If the serpentine belt breaks on the highway, you would call the tow truck, because you will not be driving anywhere.
This means you should probably replace your serpentine belt a bit earlier than you think is necessary rather than wait for bad things to happen.
It would be a good idea to replace your belt around thirty thousand miles. Mileage and heat are the main causes of wear.
Every time the belt passes around a pulley, it flexes and bends. This generates heat that hardens the rubber over time.
After endless bends and flexes around the pulleys, even the finest OEM begins to suffer the effects of age. So, you would need a replacement.
Here is our roundup of the top five high-performance serpentine belts you can buy today.
|Product Name||Type||Part Number|
|Gates K081264HD||Micro-V Ribbed||8PK3212||View on Amazon|
|ACDelco 6K930 Professional V-Ribbed||V-Ribbed||6K930||View on Amazon|
|ACDelco GM Original Equipment V-Ribbed||V-Ribbed||No Info||View on Amazon|
|Gates K060841||Micro-V Ribbed||6PK2135||View on Amazon|
|Bando USA 6PK2135||Micro-V Ribbed||6PK2135||View on Amazon|
- Top 5 Serpentine Belts on Today’s Market
- Things to consider when buying a Serpentine belt
- Final Words
Top 5 Serpentine Belts on Today’s Market
#1 Gates K081264HD Serpentine Belt
Using some of the world’s finest materials as well as production processes available, this unique Gates Serpentine Belt is designed to leave behind the competition.
This belt is trusted by many satisfied users, due to its wear-resistant construction, tightest tolerance, and most importantly quiet performance.
This product is made up of patented EPDM rubber compound over-cord that resists cracking, thus contributing to extended durability and usage.
Specially made adhesion gum creates the strongest bond to fuse the top over-cord, bottom rib under the cord, and the aramid cord layers.
Stronger than steel, aramid cord prevents elongation on high load carrying high tension drives. The top and bottom cord layers reduce possible misalignment noise.
The integrated aramid construction is what demanding engines need, creating rigidity and stability. For example, engines with high specific output or turbo or diesel engines.
- Patented EPDM rubber compound resist cracking
- Aramid cord prevents elongation on high load
- Top and bottom cord layers reduce misalignment noise
- Wear-resistant construction meets the needs of demanding engines
- Quality seems better compared to the OEM product
- Possible screeching noise when you shut down the engine
#2 ACDelco 6K930 Professional V-Ribbed Serpentine Belt
If you are in search for state-of-the-art replacement belts for ABDS as well as other serpentine belt applications, look no further than the ACDelco 6K930.
You might have been impressed by the OEM product, but you will be amazed by this aftermarket replacement belt.
It is engineered from an EPDM rubber material that is not only temperature resistant but also crack resistant. It offers low noise, longer life performance.
This product is designed to diffuse the load ably via the ABDS belt drive thanks to its precision dimensional control. This operation ensures that all the components run at optimum levels.
Unlike most conventional belts, this model is capable of operating optimally, while accepting misalignments in belt drive systems that are larger.
What’s probably most impressive about this belt is its flexible construction. It can support an endless number of bends at the rear and top, improving durability.
- EPDM rubber is crack and temperature resistant
- Rib profile has a precision dimensional control
- Runs and accepts misalignments in ABDS drive systems
- Flexible construction is capable of withstanding backside and topside bends
- Lasts 50 to 60 percent longer compared to retail belts
- May receive wrong part if not properly ordered
#3 ACDelco GM Original Equipment V-Ribbed Serpentine Belt
If you are in search of a true GM original equipment belt that features innovation and quality, then you should look no further than the ACDelco GM.
It excels in performance compared to some OEM products, due to its patented EPDM rubber construction. The high-performance rubber offers high strength, low noise, and longer life.
This is a v-belt that combines the exceptional stability of flat belts with the remarkable power transmission qualities of v-ribbed design.
The superior coefficient of friction and the larger surface area of this belt delivers vibration-free, more efficient, and smoother performance.
What’s most attractive about this product is the functional belt slippage, which helps to avert blocking. Its unique tensioning guarantees a more effective belt life.
This model seems to be the ideal fit for the: 2011 Silverado, 2009 Chevy, 2007 Silverado, and Yukon Denali. However, we advise you to confirm the fit before buying.
- Capable of tolerating tension without stretching
- Recommended replacement belt for your GM OEM
- Multi-ribbed design offers less slippage and improves performance
- Does a great job of reducing the load on your engine
- Provides the durability, reliability, and quality of GM OEM
- May not work on a diesel engine
#4 Gates K060841 Serpentine Belt
It does not matter whether your vehicle is domestic or imported, every truck or car can rely on the good quality of the Gates K060841 Serpentine Belt.
This product guarantees optimum vehicle performance, due to its advanced innovation that matches the materials, construction, and size of the OEM.
It is a micro-v design that offers optimal working performance in order to deliver the highest value, which tells you how good it is compared to competing models.
It has a unique belt design that eliminates misalignment noise and tension loss. This construction also solves drive application problems.
Apart from the use of patented EPDM rubber material that is crack and heat resistant, this product also features high strength aramid fiber.
Aramid fiber/cord is known for its exceptional performance under stress. Thanks to this material, this belt will hardly succumb to high loads.
- Meets/exceeds all specs from the OEM
- Advanced EPDM and aramid materials are high performance and durable
- Unique belt construction gets rid of tension loss
- Micro-v design offers optimum operating performance
- An ideal choice for light trucks and passenger cars
- May squeal on some vehicle models
#5 Bando USA 6PK2135 Serpentine Belt
The Bando USA 6PK2135 Serpentine belt is precision ground a couple of times in order guarantee adherence to the original equipment specifications.
Bando understands that some vehicle engines need distinctive belt designs made of high strength cord that eliminates noise and deliver long belt life.
Unlike conventional products that are engineered from a molding process, this Bando belt features patented EPDM rubber construction that is cracked as well as heat resistant.
The strong tensile materials of this belt are known to carry superior horsepower loads without succumbing to stretching or cracking.
Some of you may be wondering whether this product fits air and power steering. It does weave around different pulleys. Just confirm with your car’s serpentine belt diagram.
It seems to be a good fit for the 2007 Acura TL Type-S and the 1994 Buick Road Master V8.
- Patented materials offer optimum performance
- Strong tensile cords won’t give in to stretching under high loads
- Grounded ribs are highly worn resistant and durable
- Will not crack under extended extreme working temperatures
- It meets original equipment specifications
- May not provided extended durability on some vehicles
- May produce a squealing noise
Things to consider when buying a Serpentine belt
A single belt has a great contact patch that can keep all your accessories working efficiently, quietly, and in an adjustment.
In today’s automotive market, original equipment manufacturers are constantly evaluating belt performance and make updates to address inadequate belt drive in specific applications.
We have researched most of the top serpentine belt manufacturers in the world in order to find top quality belts that will virtually fit any vehicle.
Here are the factors that we took into consideration during our research.
Choosing the Correct Belt Size
We advise you to always use an exact replacement. The size of a new serpentine belt is normally provided, along with the part number, on the belt packaging.
You can confirm that the belt is a replacement for the old one by comparing the OEM and the aftermarket physically.
However, this does not account for any belt stretch that may have occurred. With that in mind, you should only use this comparison as a verification.
The most ideal way of selecting the appropriate replacement belt is with a parts catalog or by matching the numbers on the OEM to the numbers on the new belt.
Before you remove a serpentine belt, you should first find your belt routing diagram in the service manual, and compare that diagram with the routing of the worn out belt.
Know the Part Number
The two-part number you will see on the new belt provide crucial information with respect to the belt’s effective length.
Usually, the measurement of the total length is referred to as the effective length of either a V or Micro-V belt, which is obtained at the cord line vs. the exterior perimeter of the belt.
How the part number is obtained ensures that the measurements are as accurate as possible in order to provide a proper fitment between OEM and aftermarket belts.
Let’s take the following part number; for example, 6PK2135. We can break down this number into three parts: number of ribs; info on belt application; and effective length in millimeters.
6: Indicates that this is a six-ribbed belt
PK: Tells you that this is a Micro-V ribbed serpentine belt
2135: This refers to the effective length in millimeters.
We would also like to emphasize that the outside circumference/perimeter is not the same as the effective length.
The results obtained when you match the outside circumference and the part number measurement would be substandard.
If deciphering the part number seems to be more complicated than you would have imagined, then it is a good idea to consult an expert at an automotive shop.
Most popular serpentine belts in the market may be made of either neoprene or EPDM. According to our findings, most models are made of EPDM.
However, vehicles manufactured before 2001 or cheap aftermarket replacements may still be constructed of neoprene.
Practically, it may be difficult to tell the difference between the two materials, if you were to be presented with both neoprene and EPDM belts.
When compared to neoprene, EPDM belts are more elastic and effective at resisting cracking even at higher mileage.
Some serpentine belt manufacturers, such as Gates, are known to use aramid fiber along with EPDM rubber to enhance the performance of their products.
The aramid fiber/cord can be comparable to steel in terms of strength. This material helps to prevent elongation on high load carrying high tension drives.
Aramid fiber construction is required in very demanding engines in order to create rigidity and stability. This may include engines with poor accessory drive geometry and engines with a high specific output.
Superior Rib Construction
You are likely to observe belt flutter if you use a replacement that is of poor rib construction. This problem is normally common in the longest belt span in the pulley.
Belt fluttering may generate stress on the accessory bearings and hubs, creating heat and eventually bearing failure.
At the same time, the fluttering generates belt slip around the pulleys. This can cause a number of problems, including:
- Belt noise
- Bearing failure
- Lack of charging
- Power steering loss
- False engine codes
These awkward conditions are all attributed to load on drive accessories, drive geometry, and the rotational vibration from the crankshaft.
All the aforementioned problems can be avoided by using serpentine belts that feature superior rib construction.
A superior rib construction will run without excessive movements. It will also reduce noise, spam vibration, as well as harshness.
Unlike before, top quality serpentine belts in today’s market are designed to last longer. This is mainly due to advancements in material (EPDM and aramid cords) and construction.
Normally, a belt is supposed to serve you for an average of sixty thousand to a hundred thousand miles. However, the lifespan may reduce due to tension.
Replacement is usually a must do, if your OEM breaks and your car stops running. Regular inspection is in order to avoid such a scenario.
When shopping for a replacement, always remember to factor in the size, part number, and construction. Consult an automotive expert, if you are not sure.