Why is it important to have belts and hoses replaced periodically?

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.

How long do belts and hoses typically last?

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.

What are signs the drivebelt needs replacement?

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.

What about the tensioner pulley?

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.

What are signs of a failing radiator hose?

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.

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ACDelco Gold 38158 Drive Belt Tensioner Assembly with Pulley, Aluminum w/ Black Pulley

ACDelco Gold 38158 Drive Belt Tensioner Assembly with Pulley, Aluminum w/ Black Pulley

Product ID: 5312105

Details

Belt Style
serpentine
Brand
ACDelco
Compatible Devices
Vehicles
Item Weight
16 ounces
Material
Aluminum

🔧Direct OE fit for GM & more

⏱️Quick 20-min install

⚙️Precision aluminum build

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VT18546

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Belt Style
serpentine
Brand
ACDelco
Compatible Devices
Vehicles

Description

⚙️ Keep your engine running smooth — because your ride deserves the gold standard!

LIFETIME CONFIDENCE - Backed by a limited lifetime warranty for peace of mind and long-term value
UNIVERSAL COMPATIBILITY - Fits most GM vehicles and a wide range of makes/models, including special applications
PREMIUM OE QUALITY ASSURANCE - Manufactured to exact GM specs ensuring perfect fit, form, and function
DURABLE ALUMINUM CONSTRUCTION - Lightweight yet robust design with sleek black pulley for lasting reliability
ENGINEERED FOR PEAK PERFORMANCE - Maintains optimal belt tension for flawless accessory drive operation

The ACDelco Gold 38158 Drive Belt Tensioner Assembly with Pulley is a premium aftermarket replacement part designed to maintain precise serpentine belt tension. Crafted from durable aluminum with a black pulley, it meets strict GM specifications for fit, form, and function, ensuring compatibility with most GM vehicles and many other makes. Easy to install in about 20 minutes, this tensioner delivers quiet, reliable performance backed by a limited lifetime warranty, making it the smart choice for professionals and enthusiasts who demand quality and longevity.

Specifications

ASIN	B000C9PFJK
Belt Style	serpentine belt
Best Sellers Rank	#5,284 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Belt Tensioners
Brand	ACDelco
Brand Name	ACDelco
Color	Aluminum w/ Black Pulley
Compatible Devices	Vehicles
Customer Reviews	4.6 out of 5 stars 2,530 Reviews
Global Trade Identification Number	00021625584454
Included Components	Drive Belt Tensioner
Item Type Name	Drive Belt Tensioner
Item Weight	16 ounces
Manufacturer	ACDelco
Material	Aluminum
Material Type	Aluminum
Part Number	88929140
Style Number	38158
UPC	021625584454
Unit Count	1.0 Count
Warranty Description	Limited Lifetime Warranty (Parts Only). Please see ACDelco.com for more details.

Reviews

T**G

22.02.2026

K**I

7.04.2026

R**A

15.03.2026

V**Z

21.11.2025

B**S

24.12.2025

C**L

22.02.2026

M**O

21.02.2026

D**E

19.04.2026

J**E

24.04.2024

A**M

9.02.2023

S**E

30.07.2025

S**L

25.01.2025

N**I

25.12.2022

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