Serpentine Belt Tensioner Pulley for 2006-2009 Buick LaCrosse 2.4L, Replaces 12585551

Description

Restore reliable accessory drive operation with this replacement belt tensioner pulley engineered for 2006-2009 Buick LaCrosse 2.4L applications. Designed to maintain optimal serpentine belt tension and prevent slippage for alternator, power steering, and AC compressor performance.

Key Features

• Direct fit belt tensioner pulley for 2006-2009 Buick LaCrosse 2.4L engine applications
• Cross-reference number 12585551 provided for identification and verification
• Maintains proper serpentine belt tension to prevent accessory drive noise and slippage
• Precision-machined bearing assembly for smooth rotation and extended service life
• Professional installation recommended to ensure correct belt routing and tension

Technical Specifications

Package Includes

• 1 x Belt Tensioner Pulley

FAQ

Q: Will this fit my 2007 Buick LaCrosse with 2.4L engine?

A: This pulley is designed for 2006-2009 Buick LaCrosse models equipped with 2.4L engines. Please verify your engine size and model year before ordering to ensure compatibility.

Q: Does this include the complete tensioner assembly or just the pulley?

A: This listing is for the belt tensioner pulley only. If your tensioner arm or spring mechanism is damaged, you may need a complete tensioner assembly instead.

Q: Is this an OEM genuine part or aftermarket?

A: This is an aftermarket replacement part. The reference number 12585551 is provided for cross-reference purposes only.

Q: What are the symptoms of a bad belt tensioner pulley?

A: Common signs include squealing noises from the engine bay, visible wobble in the pulley, uneven belt wear, or accessory drive malfunctions such as alternator charging issues.