ACDelco Idler Pulley with Bolt for 2020-2021 Freightliner MT45 – 36299 | GM-Backed Quality

Overview

ACDelco Gold Professional Accessory Drive Belt Idler Pulleys are designed as a high quality alternative to OE parts. Built to meet fit, form and function, these pulleys bring GM backing and a track record of reliability for General Motors vehicles and many other makes and models, including special applications.

What you get

• Make: Freightliner
• Model: MT45
• Year: 2020 2021
• Engine: 6.0L V8 Gas

Why choose ACDelco Gold

• OE-style fit and dependable form and function
• GM backed and manufactured to meet stringent standards
• Suitable for a wide range of applications, including special configurations

In everyday use, a well aligned belt system supports steady operation of essential components. You may notice a smoother idle and reduced belt noise as the pulley maintains proper tension and alignment during drive cycles, highway speeds, and stop-and-go traffic. This kit is crafted to integrate with the MT45 setup and 6.0L V8 engine, helping you keep your belt routing consistent without major modification.

The ACDelco Gold idler pulley is designed for straightforward installation with a bolt included, aligning with the original mounting geometry. The result is a clean, secure fit that aligns with your maintenance routine, offering a practical upgrade path when the existing pulley shows signs of wear or misalignment during service checks.

Real-world benefits you may notice

• Potentially quieter operation due to stable belt tracking
• Potential for improved drive belt reliability in daily driving and longer trips
• Ease of installation with a direct bolt-in design

Whether you are maintaining a fleet or a personal vehicle, this part is built to support consistent performance across the MT45 configuration years 2020 and 2021, with the 6.0L V8 gasoline powerplant. While performance can vary based on overall drive system condition, GM backing adds a layer of quality assurance for those seeking a trusted aftermarket option.

Fitment and backing

Designed to align with Freightliner MT45 models from 2020 to 2021 and the 6.0L V8 engine, this pulley reflects GM manufacturing standards and support. It is intended as a reliable upgrade path for drive belt components that influence overall system integrity over time.