Product Description

Accessory Drive Belt Tensioner Assembly Genuine For BMW

OE Numebr:
OE:11287549873

ITEM DETAILS

Specification
Part Type		Accessory Drive Belt Tensioner
Part Number		11287549873
Interchange Part Number		11 28 7 549 873 /
Weight		1.65 lbs
L x W x H		4.3 x 4.9 x 5.7
Part #		11287549873

Fitment For:

Application	Detail	Years
BMW 750i	United States	2009 – 2018
BMW 750i xDrive	United States	2571 – 2018
BMW 750Li	United States	2009 – 2015
BMW 750Li xDrive	United States	2571 – 2015
BMW Alpina B7	United States	2011 – 2015
BMW Alpina B7	United States	2017 – 2018
BMW Alpina B7L	United States	2011 – 2015
BMW Alpina B7L xDrive	United States	2011 – 2015
BMW Alpina B7 xDrive	United States	2011 – 2015
BMW 760Li	United States	2571 – 2015
BMW X5	United States	2571 – 2013
BMW X5	United States	2015 – 2017
BMW X5	United States	2011 – 2017
BMW X6	United States	2571 – 2017
BMW X6	United States	2008 – 2017
BMW 550i	United States	2011 – 2016
BMW 550i GT	United States	2571 – 2015
BMW 550i GT xDrive	United States	2571 – 2017
BMW 550i xDrive	United States	2011 – 2016
BMW 650i xDrive	United States	2012 – 2018
BMW M5	United States	2013 – 2016
BMW M6	United States	2012 – 2017
BMW 650i	United States	2012 – 2018
BMW 650i Gran Coupe	United States	2013 – 2018
BMW M6 Gran Coupe	United States	2014 – 2017
BMW 650i xDrive Gran Coupe	United States	2013 – 2018
BMW Alpina B6 xDrive Gran Coupe	United States	2015 – 2018
BMW M760i xDrive	United States	2017

 

Part Description:
Idler Pulley, Pulley Assembly Idle, Tensioner Pulley, PULLEY ASSY, IDLE* New and genuine OEM part.
* Original Packaging
* The same parts are used by the manufacturer in the finished vehicle
* Recommended for installation in official service centers of manufacturer

Compatibility or selection:
If you are not sure about compatibility of a chosen part number or need help with search, please:
* For ground vehicles: let us know the full chassis number or VIN
* For outboard engine: send us a photo of an identification label, located on the engine’s clamp
* For watercraft: send us HIN or identification label

Note:
If you do not have this information, please, send us any available information and we will try to help you.
If you need more items than there are available on sale or cannot find the needed 1 in our listing, please, let us know. We will check the availability and update the information.

Packaging & Delivery

Packaging Details: Carton
Lead Time:

Quantity(Pieces)	1 – 100	>100
Est. Time(days)	15	To be negotiated

Deatail Image

Why replace the timing belt with timing components?

Your gas HangZhouage will be dramatically increased when the timing components in your car get checked and serviced at the 60,000-HangZhou interval. A worn-out timing belt can interfere with the functioning of your car’s engine due to improper combustion. With the crankshaft and camshaft adjusted and a new timing belt fitted, the valves of your vehicle will give you great combustion. Getting the timing belt components in your car replaced will cost about a couple of hundred dollars, but damages due to a broken timing belt will cost you your engine. Getting your timing components replaced will give you the comfort of knowing your timing components are working in top-notch condition.

Company Profile
HangZhou CZPT Auto Parts Industry Co., Ltd is a family owned company, established in 2005.
As a real, direct and professional manufacture in China, CZPT has grown to become 1 of greatest manfacturer and exporter in Performance parts, include intake system, exhaust system, cooling system, interior&exterior parts etc.
We own a factory located in HangZhou, HangZhou, which has 8000 square meter, tens of machine, 150 workers, 15 person sales tean, 5 R&D department. Our customers cover North American, South American, Asia, Middle east and Europe. We export the millions of USD per year. Looking forward to have a nice cooperation with you. 
Why Choose YiBai?
It’s simple. The YiBai Company is built on delivering more Quality, Reliability, and Value than any other manufacturer. Whether supplying the world’s automakers with reliable OE parts, or developing aftermarket replacement parts at or above spec, YiBai’s line of products are built to deliver superior all-around performance every day.  
Aftermarket Parts Built At or Above Specification
The quality of YiBai parts is guaranteed because every component that leaves a YiBai factory has been designed with precision, manufactured to the strictest OE standards or above, and subjected to rigorous safety and performance tests. In the end, it all comes down to quality – that’s what the YiBai name stands for.
Measure Everything for a First Time Fit
Our First Time Fit philosophy attracts attention throughout the automotive world, while our commitment to pushing technology into the future and continually sets us apart around the globe.First Time Fit is a promise that YiBai makes to the aftermarket, by providing products that are OE grade or better – and fits the first time.

Our Service
1. OEM Manufacturing welcome: Product, Package… 
2. Sample order 
3. We will reply you for your inquiry in 24 hours.
4. After sending, we will track the products for you once every 2 days, until you get the products. When you got the goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer the solve way for you.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of delivery?
A: EXW, FOB CIF, DDU.
Q3. How about your delivery time?
A: Generally, it will take 15 to 20 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q4. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

 

Replacing a Failing Drive Belt Tensioner

A failing drive belt tensioner can be extremely costly. Here’s what to look for and what to do if you suspect yours is bad. In addition, you’ll learn how to identify Idler pulleys and repair it yourself. If the tensioner is failing, you should replace the belt, as well as the Idler pulleys and shaft bearings. But what if the tensioner isn’t faulty?

Symptoms of a bad or failing drive belt tensioner

If your car’s drive belt is not moving smoothly, the pulley may be at fault. Ideally, the tensioner pulley should move away from the engine when the car starts. However, if it stays put or starts to move toward the engine, it’s time to replace the tensioner. The belt may also start to exhibit different wear patterns, such as the uneven wear of the sprockets, bearings, and springs.
If the serpentine belt begins to look loose and the engine loses its luster, the problem is most likely the bad drive belt tensioner. This issue will result in engine vibration. A faulty drive belt tensioner may also lead to a faulty spark plug, which prevents fuel from burning in the combustion chamber. This issue will likely require an engine diagnostic tool, such as an OBD2 scanner, to determine the cause of the check engine light.
Another sign that your drive belt tensioner is failing is a chirping noise. This noise can occur intermittently or constantly, and it may signal a problem with the pulley. In some cases, a faulty pulley may even cause your engine to misfire. Additionally, you may notice that the engine won’t start, even if you engage the starter motor.
In addition to the noise that may come from a failing tensioner, the bad belt tensioner may cause your serpentine to fail. In addition to the noise, this can also lead to overheating of the engine, which can result in costly damages. In addition to causing engine damage, a bad belt tensioner won’t reserve the minimum tension it needs to do its job and may even exceed it, causing the belt to wear out much faster.
If you notice any of these symptoms, it may be time to replace the drive belt tensioner. You can find a replacement OEM part online at a discounted price, as they’re available in wholesale quantities. A Mazda engine typically has no other parts blocking the serpentine belt path, so you can easily find the part you need. After replacing the drive belt tensioner, you’ll need to replace the serpentine belt as well.

Cost to replace a drive belt tensioner

Depending on the location and type of vehicle, replacing a drive belt tensioner can cost between $235 and $267. Some repairs may require other parts, such as a serpentine belt or tensioner housing. RepairPal’s Fair Price Estimator can help you get an accurate estimate for your particular vehicle. You can also contact HomeX, a virtual repair shop that can fix simple issues like loose drive belt tension.
It’s a relatively simple DIY job for most cars. An experienced mechanic will be able to replace the belt in a half hour or less, depending on the type of car and how many parts are affected. Depending on the complexity of the repair, the labor to replace the drive belt tensioner could cost anywhere from $50 to $170. The labor to replace the drive belt tensioner is typically included in the quoted price, but some auto shops may charge more to replace other car parts as well.
Replacing the drive belt tensioner is a relatively easy task. While the process might take an hour or more, it will be worthwhile in the long run. Regular inspections can prevent costly repairs by identifying problems before they cause major damage. A car’s belt is essential to the operation of the engine and can’t be operated without it. Changing it can save you money, as it will save you from spending extra on unnecessary parts.
Thankfully, there are plenty of tools available to help you replace your drive belt. While it may not be the easiest repair, it will still cost less than a mechanic’s service call. It is better to replace the belt early than to wait for the vehicle to break down, as this will prevent more expensive parts from breaking. You may also consider investing in a premium belt, which will give you twice as much mileage as a cheaper one.
While a drive belt tensioner is generally considered a wear-and-tear item, it is a part that should last the entire life of the vehicle. You can expect to replace the drive belt tensioner no earlier than 125,000 miles, but it is better to do it early if your car isn’t that old. And it doesn’t hurt to check the owner’s manual for directions on how to replace the drive belt tensioner.

Idler pulleys

Idler pulleys may seem like a minor part of your car, but their important job is to keep various components in good working order. Fortunately, they are inexpensive and don’t need much maintenance. If 1 pulley fails, it is best to replace all of them. However, it is not always easy to check idler pulleys yourself. It’s recommended that you visit a professional auto repair shop that is ASE-certified to inspect and replace the idler pulley.
Depending on the size and type of idler pulleys you need, you’ll have to purchase 2 or 3 pieces. You’ll need to purchase a pair of pliers for this part, as well as a tensioner pulley wrench. The cost of a replacement idler pulley will vary by make and model, but you can expect to pay between $40 and $200. These prices don’t include taxes or fees. Because they are so essential to drive belts, it’s worth investing in 1 or two.
Idler pulleys are a vital part of a car’s engine. They’re found underneath the hood and are usually 2 to 4 inches in diameter. They run over a roller that’s used to tension the belt. The belt is wrapped around a series of engine parts, and the idler pulleys are a complement to each other. You may not need an idler pulley on your car, but your mechanic will install it for you if you don’t.
The idler pulleys for a belt tensioner are crucial parts of your car’s engine. If they are worn down, the belt is likely to move loosely over them. Corrosion may also make the idler pulley move less freely. If the idler pulley is slipping, the belt may jump over the pulley, and the squealing noises will indicate a serious problem.
The idler pulley is a pivotal part of the engine’s power train. It redirects the path of the serpentine and timing belts, so that they can make optimal contact. The larger the contact patch, the more power the belt will transfer. The idler pulley can also improve the vehicle’s performance. It is a vital part of the engine, so make sure you check it frequently and install it correctly.

Repairing a drive belt tensioner

Replacing a drive belt tensioner is relatively simple. While your belt may need to be replaced, other parts of your engine may also need to be fixed. Typically, the tensioner will be replaced along with the pulley, as both parts are prone to malfunction. Replacing the drive belt tensioner is a fairly straightforward job, and it should only take about an hour or two. By following these simple steps, you can save yourself a lot of money and time.
You can detect the problem by observing the belt glazing. Typically, it occurs when the tensioner does not have enough spring tension. Another sign of a failed component bearing is excessive arm oscillation. Excessive chattering and oscillation indicate that the damper has worn out. If you notice excessive oscillation, you should replace the tensioner pulley. Otherwise, you might be dealing with a defective bearing.
A damaged or out-of-adjusted drive belt will make a squealing noise. This is due to the belt slipping on the pulleys. It is most noticeable when the car is first started in the morning. A damaged drive belt will also be hard to manipulate. The new belt should be the same length and width as the old one. You can check the tensioner by pulling the belt and compressing it.
A worn-out drive belt tensioner will result in unusual noise, excessive wear, and a loose belt. This is especially affecting if the car is equipped with a serpentine belt. The drive belt tensioner has a roller bearing that can wear out, which will cause a squealing noise or even cause the belt to roll off entirely. Because of its important role in engine operation, it is vital to check the condition of the drive belt tensioner on a regular basis.
While replacing a drive belt tensioner may seem like a simple DIY project, you should consult a mechanic before undertaking the work. The parts and labor costs of a drive belt tensioner repair can range from $140 to $400, and you should allow an hour for this repair. If you are not comfortable performing the repair yourself, you can always hire a mechanic to do it for you. In most cases, a drive belt tensioner replacement will cost approximately $70 to $80 and take about an hour.