---
product_id: 130388562
title: "ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly"
brand: "acdelco"
price: "A$135"
currency: AUD
in_stock: true
reviews_count: 5
category: "Ac Delco"
url: https://www.desertcart.com.au/products/130388562-acdelco-38158-professional-automatic-belt-tensioner-and-pulley-assembly
store_origin: AU
region: Australia
---

# Full line coverage for all vehicle types Patented vibration damping system Torsional round spring design ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly

**Brand:** acdelco
**Price:** A$135
**Availability:** ✅ In Stock

## Summary

> ⚙️ Keep your engine running smooth — don’t let belt slack slow you down!

## Quick Answers

- **What is this?** ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly by acdelco
- **How much does it cost?** A$135 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/130388562-acdelco-38158-professional-automatic-belt-tensioner-and-pulley-assembly)

## 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

- • **Universal Fit:** Compatible with domestic, import, and heavy-duty vehicles
- • **Trusted OEM Quality:** Backed by General Motors for guaranteed reliability
- • **Durability Engineered:** High-quality materials resist contamination and wear
- • **Vibration-Damping Tech:** Patented system extends belt and accessory lifespan
- • **Precision Tension Control:** Maintains optimal belt tension for peak engine performance

## Overview

The ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly delivers precise belt tension and alignment using a patented vibration damping system and torsional spring design. Engineered from premium materials, it ensures long-lasting durability and fits a wide range of domestic, import, and heavy-duty vehicles. Backed by General Motors, this OE-quality part guarantees reliable performance and extended accessory life.

## Description

ACDelco Gold (Professional) 90 Degree Molded Accessory Drive Belt Tensioner Assemblies are the high quality alternative to Original Equipment (OE) parts. These 90 degree molded belt tensioner assemblies are very important in optimal operation of the accessory belt drive system. The tensioner maintains the correct amount of tension on the belt throughout operation. 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.

Review: Worked great and arrived fast
Review: منتج ممتاز

## Features

- Ensures proper belt tension, alignment, and damping for superior performance
- Patented vibration damping system increases tensioner, belt, and accessory component life for long lasting use
- Torsional round spring design provides consistent tension and does not allow contamination for enhanced durability
- Provides full line coverage for domestic, import, and heavy duty applications.Made from high-quality materials for ultimate durability.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000C9PFJK |
| Brand | ACDelco |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,370) |
| Date First Available | 10 Oct. 2007 |
| Exterior | Machined |
| Item Weight | 454 g |
| Item model number | 38158 |
| Manufacturer | ACDelco |
| Manufacturer part number | 88929140 |
| Model | Drive Belt Tensioner |
| OEM Part Number | 88929140 |
| Product Dimensions | 22.35 x 12.19 x 9.14 cm; 453.59 g |

## Product Details

- **Belt style:** serpentine belt
- **Brand:** ACDelco
- **Compatible devices:** Vehicles
- **Item weight:** 1 Pounds
- **Material:** Aluminum

## Images

![ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly - Image 1](https://m.media-amazon.com/images/I/41vmFFKAm-L.jpg)
![ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly - Image 2](https://m.media-amazon.com/images/I/61UN4o1d3IL.jpg)
![ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly - Image 3](https://m.media-amazon.com/images/I/61mBFHgMALL.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***E on 24 April 2024*

Worked great and arrived fast

### ⭐⭐⭐⭐⭐ Review
*by A***M on 9 February 2023*

منتج ممتاز

### ⭐ Review
*by S***E on 30 July 2025*

It didn't line up n I ran out of time to return it

## Frequently Bought Together

- ACDelco Gold 38158 Drive Belt Tensioner Assembly with Pulley, Aluminum w/ Black Pulley
- ACDelco Gold K060930HD Heavy Duty V-Ribbed Serpentine Belt
- ACDelco Gold 252-845 (19195104) Engine Water Pump

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**Shop now:** [https://www.desertcart.com.au/products/130388562-acdelco-38158-professional-automatic-belt-tensioner-and-pulley-assembly](https://www.desertcart.com.au/products/130388562-acdelco-38158-professional-automatic-belt-tensioner-and-pulley-assembly)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-24*