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99919229051/1
Product Information
Product Information
Alternator belt.
Width: 21 mm | Length: 720 mm
Number of ribs: 6

The DAYCO alternator belt (6PK720) is an OEM-quality multi-rib drive belt manufactured to meet or exceed original equipment specifications, it provides reliable power transmission from the crankshaft to the alternator, ensuring the battery remains charged and the vehicle's electrical systems operate efficiently. It is a direct replacement for Porsche part 99919229051.

Fits:
Porsche 944 1989-91 Cars without air conditioning
Porsche 968 1992-95 Cars without air conditioning

Diagram ref no 6

Drives the alternator to keep the battery charged and supply power to the vehicle's electrical systems. It ensures efficient power transmission while helping maintain reliable engine accessory operation.

Key Features & Benefits
• Genuine DAYCO OEM-quality drive belt
• Direct replacement for Porsche 99919229051
• High-strength multi-rib (poly-V) construction
• Excellent resistance to heat, wear, and stretching
• Quiet, smooth operation
•  Helps maintain reliable charging system performance

Why Replacing an Alternator Belt Matters
The alternator belt is constantly exposed to heat, tension, and engine vibration. As it wears, it can slip or crack, reducing charging efficiency and potentially leaving the vehicle without electrical power. Replacing the belt at the recommended service interval helps maintain reliable charging performance and prevents unexpected breakdowns.

When to Replace the Alternator Belt
•  Visible cracks, fraying, or glazing on the belt
•  Squealing noises from the engine bay
•  Battery warning light illuminated
•  Reduced charging performance
•  During major engine or accessory servicing
•  At the manufacturer's recommended replacement interval

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99919229051
99919229050
99919228250
99919228450
6PK720
99919229051

The product you are viewing cross references to these numbers
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