--- product_id: 5887411 title: "Idler Pulley With Bolt for 2020-2021 Freightliner MT45 - 36299" brand: "acdelco" price: "279.51 DT" currency: TND in_stock: true category: "Ac Delco" url: https://www.desertcart.tn/products/5887411-idler-pulley-with-bolt-for-2020-2021-freightliner-mt45-36299 store_origin: TN region: Tunisia --- # 5.2-inch diameter fit Precision steel build Limited lifetime warranty Idler Pulley With Bolt for 2020-2021 Freightliner MT45 - 36299 **Brand:** acdelco **Price:** 279.51 DT **Availability:** ✅ In Stock ## Summary > ⚙️ Drive your Freightliner with confidence — precision engineered, built to last! ## Quick Answers - **What is this?** Idler Pulley With Bolt for 2020-2021 Freightliner MT45 - 36299 by acdelco - **How much does it cost?** 279.51 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/5887411-idler-pulley-with-bolt-for-2020-2021-freightliner-mt45-36299) ## Best For - acdelco enthusiasts ## Why This Product - Trusted acdelco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Efficient:** 5.2-inch diameter optimizes belt tension and drive efficiency for smoother engine operation. - • **Lifetime Confidence:** Limited lifetime warranty offers peace of mind and reliability for professional-grade maintenance. - • **Perfect Fit Guarantee:** Specifically designed for 2020-2021 Freightliner MT45 6.0L V8 Gas engines for seamless installation. - • **Trusted OEM Alternative:** ACDelco Gold quality meets or exceeds original equipment standards, backed by General Motors. - • **Engineered for Excellence:** Steel construction ensures durability and long-lasting performance under heavy-duty conditions. ## Overview The ACDelco Idler Pulley with Bolt is a premium steel accessory designed for 2020-2021 Freightliner MT45 models with 6.0L V8 Gas engines. Engineered to meet OEM standards and backed by General Motors, this 5.2-inch diameter pulley ensures optimal belt tension and durability. With a limited lifetime warranty and a trusted brand reputation, it’s the smart choice for professionals seeking reliable, long-lasting performance. ## Description ACDelco Gold (Professional) Accessory Drive Belt Idler Pulleys are a high quality alternative to Original Equipment (OE) parts. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional. ## Features - Make: Freightliner - Model: MT45 - Year: 2020-2021 - Engine: 6.0L V8 Gas ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002E54VSG | | Best Sellers Rank | #46,445 in Automotive ( See Top 100 in Automotive ) #6 in Automotive Replacement Idler Pulleys | | Brand Name | ACDelco | | Color | Black | | Customer Reviews | 4.8 4.8 out of 5 stars (1,192) | | Global Trade Identification Number | 00707773573402 | | Item Dimensions L x W | 5.2"L x 5.2"W | | Item Length | 5.2 Inches | | Item Weight | 1 Pounds | | Manufacturer | ACDelco | | Manufacturer Warranty Description | Limited Lifetime Warranty (Parts Only). Please see ACDelco.com for more details. | | Material Type | steel | | Outside Diameter | 5.2 Inches | | UPC | 707773573402 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** ACDelco - **Color:** Black - **Item Length:** 5.2 Inches - **Item Weight:** 1 Pounds - **Manufacturer:** ACDelco - **Material:** steel - **Outside Diameter:** 5.2 Inches - **Product Dimensions:** 5.2"L x 5.2"W - **UPC:** 707773573402 - **Unit Count:** 1.0 Count ## Images ![Idler Pulley With Bolt for 2020-2021 Freightliner MT45 - 36299 - Image 1](https://m.media-amazon.com/images/I/61+mLIE0cTL.jpg) ## Questions & Answers **Q: Why is it important to have belts and hoses replaced periodically?** A: If a drivebelt or radiator coolant hose fails while driving, you won’t be able to continue driving — and additional engine damage may occur if the engine overheats. **Q: How long do belts and hoses typically last?** A: Lifespans of belts and hoses vary based on factors including the climate and driving habits, but generally a drivebelt (also known as a serpentine belt) lasts about 50,000-100,00 miles, while radiator coolant hoses can last about five years. **Q: What are signs the drivebelt needs replacement?** A: A worn drivebelt can slip while the engine is running, causing high-pitched squealing or chirping sounds. Additionally, it can show cracks and fraying around the edges or a glazed (shiny) appearance. They’re signs it’s time to change the belt. **Q: What about the tensioner pulley?** A: The tensioner pulley complements the drivebelt and is also subject to wear and possible replacement. Signs it may need replacement include squealing sounds or, if the bearing is failing, a grinding sound while the engine is running. **Q: What are signs of a failing radiator hose?** A: A worn or failing radiator coolant hose often develops cracks that lead to leaks. Evidence for that includes drips or puddles beneath the radiator or engine, along with the odor of coolant. The engine may also overheat. ## Frequently Bought Together - ACDelco Idler Pulley With Bolt for 2020-2021 Freightliner MT45 - 36299 - ACDelco Gold 38158 Drive Belt Tensioner Assembly with Pulley, Aluminum w/ Black Pulley - ACDelco GM Original Equipment 12626222 V-Ribbed Serpentine Belt --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/5887411-idler-pulley-with-bolt-for-2020-2021-freightliner-mt45-36299](https://www.desertcart.tn/products/5887411-idler-pulley-with-bolt-for-2020-2021-freightliner-mt45-36299) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-16*