Description
Product Overview
The Moroso Performance Pulley (Model PULLEY,CRANK,BBC, part number 64200) is precision‑machined from high‑grade lightweight aluminum castings. Designed specifically for a range of automotive applications, this pulley features extra‑deep belt grooves that provide superior belt retention during rapid engine speed changes. With a compact diameter, it intentionally slows the rotation of the fan, water pump, and alternator, contributing to reduced parasitic drag and improved overall engine performance. Weighing only 1.18 pounds (0.499 kilograms), the pulley combines strength with minimal mass, making it an ideal replacement for OEM power pulleys.
Usage
Designed for vehicle‑specific installations, the Moroso pulley fits a variety of makes and models that require a crankshaft drive component. It is best suited for performance‑oriented drivers who demand reliable belt engagement during aggressive acceleration, track days, or daily commuting in varied traffic conditions. The lightweight construction helps lower rotating mass, which can translate to marginal gains in throttle response and fuel efficiency. Install the pulley in any standard automotive engine bay where a crankshaft pulley is required, ensuring proper alignment with the timing belt or serpentine belt system.

Why Choose Us
Moroso is a globally recognized brand known for its commitment to engineering excellence and high‑quality materials. Each pulley undergoes rigorous quality control, including dimensional verification and material testing, to guarantee consistent performance. The aluminum alloy used offers excellent corrosion resistance, ensuring longevity even in harsh environments. Our product is backed by a solid reputation reflected in a 5‑star rating from verified customers, confirming satisfaction with fit, function, and durability.
Key Features
- Precision‑machined aluminum construction for lightweight strength
- Extra‑deep belt grooves enhance belt grip during rapid RPM shifts
- Compact diameter reduces fan, water pump, and alternator speeds
- Vehicle‑specific fit ensures direct OEM replacement without modifications
- Corrosion‑resistant finish prolongs service life in demanding conditions
FAQ
Is this pulley compatible with my vehicle?
The Moroso 64200 pulley is vehicle specific. Consult the fit guide or contact our support team with your make, model, and year to confirm compatibility before purchase.
What is the benefit of a smaller pulley diameter?
A smaller diameter reduces the rotational speed of accessories such as the fan, water pump, and alternator, decreasing parasitic drag on the engine and potentially improving fuel efficiency and throttle response.
Can I install this pulley myself?
Yes, the pulley is designed for standard crankshaft installation using common tools. However, proper torque specifications and alignment are critical; we recommend following the vehicle’s service manual or seeking professional assistance if unsure.
How does the aluminum material compare to steel pulleys?
Aluminum offers a significant weight reduction while maintaining sufficient strength for normal driving conditions. It also provides better corrosion resistance, though it may not be as durable as forged steel in extreme high‑torque racing applications.
What warranty does Moroso provide?
Moroso offers a limited warranty covering manufacturing defects for a period of one year from the date of purchase. This warranty does not cover damage caused by improper installation or misuse.








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