Product Description

CZPT Fan Belt Tensioner Pulley 5262500 for Engine ISF, with list of belt tensioners for CZPT engines, as below: 

Engine	Description	Part #	Part #	Part #	Part #	Part #
B3.9	belt tensioner	3922900	3914854	3936210	3936198	3936207
B3.9	belt tensioner	3936204	3937555	3936197	3936206	3936201
B5.9	belt tensioner	3937553	3934818	3914086	3978571	3936202
B5.9	belt tensioner	3936203	3924026	3978571	4994573	3976832
B5.9	belt tensioner	3928748	3934824	3936208	3973825	3934814
B5.9	belt tensioner	5333478	3917440	3934819	3936205	5333481
B5.9	belt tensioner	3918944	3934817	3973822	3921524	3934816
B5.9	belt tensioner	3976833	3957433	393 0571	3973824	5333486
B5.9	belt tensioner	3922549	3925625	3934820
C8.3	belt tensioner	3937556	4898548	4987964	3936212	3934830
C8.3	belt tensioner	3969564	3959042	3991495	3936213	3976831
C8.3	belt tensioner	3933725	3934831	3973823	3917485	5333477
C8.3	belt tensioner	3934822	3973827	5333480	3967190	3281583
C8.3	belt tensioner	3934821	3945527	5259571
6ISBE	belt tensioner	3947574	4891116	4936640	4987964	3979316
QSB	belt tensioner	3976834	3957434
ISF2.8	belt tensioner	5262500
ISF3.8	belt tensioner	5267127	5287571	4980639	5287571
K19	belt tensioner	3009639
M11	belt tensioner	3457141	3400885	3157189	3062602

origins from Cummins, who produces most CZPT engine series in China, including:
 

SN	Models
1	4BT3.9, 6BT5.9, 4ISBE4.5, 6ISBE6.7, QSB4.5, QSB6.7, ISB
2	6CT8.3, L8.9, L9.3, L9.5, ISLe8.9, QSL
3	MTA11, QSM, ISME
4	ISF2.8, ISF3.8, QSF2.8, QSF3.8
5	ISZ13, QSZ13, ISG
6	NT855
7	KT19, KT38, KT50, QSK19, QSK38, etc

for different applications, such as:
 

SN	Applications
1	diesel generator set
2	water pump set, fire pump set
3	construction and engineering machinery (crane, excavator, bulldozer, loader, etc)
4	Automobile (bus, coach, shuttle, etc)
5	marine main propulsion, marine auxiliary generator set

And besides complete engines, we also export a lot of engine parts parts, including:     
 

SN	Part Descriptions
1	cylinder head, cylinder block, cylinder liner
2	piston, piston ring, conrod
3	main bearing, conrod bearing, thrust bearing
4	fuel injector, fuel injection pump, common rail
5	oil pan gasket, cylinder head gasket
6	overhaul gasket kit, upper gasket kit, lower gasket kit
7	oil pan
8	fuel transfer pump, water pump, oil pump, vacuum pump, power steering pump
9	oil filter, fuel filter, fuel water separator, air filter, Etc

Beyond Cummins, we also deal with many other brands of engines and gearboxes, etc, including:
 

SN	Brands
1	Deutz, MWM
2	CAT
3	Detroit
4	Weichai
5	Isuzu
6
7	Perkins
8	Yuchai
9	SDEC
10	Advance
11	Fada
12	Jinbei, Brilliance
13	Iveco, Yuejin
14	WEICHAI

FAQ:
Question: What is the price ?
Answer: Our prices are determined by various factors, including: Brand, Model, Power, Quantity, Price Term (FOB, CIF, CPT, FCA, etc), Certificates, etc.
Question: What is the MOQ ?
Answer: for complete engine, 1 set; for engine parts, 1 engine set;
Question: Are samples available ?
Answer: Sample order is acceptable, but with higher unit price.
       For regular partners, if necessary, free samples are available.
Question: How long is the production cycle (lead time) ?
Answer: for engine parts, we usually have enough stock; for engines, usually around 10-20 days; for stock engine, usually 1 week.
Question: How long is the shipment?
Answer: if by Express, usually 3-4 working days; if by air, usually 3-5 working days; if by sea, 3-7 days to Southeast Asia, 15-20 days to Middle East, South Asia and Australia, 20-25 days to Europe, USA and Africa, 30-35 days to Latin America and other regions.
Question: What are your payment methods ?
Answer: we accept T/T (bank wire transfer), L/C, Western Union, Money Gram, Sigue, Secured Trade through Made-in-China, etc.
Question: Do you supply any other brand ?
Answer: we entered stock engine industry since 2016, mainly focusing in engines in stock, never used, still under good condition, made in US/UK/Germany/Japan/Korea/China, etc. Sometimes we have stocks of other brands than our normal list of brands. Thus, any inquiry is warmly welcomed and we will always do best to support customers.

How to Fix a Faulty Drive Belt Tensioner

If you’re experiencing grinding, squeaking, or other unusual sounds from your car, your drive belt tensioner may be the culprit. In this article, we’ll discuss why a failed drive belt tensioner may need to be replaced and how to fix it. Once you have determined that your belt tensioner is faulty, you can use a Wrench to remove it and replace it with a new one. After you replace the belt tensioner, it will no longer be making noises.

Problems with timing belt tensioner

Whenever your engine is making strange noises, it is likely that the timing belt tensioner is causing the problem. A bad timing belt tensioner is a big cause of such sounds, as the timing of the engine is critical. When the belt is moving properly, the camshaft and crankshaft are perfectly synchronized, and the valves work in perfect sync during the intake and exhaust strokes of each cylinder.
Other signs of a worn tensioner include rust bleeding and dripping. Usually, rust will appear at the mounting bolts and “stops” on the tensioner. Other symptoms of a worn timing belt tensioner are noise, resistance, and roughness. If any of these symptoms are present, it’s important to get the car fixed as soon as possible. Troubleshooting problems with timing belt tensioner is an easy process if you know the symptoms.
If your car starts making squeaking or grinding noises when you drive, it’s probably the timing belt tensioner. The timing belt can also cause problems with your engine’s valves. When the timing belt is too loose, the valves cannot fully combust the fuel-air mixture. If this problem is left undiagnosed, it could result in severe engine damage. To solve the problem, you must replace the timing belt tensioner.
The repair of the timing belt tensioner is not a difficult job if you’re experienced and comfortable with DIY car repairs. If you have a good knowledge of car repair, you can try to replace it yourself – but don’t forget that it is a complex repair job that requires a lot of skill. So, it’s best to hire a professional mechanic. And if you don’t have the necessary tools and training, you can always try the DIY method.
Other symptoms of a bad timing belt tensioner include an abnormal chirping noise, misfiring, and check engine light malfunction. If you notice any of these symptoms, you should replace the timing belt tensioner as soon as possible. Often, the belt is wearing out and can’t spin freely. You may have to replace the timing belt tensioner to avoid major damage to your engine. The best way to tell if the timing belt tensioner is failing is to check it regularly.

Cost of a new drive belt tensioner

A new drive belt can be expensive. Replacing 1 is usually a straightforward task that requires little knowledge, but some cars are more difficult than others. Replacing a drive belt by yourself may result in the replacement of parts you do not know. You may also encounter problems that cannot be resolved unless you have a mechanic check all the affected parts. You can save money by taking the car to a mechanic before trying to fix the problem yourself.
A drive belt tensioner should last at least 125,000 miles, but can break sooner. Most car mechanics will replace the tensioner after you notice the belt is slipping. It takes about 15 minutes to an hour to replace 1 of these parts, and you can do it yourself with the proper tools. You can also ask about the replacement of pulleys or sprockets. The price of a new drive belt tensioner depends on the make and model of your car.
The average cost to replace a drive belt tensioner is between $235 and $267. This cost includes labor and parts, but doesn’t include taxes or fees. Some vehicles may need related repairs as well, such as serpentine belts or tensioner housing. For a detailed estimate, use the RepairPal Fair Price Estimator. You can compare labor costs and shop for the best price. There are many options available online, and you can choose the most convenient 1 for your needs.
In addition to replacing the drive belt, you should also check the idler pulleys, which do not drive anything. If they have excessive movement, replace them. A failed drive belt tensioner can cause the belt to slip and affect other components of the car. You may also notice warning lights that indicate a problem with the alternator, water pump, or power steering. You should also check your vehicle’s air conditioning.
Replacing the tensioner pulley can be done yourself for about $50. Depending on the type of pulley and belt, you may need to replace other parts of the engine as well. You can save money by replacing a tensioner pulley yourself if you have the time and skills. It’s easy to replace a new drive belt tensioner if you’re a mechanically inclined individual.

Repair options for a failed drive belt tensioner

A failed drive belt tensioner may have several symptoms. For instance, it can make a grinding or squealing sound, and it may emit a burning smell. The battery light on your car may also stay on. These are all signs that your drive belt has failed. However, these symptoms are not always indicative of the failure of the drive belt tensioner. Listed below are some common problems that can be caused by a failed drive belt tensioner.
To check for a failed drive belt tensioner, turn off the engine and examine the arm. If it doesn’t move, it’s time to replace the drive belt. A manual drive belt tensioner is easy to replace. A hydraulic or bad spring drive belt tensioner, however, will not be able to be fixed. If you can’t find a repair shop in your area, visit 1 of NAPA AutoCare locations, or a NAPA online store. They will be able to diagnose the failure and provide solutions for your car.
A spring tensioner is a type of drive belt tensioner that uses a spring-loaded pulley to apply the proper tension to the drive belt. However, spring tensioners can fail and seize if not properly maintained. A hydraulic tensioner uses hydraulic oil under pressure and can malfunction. In some cases, the tensioner can leak oil or lose its ability to tension the drive belt. It can also be damaged by excessive wear, which will cause the belt to break.
A failed drive belt tensioner can affect your car’s performance and functionality. In addition to making your car squeaky and jerky, a failed drive belt tensioner can cause the serpentine or v-belt to slip and wear out prematurely. Repairing a failed drive belt tensioner can also prevent your car from experiencing the same problems in the future. So, what do you do if you find your drive belt is slipping?
If your drive belt tensioner isn’t the problem, you’ll have to replace it. In some cases, a loose tensioner arm can lead to cracks in the tensioner housing. In the worst case scenario, the damaged tensioner can also lead to an overheated engine. Ultimately, a failed drive belt tensioner can cause your car to experience overheating, weak battery charging, and even a weakened power steering system.

Maintenance requirements for a drive belt tensioner

Drive belt tensioner maintenance begins with proper alignment of the pulleys. Misaligned pulleys or drives can wear a belt out too fast. Misalignment can occur if the component was recently replaced. A set of shims can restore the pulleys to the proper alignment. It is important to regularly check the tensioner to ensure proper function. Also, check the belt for cracks or wear.
Before performing any maintenance work, always turn off the drive to protect the motor. The belt should be in a safe position so that it will not fall on the workers. Lock down any moving parts and ensure the fans do not freewheel. When inspecting the drive belt tensioner, examine the belt guard for wear and debris. If the belt is damaged or has excessive heat, it is necessary to clean it or replace it.
It is important to maintain a proper fit between the belt and the drive belt tensioner. An incorrectly-sized drive belt will be difficult to install and adjust. An incorrect-rib count drive belt will fit, but will not last as long. Likewise, drive belts with too many ribs will not last as long. For these reasons, drive belt tensioners should be replaced when they are over 50,000 miles.
A drive belt tensioner is a pulley that rides on the outside surface of the serpentine belt. Its purpose is to maintain constant pressure on the pulleys that power car components. It is typically mounted on the front of the engine, bolted to the crankshaft, and rests against the serpentine belt. If the drive belt is cracked, it needs to be replaced immediately. If the arm is loose or bent, the bearings in the tensioner are probably worn.
The drive belt tensioner is an important part of the drive system, which is essential for smooth operation of the vehicle. However, it does wear out prematurely and should be replaced at a certain mileage. It should also be inspected for normal wear and tear as a result of road dirt, excessive heat, and oil leaks. However, it is important to remember that drive belts are highly sensitive to excessive heat, road dirt, and oil leaks.