What is the purpose of a crank hub and inner shell?

The crank hub and inner shell are components of the harmonic balancer system. They work together to absorb and dampen torsional vibrations from the crankshaft, helping to protect the engine from damage and ensure smoother operation.

What does '15 Percent UD' mean for this part?

UD stands for Underdrive. A 15 percent underdrive means that the accessories driven by this pulley system will spin at a slightly slower speed relative to the crankshaft's rotation. This can affect accessory performance and is often chosen for specific engine build goals.

What is this part made of?

This ATI Crank Hub & Inner Shell assembly is made from steel, chosen for its strength and ability to handle the stresses of engine operation.

Specifications

Brand: ATI
Part #: ATI916245
UPC: 800157023736

ATI Crank Hub & Inner Shell - Steel - Dodge Chal 5.7 Hemi 15 Percent UD

Name: ATI Crank Hub & Inner Shell - Steel - Dodge Chal 5.7 Hemi 15 Percent UD
Brand: ATI
SKU: ati-ati-crank-hub-inner-shell-steel-dodge-chal-5-7-hemi-15-percent-ud-t14-360767
Price: 181.58 USD
Availability: BackOrder

$181.58

On Backorder

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

Key Features

Fits Dodge vehicles with the 5.7 Hemi engine.
Steel construction for durability.
Includes crank hub and inner shell.
Features a 15 percent underdrive pulley design.
Part of the ATI harmonic balancer system.

This part is designed for Dodge vehicles equipped with the 5.7 Hemi engine. Please verify compatibility with your specific vehicle model and year.

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About this part

Product Details

This is the ATI Crank Hub & Inner Shell assembly, part number 916245, designed for Dodge vehicles with the 5.7 Hemi engine. This component is crucial for the proper functioning of your engine's crankshaft, acting as a key part of the harmonic balancer system. It helps to reduce torsional vibrations that travel down the crankshaft, which can otherwise lead to premature wear and potential damage over time.

Constructed from durable steel, this assembly is built to withstand the rigors of engine operation. The '15 Percent UD' designation indicates it's part of a 15 percent underdrive pulley system, which can slightly alter the speed of accessories driven by the crankshaft, like the alternator and water pump. This specific hub and shell design is engineered to integrate seamlessly with compatible ATI harmonic balancers, ensuring a precise fit and reliable performance. Proper installation is key to managing engine vibrations effectively.