what brand are the bearings?

Just examined the still unused pulley stating Made in USA on box, and yes it is a Chinese (NSK) bearing assembly. In fact on close examination, the Dayco plastic pulley looks a bit rough. Maybe stick with Mopar on this part which should be a lifetime idler pulley.

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Dayco 89144 Idler Pulley, Black

Product ID: 290958636

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⚙️Precision polymer build

🛠️First-to-market innovation

🇺🇸Proudly USA made

Description

⚙️ Elevate your engine’s performance with Dayco’s cutting-edge tension pulley!

MADE IN THE USA - Crafted domestically for superior quality control and performance you can trust.
LIGHTWEIGHT DESIGN - At just 90.7g, it reduces strain on your engine system for smoother operation.
SMOOTH EXTERIOR FINISH - Minimizes friction and wear, extending the life of your belt system.
ENGINEERED FOR RELIABILITY - Polymer construction ensures long-lasting durability under high tension.
INDUSTRY LEADING INNOVATION - Be the first to upgrade with the pioneering Dayco 89144 tension pulley.

The Dayco 89144 Idler Pulley is a precision-engineered polymer tension pulley, designed and manufactured in the USA. Weighing only 90.7 grams with a smooth exterior finish, it offers durable, lightweight, and reliable performance for automotive and outdoor power equipment applications.

Specifications

Manufacturer	DAYCO
Brand	Dayco
Model	Tension Pulley, Industry Number 89144
Product Dimensions	9.4 x 9.4 x 3.3 cm; 90.72 g
Item model number	89144
Exterior	Smooth
Manufacturer Part Number	89144
OEM Part Number	89144
Position	Center
Item Weight	90.7 g

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