A-Premium Serpentine Belt Drive Kit for Buick Encore & Chevy Sonic/Trax — 54.45" Belt with Tensioner & Bolt, Direct Fit

The A-Premium Engine Serpentine Belt Drive Kit with Tensioner & Bolt supplies a complete replacement belt and tensioner engineered to restore accessory drive performance on compatible Buick Encore and Chevrolet models.

When an aging serpentine belt or a failing tensioner starts to slip, squeal, or threaten accessory systems, replacing the entire drive kit prevents repeat issues and reduces installation time. This A-Premium kit includes a 54.45-inch belt, a matching belt tensioner, and the necessary bolt so you swap the worn components in one service. It’s designed for direct fit on a range of Buick Encore (2013–2018 variants) and Chevrolet Sonic and Trax models (2013–2018 and Trax 2021) with engines listed as LUV or MFI — always verify fitment by entering your vehicle data before ordering.

How does this kit improve engine accessory drive function?

Replacing both the belt and tensioner together restores proper belt tension and alignment, which keeps alternators, power steering pumps, and air conditioning compressors running smoothly. The kit reduces belt flutter and noise, lowering the risk of accessory failure that can leave you stranded.

• Includes matched belt and tensioner engineered to work as a set
• Restores correct belt tension and routing
• Cuts transmission resistance and operational noise
• Helps stabilize accessory-driven systems for reliable starts

What vehicles and engine codes does the A-Premium kit fit?

This kit is made to match specific Buick and Chevrolet applications. It covers multiple trims and model years of the Buick Encore and Chevrolet Sonic and Trax where the manufacturer's service guides call for a 54.45-inch belt and the corresponding tensioner.

• Buick Encore: 2013–2018 (various trims including Base, Convenience, CX, CXL, Essence, Leather, Preferred, Premium)
• Chevrolet Sonic: 2013–2018
• Chevrolet Trax: 2013–2018 and 2021
• Engine codes noted: LUV, MFI — confirm your VIN or vehicle selector before purchase

What’s included in the package and what should I expect during installation?

The kit ships ready for a straightforward replacement: one serpentine belt, one belt tensioner and one installation bolt. Most installers will remove the old belt and tensioner, compare pulley alignment, then fit the new tensioner and route the new belt per the factory diagram.

• Kit contents: 1x serpentine belt (54.45" effective length), 1x belt tensioner, 1x bolt
• Pre-check pulleys for wear and replace if grooved or damaged
• Follow manufacturer routing or service manual during installation
• Torque bolt to spec and verify tensioner operation before road testing

What warranty and quality assurances does A-Premium offer?

A-Premium backs this serpentine belt drive kit with a one-year unlimited-mileage guarantee, reflecting confidence in materials and assembly. The warranty gives you the option to replace or repair covered defects during the first year of ownership.

• One-year unlimited-mileage warranty on the kit
• Manufactured components sized to match listed vehicle applications
• Quality control checks during production for fit and finish

Who is this for: This A-Premium kit is intended for vehicle owners, DIY mechanics, and independent repair shops servicing Buick Encore or Chevrolet Sonic/Trax models that require a 54.45-inch serpentine belt and compatible tensioner. Choose this kit if you want a matched replacement set that includes the belt, tensioner, and bolt for a single, consolidated repair — and be sure to confirm fitment with your vehicle details before purchase.