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 20382S Professional Upper Molded Coolant Hose

Product ID: 699720529

Details

Brand
ACDelco
Colour
Gold
Global Trade Identification Number
Manufacturer
ACDelco
Material
Reinforced
UPC
021625583952

🌀Vacuum collapse resistant materials

🔥Heat & ozone resistant cover

🛡️Protective sleeve for GM OE fit

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฿3069

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Upgrade your ride with the hose that works as hard as you do!

PRECISION GM OE FIT - Protective sleeve ensures seamless installation matching original GM designs.
EFFORTLESS INSTALLATION - Molded design prevents buckling or bending, saving you time and hassle.
VACUUM COLLAPSE DEFENSE - Re-engineered materials eliminate need for internal springs, boosting durability.
ENGINEERED FOR ENDURANCE - Heat and ozone resistant cover extends hose lifespan under extreme conditions.
VERSATILE DIAMETER RANGE - Fits multiple vehicle types with inside diameters from 1/4 to 1 inch.

The ACDelco 20382S Professional Upper Molded Coolant Hose is a premium, GM OE-style replacement designed for modern, compact engine compartments. Built with heat and ozone resistant materials, it resists electrochemical degradation and vacuum collapse, ensuring long-lasting performance. Rated for extreme temperatures (-40°F to 275°F) and marine-approved, it offers a perfect fit and easy installation across various vehicle models.

Specifications

ASIN	B000C9I0HE
Brand	ACDelco
Customer Reviews	4.7 4.7 out of 5 stars (248)
Date First Available	7 Aug. 2012
Item Weight	179 g
Item model number	20382S
Manufacturer	ACDelco
Manufacturer part number	88919939
Model	ACDelco - Upper Molded Co (B) (20382S)
OEM Part Number	88919939
Product Dimensions	20.57 x 5.84 x 5.84 cm; 179 g

Reviews

D**L

Fit 2003 GMC envoy

22.11.2025

J**N

Genuine AC Delco

31.08.2023

D**3

Seems same as original equipment.

19.01.2026

R**S

As described

21.10.2025

H**R

Quality

14.01.2025

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