hello friend I wonder if the tensioner pulley is metal and if it profit a 2005 Aveo automatic thanks

Yes it is metal and it is specific for the make and model and engine of the vehicle. This one fits 5.3L V8 engines and possibly others, but I am sure it would not fit on an Aveo. You are best off to take your car to an auto mechanic.

Does this fit a 2004 Yukon Denali 6.0?

I used it on a 2005 Denali 6.0, so should be the same.

Does this fit a 97 Buick park Avenue ultra supercharger 3.8

No clue, but I doubt it. I bought it for an '06 Chevy Silverado pickup with a 325 V8 and it fits perfectly.

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⚙️ Keep your engine running like clockwork—because every detail counts!

LIGHTWEIGHT YET DURABLE - Aluminum construction balances strength with minimal added weight (454g)
TRUSTED BY PROFESSIONALS - Backed by General Motors for confidence in every drive
PLUG AND PLAY INSTALLATION - No assembly required—get your vehicle back on the road faster
OEM GRADE QUALITY ASSURANCE - Manufactured to exact GM specifications ensuring perfect fit and durability
ENGINEERED FOR PEAK PERFORMANCE - Maintains optimal serpentine belt tension for smooth, reliable operation

The ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly is a premium aftermarket replacement designed to maintain the correct tension on serpentine belts. Crafted from durable aluminum and engineered to meet GM’s exacting standards, it ensures seamless fit, form, and function across a wide range of vehicles. This ready-to-install part delivers reliable performance and longevity, making it the go-to choice for professionals and enthusiasts aiming to avoid costly downtime.

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Brand	ACDelco
Material	Aluminum
Belt Style	serpentine belt
Compatible Devices	Vehicles
Item Weight	454 g
Colour	Aluminum w/ Black Pulley
Manufacturer	ACDelco
Global Trade Identification Number	00021625584454
UPC	021625584454
Model	Drive Belt Tensioner
Product Dimensions	22.35 x 12.19 x 9.14 cm; 453.59 g
Item model number	38158
Exterior	Machined
Manufacturer Part Number	88929140
OEM Part Number	88929140
Assembly Required	No
Country of Origin	USA

ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly

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