Loosoo A/C Serpentine Drive Belt Tensioner Kit 90K-38159 — Replace ACK040378HD | Fits Cadillac Escalade, Avalanche, Express (2002-2008)

Overview

Meet the Loosoo A/C Serpentine Drive Belt Tensioner Kit, a premium replacement designed to restore proper belt tension on GM trucks and SUVs. Built around the 90K-38159 reference, this kit aligns with original routing to support smooth operation of your vehicle’s AC and accessory belt system. It’s crafted to meet OEM-like standards while delivering reliable performance across multiple models from 1999 to 2008.

Fitment spans several popular GM models, including Cadillac Escalade (2002–2008), Chevrolet Avalanche (2002–2008), Express (2003–2008), Silverado (1999–2008), Suburban (2000–2008), Tahoe (2000–2008), Savana (2003–2008), Sierra (1999–2008), Yukon (2000–2008), and H2 (2003–2008). Always verify fitment with your vehicle’s VIN or parts diagram before purchase to ensure precise compatibility.

Key benefits

• OEM-standard quality aimed at a near-original driving feel and dependable performance.
• Broad compatibility with multiple GM models helps simplify replacement planning.
• Designed to help maintain proper belt tension, supporting smooth operation of the AC compressor and other accessories.
• Engineered to potentially reduce incidental belt noise when installed correctly.
• Quick, straightforward install with common hand tools, minimizing downtime.

What’s included and fitment notes

• A/C belt tensioner kit designed to replace the referenced parts and restore routing accuracy.
• Notable part numbers associated with the kit: 90K-38159, ACK040378HD, 19311139.
• Notes: Please kindly check the fitment before purchase to ensure compatibility with your vehicle.
• Compatibility is broad but model-year ranges vary by market and trim; refer to your vehicle’s documentation to confirm.

Installation at a glance

Real-world use often points to a straightforward DIY swap. The kit is designed for a roughly one-hour installation with basic tools, such as a 5mm socket and a 15mm end wrench. For best results, follow standard safety precautions and consult the vehicle’s service manual if you’re unsure about step order or torque values.

If you have questions or run into challenges, our support team is ready to help. While results may vary by vehicle and condition, the kit is positioned as a solid upgrade to refresh the belt drive system and maintain functioning accessories.