What is a crankshaft pulley used for?

The crankshaft pulley is mounted to the front of the crankshaft and is driven by the engine's rotation. It drives the vehicle's accessory belts, which in turn power components like the alternator, power steering pump, and air conditioning compressor.

Why would I need to replace my crankshaft pulley?

You might need to replace your crankshaft pulley if it's cracked, warped, or if the belt surface is worn down. A damaged pulley can cause belts to slip, leading to poor performance of accessories or even overheating if the water pump is belt-driven.

Does this pulley come with a new bolt or washer?

This Moroso V-Belt Crankshaft Pulley is sold individually. Hardware such as the crankshaft bolt or any necessary washers are typically reused from the original installation or purchased separately.

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Trusted Since 1957

Est. 1957

Specifications

Brand: Moroso
Part #: 23523
UPC: 84663235238

Moroso V-Belt Crankshaft Pulley - 4in

Name: Moroso V-Belt Crankshaft Pulley - 4in
Brand: Moroso
SKU: moroso-moroso-v-belt-crankshaft-pulley-4in-t14-405108
Price: 85.99 USD
Availability: BackOrder

$85.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Moroso V-Belt Crankshaft Pulley - 4in. A well-built replacement for your stock pulley.

Key Features

Fits various V-belt applications.
4-inch diameter is a common size.
Well-built by Moroso for durability.
Designed as a direct replacement for your stock pulley.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

No-fit, no charge. Wrong part? Send it back, free return label.

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About this part

Product Details

If you're working on your engine and need to replace the crankshaft pulley, this Moroso V-Belt Crankshaft Pulley is a solid option. It's designed to bolt right up where your original pulley was, making the job straightforward. This pulley is 4 inches in diameter, which is a common size for many V-belt applications.

Moroso is known for making well-built engine components, and this crankshaft pulley is no exception. It's made from durable materials to handle the demands of spinning at engine speeds. Replacing a worn or damaged pulley is important for ensuring your accessory belts stay properly tensioned and your alternator, power steering pump, and other accessories run smoothly.