Part Number: RP066008/26
PCM RP066008/26 Alternator Belt
Keep your engine running smoothly with the PCM RP066008/26 Alternator Belt. Built to factory specifications, this serpentine belt provides the proper fit and grip needed to drive the alternator and key engine accessories with consistent, reliable performance.
As belts wear over time, they can slip, squeal, or lose tension—leading to weak battery charging and uneven system operation. Replacing it with the correct OEM belt helps restore steady voltage and keeps your engine’s accessory drive working as intended. The RP066008/26 is designed for marine use, with materials that hold up to heat, humidity, and constant vibration inside the engine compartment.
This belt is engineered as a direct replacement, ensuring proper alignment and tension on compatible PCM serpentine systems for straightforward installation and long-term durability.
Common Engine & Boat Fitments
The RP066008/26 alternator belt is used on select PCM marine engines with serpentine drive systems, commonly found on GM-based 5.7L and 6.0L platforms.
Typical applications include:
- Correct Craft / Nautique Ski Nautique, Super Air Nautique 210, and Sport Nautique
- Malibu Response, Malibu Sunsetter, and Malibu Wakesetter (PCM-powered models)
- Supra Launch series and Supra Sunsport with PCM engines
- Moomba Outback, Moomba Mobius, and Outback LS (PCM-equipped)
- MasterCraft ProStar 190 and ProStar 205 with PCM power
These boats rely on a single serpentine belt to drive the alternator, water pump, and other accessories, making proper belt condition essential for consistent performance.
Fitment can vary depending on engine configuration and model year, so confirming compatibility with part number RP066008/26 is recommended before ordering.
Key Features
- Genuine PCM OEM serpentine belt
- Designed for reliable alternator and accessory drive operation
- Helps maintain consistent charging and system performance
- Durable construction for marine environments
- Direct-fit replacement for easy installation
If your belt is worn, cracked, or slipping under load, replacing it is one of the easiest ways to prevent charging issues and keep your boat running smoothly. The PCM RP066008/26 alternator belt delivers the fit and dependability your engine was designed for.