What is the main purpose of a crankshaft damper?

A crankshaft damper, or harmonic balancer, is designed to absorb torsional vibrations from the crankshaft. This helps protect the engine's rotating assembly and leads to smoother engine operation, especially under demanding conditions.

What does the '15 percent OD' mean for this damper?

The '15 percent OD' indicates a 15 percent overdrive. This means the accessory drive pulleys connected to this damper will spin 15% faster than the crankshaft itself, which can help ensure accessories like the alternator and water pump keep up at higher engine speeds.

What is the benefit of an aluminum construction for this damper?

Using aluminum for the damper shell helps reduce overall weight compared to a steel equivalent. This can contribute to a slightly quicker engine response, as there's less mass for the crankshaft to rotate.

Specifications

Brand: ATI
Part #: ATI918053S
UPC: 800157078316

ATI Shell Assy - 7.795 - Alum - 8 Grv - Ford 5.0 2011 Mustang - 15 Percent OD

Name: ATI Shell Assy - 7.795 - Alum - 8 Grv - Ford 5.0 2011 Mustang - 15 Percent OD
Brand: ATI
SKU: ati-ati-shell-assy-7-795-alum-8-grv-ford-5-0-2011-mustang-15-percent-od-t14-361444
Price: 478.66 USD
Availability: BackOrder

$478.66

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ATI Shell Assy - 7.795" 8 Rib Ford 5.0 2011 Mustang - 15% OD. Improves accessory drive performance for your 2011 Mustang 5.0.

Key Features

Fits 2011 Ford Mustang 5.0L.
7.795 inch diameter aluminum shell.
Features 8-rib pulley groove for accessory drive.
15 percent overdrive design for faster accessory spin.
Reduces crankshaft torsional vibrations for smoother operation.
Well-built aluminum construction.

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About this part

Product Details

If you're looking to get the most out of your 2011 Ford Mustang's 5.0L engine, especially when running accessories at higher RPMs, this ATI Shell Assy is a solid choice. It's a crankshaft damper, also known as a harmonic balancer, designed to reduce torsional vibrations from the crankshaft. This helps protect your engine's rotating assembly and ensures smoother operation, particularly when you've modified your engine or are pushing it hard.

This particular damper is built from aluminum and features an 8-rib pulley groove, sized at 7.795 inches in diameter. It's also designed with a 15 percent overdrive, which means your accessory drives, like the alternator and power steering pump, will spin faster than the crankshaft. This can be beneficial for maintaining proper function of accessories at higher engine speeds. ATI is known for making well-built components, and this damper is no exception, offering a strong option for performance-oriented Mustangs.