Quantity: One belt
• Demon Speed SKU: E-997SB-OEM

Maintenance and Replacement

The serpentine belt should be inspected regularly during race-car maintenance. Check for cracking, fraying, glazing, damaged ribs, or other signs of wear.

A failed accessory-drive belt can interrupt a race session or weekend. For professional race teams and track-day operators, keeping a spare OEM belt in the trailer is a practical precaution.

Replace the belt according to the applicable Porsche Motorsport maintenance recommendations.

Why Purchase from Demon Speed?

Demon Speed Motorsports specializes in Porsche racing components and supplies genuine Porsche Motorsport replacement parts for GT3 Cup racing applications.

This listing provides the current Porsche replacement belt while retaining the previous part number for easy identification and cross-referencing.