---
product_id: 12749603
title: "Dorman 419-109 Accessory Drive Belt Tensioner Assembly Compatible with Select Models"
brand: "dorman"
price: "$92.21"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/12749603-dorman-419-109-accessory-drive-belt-tensioner-assembly-compatible-select
store_origin: US
region: United States of America
---

# Expert backed Direct fit Durable design Dorman 419-109 Accessory Drive Belt Tensioner Assembly Compatible with Select Models

**Brand:** dorman
**Price:** $92.21
**Availability:** ✅ In Stock

## Summary

> 🔩 Elevate Your Ride with Precision Engineering!

## Quick Answers

- **What is this?** Dorman 419-109 Accessory Drive Belt Tensioner Assembly Compatible with Select Models by dorman
- **How much does it cost?** $92.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/12749603-dorman-419-109-accessory-drive-belt-tensioner-assembly-compatible-select)

## Best For

- dorman enthusiasts

## Why This Product

- Trusted dorman brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Manufactured with high-quality materials for long-lasting reliability.
- • **Enhanced Performance:** Optimizes belt tension to prevent slipping and ensure smooth operation.
- • **Perfect Fit Guaranteed:** Engineered to match original equipment specifications for seamless installation.
- • **Expertise You Can Trust:** Backed by over a century of automotive experience and a dedicated team.
- • **Easy Compatibility Check:** Simply input your vehicle's make, model, and trim for a perfect match.

## Overview

The Dorman 419-109 Accessory Drive Belt Tensioner Assembly is a direct replacement part designed to ensure optimal belt tension for select vehicle models. With a focus on durability and reliability, this assembly is backed by a century of automotive expertise, making it a trustworthy choice for maintaining your vehicle's performance.

## Description

Dorman 419-109 Accessory Drive Belt Tensioner Assembly Compatible with Select Models

## Features

- Direct replacement - this accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles
- Ideal solution - engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue
- Durable construction - designed and manufactured to strict specifications for reliable performance
- Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
- Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Dorman Products |
| Brand | Dorman |
| Model | Dorman 419-109: Automatic Belt Tensioner (Tensioner only) |
| Item Weight | 12.6 ounces |
| Product Dimensions | 4.6 x 3.2 x 2.7 inches |
| Country of Origin | China |
| Item model number | 419-109 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | 419-109 |
| OEM Part Number | 12580196; 38159; 419109; 45816; 49276; 5816; 89258; GM1413171; SK89258; 12580196; 8-12565-372-0; 8-12580-196-0 |

## Images

![Dorman 419-109 Accessory Drive Belt Tensioner Assembly Compatible with Select Models - Image 1](https://m.media-amazon.com/images/I/91FnXVqHIjL.jpg)

## Questions & Answers

**Q: will this fit a mercury marine outboard engine ?**
A: Sorry Dorman doesn't list anything for marine applications.

**Q: does this have the smooth wheel. Is this the a/c tensioner pulley. Thats the one I need**
A: Yes it does, It,s coming with the smooth wheel, and fit a/c system.

**Q: Has anyone used this on a 4.2 V6 Chevrolet Trailblazer? This saystem says it doesnt fit but according to Oreilly Auto PArts system it does.**
A: I always verify the part with auto zones or rock auto website just to be sure. So if the auto part distributers web site says it fine I would go with it. I have learned the hard way that amazon garage function is less than accurate.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-27*