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 Professional 18221L Molded Branched Heater Hose, Black

Product ID: 379168884

Details

Brand
ACDelco
Colour
Black
Item weight
535 g
Material
Epdm Rubber
Product dimensions
48.3L x 1.6W

🔥Temp range -40°F to 275°F

🧪EPDM synthetic rubber blend

🛠️GM OE molded fit

R4927

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Molded to perform, built to last – the heater hose your engine deserves!

PROTECTIVE SLEEVE INCLUDED - Ensures added durability and replicates original GM design for reliable performance.
PRECISION GM OE MOLDED DESIGN - Engineered for flawless fit in tight engine bays, eliminating installation hassles.
EXTREME TEMPERATURE RESILIENCE - Operates seamlessly from -40°F to 275°F, built to endure the harshest conditions.
VERSATILE APPLICATION COVERAGE - Fits over 1,200 vehicle models with less than 500 part numbers, streamlining your inventory.
DURABLE EPDM RUBBER COMPOSITION - Premium synthetic blend resists electrochemical degradation for extended hose life.

The ACDelco Professional 18221L Molded Branched Heater Hose is a premium aftermarket replacement designed to meet GM OE standards. Crafted from a proprietary EPDM synthetic rubber blend, it offers superior flexibility and resistance to electrochemical degradation. Rated for extreme temperatures from -40°F to 275°F, it fits a wide range of vehicles with precise molded shapes for easy installation and reliable performance in coolant, water, and air applications.

Specifications

ASIN	B000C9DV8C
ASIN	B000C9DV8C
Brand Name	ACDelco
Color	Black
Customer Reviews	4.8 4.8 out of 5 stars (1,067)
Customer reviews	4.8 4.8 out of 5 stars (1,067)
Date First Available	7 August 2012
Global Trade Identification Number	00021625873329
Included Components	Heater Hose
Item Dimensions L x W	48.3L x 1.6W centimeters
Item Length	19 Inches
Item Type Name	Heater Hose
Item Weight	535 g
Item model number	18221L
Manufacturer	ACDelco
Manufacturer	ACDelco
Material Type	Epdm,Rubber,Synthetic
Nominal Wall Thickness	2 millimeters
Outside Diameter	1 Inches
Product Dimensions	55.37 x 2.54 x 2.54 cm; 535.24 g
UPC	021625873329
Unit Count	1 Count

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