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 GM Original Equipment 12611636 V-Ribbed Serpentine Belt

Product ID: 21454545

Details

Belt Style
Ribbed Belt V
Brand
ACDelco
Compatible Devices
Car
Material
Ethylene Diene
Product Dimensions
17.3"L x 4"W

🔧OE precision fit

⚙️V-ribbed traction tech

🛡️Limited lifetime warranty

$79.42

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Drive with confidence, powered by precision engineering.

LIFETIME CONFIDENCE - Backed by a limited lifetime warranty, giving you peace of mind and a reason to never settle for aftermarket compromises.
LIGHTWEIGHT YET DURABLE - Crafted from premium EPDM material, this belt balances strength and flexibility for long-lasting reliability under all driving conditions.
TRUSTED GM BACKED QUALITY - Manufactured and validated by GM engineers to meet rigorous OE safety and durability standards—because your ride deserves the best.
ENGINEERED FOR PERFECT FIT - ACDelco GM OE design ensures seamless compatibility with Chevrolet, Buick, GMC, and Cadillac vehicles—no guesswork, just flawless performance.
ADVANCED V RIBBED CONSTRUCTION - Maximizes pulley contact and traction for smooth, efficient power delivery to all your engine accessories.

The ACDelco GM Original Equipment 12611636 V-Ribbed Serpentine Belt is a rigorously tested, GM-engineered replacement belt designed for optimal fit and performance in Chevrolet, Buick, GMC, and Cadillac vehicles. Featuring a durable EPDM construction and advanced ribbed design, it ensures superior traction and reliable operation of engine accessories. Backed by a limited lifetime warranty, this OE part guarantees long-term durability and safety compliance.

Specifications

ASIN	B00UIO3XP2
Belt Style	Ribbed Belt, V Belt.
Best Sellers Rank	#147,033 in Automotive ( See Top 100 in Automotive ) #310 in Automotive Replacement Serpentine Belts
Brand	ACDelco
Brand Name	ACDelco
Color	black
Compatible Devices	Car
Customer Reviews	4.7 out of 5 stars 232 Reviews
Global Trade Identification Number	00808709328087
Included Components	Serpentine Belt
Item Dimensions L x W	17.3"L x 4"W
Item Type Name	Serpentine Belt
Item Weight	7.04 ounces
Manufacturer	ACDelco
Material	Ethylene Propylene Diene Monomer (EPDM)
Material Type	Ethylene Propylene Diene Monomer (EPDM)
Part Number	12611636
Product Dimensions	17.3"L x 4"W
Style Number	12611636
UPC	808709328087
Unit Count	1.0 Count
Warranty Description	Limited Lifetime Warranty (Parts Only). Please see ACDelco.com for more details.

Reviews

T**G

Serpentine belt

Fit like a glove original part and it fit perfectly on a Hummer h3 3.7 2010

1.03.2026

D**N

OEM replacement

Perfect fit on 2007 Chevy Colorado 2.9l

23.05.2026

M**G

Awesome OEM part

Perfect fir for 2005 Canyon

10.03.2026

A**D

Right size for 5 cylinder

Fits 2004 Chevy Colorado

20.01.2026

R**L

Perfect fit

This was aperfect fit for my 05 chevy colorado 5 cilinder 3.7 engine. The quality was also very good. It's been on my truck for more than a month and no issues at all.

16.07.2024

V**I

Tool

Great

4.11.2025

A**.

Fits good on 2006 Colorado

Fits good on 2006 Chevy Colorado, runs and sounds good

22.03.2025

C**Y

Belt came as described

It is a belt. The exact one listed for sale. It is stupid you now have to put out a substantially higher dollar amount then say 5+yrs. ago but alas this is sign of times we are living in. 052726 update: Just installed this new 12611636 fan belt and it is pretty decent. Same exact # as the one that came off. 08 Hummer H3 with Approx. 105K miles.

27.05.2026

G**.

Fit perfectly

Belt fit just how it's supposed to. Definitely order again if needed.

22.10.2023

A**R

Good

13.11.2019

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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$79.42

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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